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Bosco Siaufung Tjan

Department of Psychology and Neuroscience Graduate Program University of Southern California

Los Angeles, CA 90089-1061 Tel: (213) 821-2953 Fax: (213) 746-9082

Web: http://tlab.usc.edu E-mail: btjan@usc.edu

October, 2015

EDUCATION

1/1997: Ph.D., Computer and Information Science, University of Minnesota. Studied under Professors Gordon Legge, Daniel Kersten (Psychology) and Bill Thompson (Computer Science). Dissertation (defended 12/1996): Ideal Observer Analysis of Object Recognition.

7/1992: Summer course: Computational Neuroscience–Vision, Cold Spring Harbor Laboratory.

7/1987: B.Sci. (honors), Computer Science, University of Kansas.

POSITIONS 2015 – present: Professor

Department of Psychology, University of Southern California. 2011 – present: Co-director, Dana and David Dornsife Cognitive Neuroimaging Center,

University of Southern California. 2001 – present: Voting member of the Neuroscience Graduate Program. 2008 – 2015: Associate Professor

Department of Psychology, University of Southern California. 2010 – 2013: Head, Brain and Cognitive Science Area

Department of Psychology, University of Southern California. 2001 – 2008: Assistant Professor

Department of Psychology, University of Southern California. 1998 – 2000: Research Associate

NEC Research Institute, Princeton, New Jersey. Computational and psychophysical aspects of object recognition. Supervisors: Drs. John Oliensis, David Jacobs.

1997 – 1998: Postdoctoral Research Fellow Max-Planck Institute for Biological Cybernetics, Tübingen, Germany. Behavioral and computational studies of 3-D object recognition, symmetry perception, scene recognition, haptic perception, and virtual environments. Supervisor: Prof. Heinrich Bülthoff

1990 – 1996: Research Assistant Department of Psychology, University of Minnesota. Psychophysical and computational studies of object recognition using ideal-observer analysis. Supervisors: Profs. Gordon Legge, Daniel Kersten.

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1989 – 1996: Research Assistant Computer Science Department, University of Minnesota. Project lead: data-flow visual query language for large-scale real-time database. Supported by the Minnesota Department of Transportation for a long-term pavement study. Supervisor: Prof. James Slagle.

1988 – 1990: Research Assistant Computer Science Department, University of Minnesota. Knowledge representation and automated inference on sets, plural nouns, and numerical quantifiers with a semantic network. Supervisor: Prof. James Slagle

1988 – 1990: System Administrator Computer Science Department, University of Minnesota Specialized in Lisp machines, Macintosh computers and Unix workstations.

TEACHING

2001 – : University of Southern California Undergraduate courses Cognitive Processes Cognitive Neuroscience Sensation and Perception Optical Illusions and Visual Computations Functional Imaging of the Human Brain Graduate courses Advanced Overview of Neuroscience Bayesian Approaches to Visual Perception Early Visual Processing Late Visual Processing Introduction to Functional Magnetic Resonance Imaging Introduction to Neural Network Methods in Visual Psychophysics

1999, Fall: Co-instructor Introduction to Perception. Rutgers University, Newark, with Dr. Zili Liu

1999, Spring: Co-instructor Seminar: Computational Vision. Rutgers University, Newark, with Dr. Zili Liu

COMMITTEES

2002 – present: Admissions Committee (chair, 2008-2010; co-chair 2011-present), Neuroscience Graduate Program

2005 – present: Technical Committee (chair), Dana & David Dornsife Cognitive Neuroscience Imaging Center

2006 – present: Executive Committee, Neuroscience Graduate Program 2015 – present: Faculty search: Director of the Center of Image Acquisition, Stevens

Neuroimaging and Informatics Institute 2015 – present: Faculty search: Clinic Psychology – Lifespan 2013 – 2014: Faculty search: Big Data

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2012 – 2013: Faculty search (co-chair): Psychology-Linguistics Joint Search 2011 – 2012: Distinguished Lecture Series (informal faculty recruitment) 2010 – 2011: Faculty search: William M. Keck Chair in Psychology and Biological

Sciences 2009 – 2011: Graduate Admissions Committee, Psychology 2008 – 2010: Dean's Neuroscience Advisory Committee 2007 – 2009: Graduate Committee, Psychology 2006 – 2009: Coordinator, USC Neuroscience Graduate Seminars 2006 – 2007, 2002 – 2003, 2010 – 2013: Executive Committee, Psychology 2004, 2006: Consultative Committee for department chair searches, Psychology 2003 – 2005: Technical liaison committee and founding member of Dana & David

Dornsife Cognitive Neuroscience Imaging Center 2002 – 2010: Student Advisement Committee, Neuroscience Graduate Program

JOURNAL AND CONFERENCE REVIEWER

Brain Research Cognition Cognitive Psychology Cognitive Science Current Biology European Conference on Visual Perception Frontiers in Computational Neuroscience Frontiers in Psychology Human Brain Mapping Investigative Ophthalmology and Vision Science Journal of the Optical Society of America A Journal of Vision Journal of Experimental Psychology: Human Perception and Performance Journal of Neurobiology Journal of Neuroscience Memory & Cognition NeuroImage Pattern Analysis and Machine Intelligence Perception Perception & Psychophysics PLoS ONE PNAS

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Psychological Review Psychological Science Spatial Vision Transactions on Applied Perception Transactions on Neural Systems & Rehabilitation Engineering Vision Research Vision Sciences Society Visual Neuroscience

JOURNAL EDITOR

Journal of Vision (Board of Editors) Scientific Reports (Board of Editors) Perception and Psychophysics (Consulting Editor) Journal of the Optical Society of America A (Guest Editor) Frontiers in Perception Science (Review Editorial Board)

GRANT REFEREE / STUDY SECTIONS

REGULAR NIH Mechanisms of Sensory, Perceptual, and Cognitive Processes (SPC) Study Section

(ad hoc: 2012, 2013; regular 2014-present) Humanities, Social Sciences and Business Studies Panel, Research Grants Council of

Hong Kong (regular 2008-2014) AD HOC AFOSR (external) Biotechnology and Biological Sciences Research Council, UK (ad hoc, external) Le Fonds québécois de la recherche sur la nature et les technologies, Canada (ad hoc,

external) Medical Research Council (ad hoc, external) Natural Sciences and Engineering Research Council of Canada (ad hoc, external) NIH Visual System Small Business Study Section (member, 2004 – 2006) NIH Central Visual Processing Study Section (2003, ad hoc) NIH Neuroscience and Ophthalmic Imaging Technologies (NOIT) Study Section (ad hoc:

2014) NSF Program Advisory Panel (member, 2009 – 2011) The Wellcome Trust, UK (ad hoc, external)

OTHER SERVICES AND AWARDS

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USC Neuroscience Graduate Forum Faculty Member of the Year (2011) Panelist, National Eye Institute Low Vision and Blindness Rehabilitation Planning (2011) Co-editor, Special Issue “Ideal observers and efficiency, commemorating the 50th

anniversary of Tanner & Birdsall.” Journal of the Optical Society of America A (2008-2009)

Co-organizer, Symposium: The past, present, and future of the written word, Annual Meeting of the Vision Sciences Society (2008)

Co-editor, Special Issue on Crowding, Journal of Vision (2006-2007) Cognitive Advisory Panel, Medical Division, Oxford University Press (2006-) Co-organizer, Symposium: Crowding, the European Conference on Vision Perception

(2006) Grant recipient, APA Advanced Training Institute in fMRI (2001) Co-organizer, Symposium: Optimal observers of visual perception and cognition, The

Annual Meeting of OSA (2001) Co-organizer, The Annual Workshop of Object Perception and Memory (2000) NEI ARVO Travel Award (1995) Lotus Delta Coffman Leadership / Service Appreciation (1990) Vice President of Hongkong China Observers (1990 – 1996) President of Hong Kong Student Association (1989 – 1990) Chair, Policy & Planning Committee, Chateau Student Housing Association (1988–1992)

GRANTS Extramural Current: 2015/9-2019/8 (PI, U01) NEI/NIH. Human Connectomes for Low Vision,

Blindness, and Sight Restoration. $2,747,327 direct, $1,285,223 F&A. [NIH U01EY025864]

Current: 2014/8-2019/6 (PI, R01) NEI/NIH. Form Processing in the Periphery. $1,173,488 direct, $483,496 F&A. [NIH R01EY017707]

- continuation of: 2008/5-2014/4 (PI, R01) NEI/NIH. Form Processing in the Periphery. $806,984 direct, $469,182, infrastructure supplement (2009/9-2011/8), $299,996 F&A [NIH R01EY017707]

Current: 2013/9-2016/8 (CoI) CBET/NSF. EAGER: Neural Plasticity Driven by Electrical Stimulation of the Retina. $300,000 total. My budget: $77,065 direct, $49,582 F&A. [CBET-1353018; PI: James Weiland]

Current: 2015/3-2016/3 (CoI) FFA. Indoor Navigation of Airport Terminals by people with Vision Impairment. $100,000 total. My budget: $7,500 (consultancy contract, no F&A); PI: Gordon Legge]

Completed: 2012/9-2014/8 (PI) BCS/NSF. EAGER: Separating BOLD Nonlinearity from Neuronal Nonlinearity in Human with Achiasma. $48,011 total. [BCS-1255994]

Completed: 2007/10-2014/8 (CoI, R01) NEI/NIH. Mid-Level Vision Systems for Low Vision. $5,925,286 total, including F&A. My budget (College satellite account): $405,531 direct, $249,701 F&A [NIH R01EY016093; PI: Norberto Gryzwacz]

Completed: 2008/9-2013/5 (PI of USC consortium, SBIR Phase II) NEI/NIH. Development of a Digital Sign System for Indoor Wayfinding by Visually Impaired Pedestrians. 3 yrs.

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Lead partner: Kevin Kramer, AME. $1M total; $38,382 USC component. [NIH R44AG033522 / AME08-Digitalsign-37]

Completed: 2009/11-2012/9 (PI of USC Consortium) NEI/NIH SBIR Phase II: A database of IOL position and behavior. 2 yrs. $806,908 total. $200,447 for USC consortium. [NIH 2R44EY015655-02; PI Susan Strenk]

Completed: 2007/7-2012/6 (Collaborator; 8.3% FTE) NIDCD/NIH. Visual Speech Perception and Neural Processing. $1,865,000 total [NIH 1R01 DC008583-01A1, PI: Bernstein]

Completed: 2005/4-2010/1 (PI; R03) NEI/NIH. Uncertainty and the Order of Visual Processing in Cortex. $300,000 direct, $188,375 F&A. [NIH R03EY016391]

Completed: 2004/8-2008/7 (Program Faculty) NSF, Major Research Instrumentation. Acquisition of an fMRI Basic Research Imaging System at the University of Southern California. $1,240,504 direct, no indirect. [NSF 04207994, PI Beiderman]

Completed: 2006/9-2007/8 (PI of USC consortium, SBIR Phase I; 8.3% FTE) NEI/NIH. Development of a Digital Sign System for Indoor Wayfinding by Visually Impaired Pedestrians. Lead partner: Kevin Kramer, AME. $11,409 (USC component). [NIH R43EY017777 / AME06-DigitalSign-28]

Completed: 2001/1-2006/12 (CoI; 8.3% FTE) National Institute for Disability Research and Rehabilitation, Dept. of Education. Wayfinding technologies for people with visual impairments: Research and development of an integrated platform: Consortium, with Sendero LLC as lead partner. $306,267 (Minnesota component). [NIDRR H133A011903, Minnesota PI: Legge]

Internal 2007-2008. (PI) USC Undergraduate Research Program. Neural origin of form-vision

deficit in the periphery – an fMRI study: $6,600. 2005-2006. (PI) USC Undergraduate Research Program. Neural correlates of visual

crowding – an fMRI study: $10,000. 2003-2004. (PI) USC Undergraduate Research Program. Neural and visuomotor correlates

of top-down shape perception: $10,000. 2002-2003. (PI) USC James H. Zumberge Faculty Research and Innovation Fund.

Differences in central and peripheral vision – a functional brain imaging study: $25,000.

2001-2002. (PI) USC Undergraduate Research Program. Spatially broadband processing in central and periphery vision: $10,000.

INVENTIONS

Legge G.E., B.S. Tjan & P.J. Beckmann. Digital Sign System (DSS) for Indoor Wayfinding for the Visually Impaired. Invention disclosure, July, 1999, and published description by Tjan, Beckmann, Roy, Giudice and Legge (2005).

Cunningham S.I., Tjan, B.S., Weiland, J.D., Faraji, B., & Castro, R.A. Development of Methods for fMRI in Retinal Prosthesis Subjects. U. S. Patent pending (S626-PRO, 2010).

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CONSULTANCY The Round Table Group (consulted on intellectual property cases related to vision and

visual devices) Wicab Inc. (consulted on the development and testing of a tactile device for vision

substitution)

PUBLICATIONS Peer-reviewed Articles († = corresponding author/s, underline denotes students and postdocs under my supervision) (All articles are available for download at: http://tlab.usc.edu/publications.php)

Cunningham, S. I., Shi, Y., Weiland, J. D., Falabella, P., Olmos de Koo, L. C., Zacks, D. N., and Tjan†, B. S. (in press). Feasibility of Structural and Functional MRI Acquisition with Unpowered Implants in Argus® II Retinal Prosthesis Patients: A Case Study. Translational Vision Science and Technology.

Files, B. T., Tjan, B. S., Jiang, J., & Bernstein†, L. E. (2015). Visual speech discrimination and identification of natural and synthetic consonant stimuli. Frontiers in Psychology, 6(878). http://doi.org/10.3389/fpsyg.2015.00878

Cunningham, S. I., Weiland, J. D., Bao, P., Lopez-Jaime, G. R., & Tjan†, B. S. (2015). Correlation of vision loss with tactile-evoked V1 responses in retinitis pigmentosa. Vision Research, 111, Part B, 197–207. http://doi.org/10.1016/j.visres.2014.10.015

Kwon, M., Bao, P., Millin, R., & Tjan†, B. S. (2014). Radial-tangential anisotropy of crowding in the early visual areas. Journal of Neurophysiology, 112(10), 2413–2422. doi:10.1152/jn.00476.2014

Tjan, B. S., Chao, E., & Bernstein†, L. E. (2014). A visual or tactile signal makes auditory speech detection more efficient by reducing uncertainty. The European Journal of Neuroscience, 39(8), 1323–1331. doi:10.1111/ejn.12471

Millin, R., Arman, A. C., Chung, S. T. L., & Tjan†, B. S. (2014). Visual crowding in V1. Cerebral Cortex (New York, N.Y.: 1991), 24(12), 3107–3115. doi:10.1093/cercor/bht159

Kwon†, M., Nandy†, A. S., & Tjan, B. S. (2013). Rapid and persistent adaptability of human oculomotor control in response to simulated central vision loss. Current Biology, 23(17), 1663–1669. doi:10.1016/j.cub.2013.06.056

Wallace, J. M., Chiu, M. K., Nandy, A. S., & Tjan†, B. S. (2013). Crowding during restricted and free viewing. Vision Research, 84, 50–59. doi:10.1016/j.visres.2013.03.010

Thompson†, B., Tjan, B. S., & Liu, Z. (2013). Perceptual Learning of Motion Direction Discrimination with Suppressed and Unsuppressed MT in Humans: An fMRI Study. PLoS ONE, 8(1), e53458.

Legge†, G. E., Beckmann, P. J., Tjan, B. S., Havey, G., Kramer, K., Rolkosky, D., Gage R, Chen M, Puchakayala S, Rangarajan, A. (2013). Indoor Navigation by People with Visual Impairment Using a Digital Sign System. PloS ONE, 8(10), e76783. doi:10.1371/journal.pone.0076783

Nandy†, A. S., & Tjan†, B. S. (2012). Saccade-confounded image statistics explain visual crowding. Nature Neuroscience, 15(3), 463–469. doi:10.1038/nn.3021

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Gold†, J. M., Mundy, P. J., & Tjan, B. S. (2012). The perception of a face is no more than the sum of its parts. Psychological Science, 23(4), 427–434. doi:10.1177/0956797611427407

Kwon, M., Ramachandra, C., Satgunam, P., Mel, B. W., Peli, E., & Tjan†, B. S. (2012). Contour enhancement benefits older adults with simulated central field loss. Optometry and Vision Science, 89(9), 1374–1384.

Wallace, J. M., & Tjan†, B. S. (2011). Object crowding. Journal of Vision, 11(6):19, 1–17, http://www.journalofvision.org/content/11/6/19, doi:10.1167/11.6.19.

Lu†, Z., Li, X., Tjan, B. S., Dosher, B. A., & Chu, W. (2011). Attention Extracts Signal in External Noise: A BOLD fMRI Study. Journal of Cognitive Neuroscience, 23(5):1148-59. doi:10.1162/jocn.2010.21511

Sun, G. J., Chung, S. T. L., & Tjan†, B. S. (2010). Ideal observer analysis of crowding and the reduction of crowding through learning. Journal of Vision, 10(5):16, 1–14, http://journalofvision.org/content/10/5/16, doi:10.1167/10.5.16.

Legge†, G. E., Tjan, B. S., Chung, S. T. L., & Bigelow, C. (2010). Do image descriptions underlie word recognition in reading? British Journal of Psychology (London, England: 1953), 101(Pt 1), 33-39; author reply 41-46. doi:10.1348/000712609X474730

Gold, J. M., Abbey, C., Tjan, B. S., & Kersten, D. (2009). Ideal observers and efficiency: commemorating 50 years of Tanner and Birdsall: introduction. Journal of the Optical Society of America. A, Optics, Image Science, and Vision, 26(11), IO1-2.

Chung†, S. T. L. & Tjan, B. S. (2009). Spatial-frequency and contrast properties of reading in central and peripheral vision. Journal of Vision, 9(9):16, 1-19, http://journalofvision.org/9/9/16/, doi:10.1167/9.9.16.

Nandy, A. S., & Tjan†, B. S. (2008). Efficient integration across spatial frequencies for letter identification in foveal and peripheral vision. Journal of Vision, 8(13):3, 1-20, I, doi:10.1167/8.13.3.

Zhou, J., Tjan, B. S., Zhou, Y., & Liu†, Z. (2008). Better discrimination for illusory than for occluded perceptual completions. Journal of Vision, 8(7):26, 1-17, http://journalofvision.org/8/7/26/, doi:10.1167/8.7.26.

Li X., Lu† Z.L., Tjan B.S., Dosher B.A., & Chu W., (2008) BOLD contrast response functions identify mechanisms of covert attention in early visual areas. PNAS. 105: 4068-4073.

Huang, X., Lu, H., Tjan, B. S., Zhou, Y., & Liu†, Z. (2007). Motion perceptual learning: When only task-relevant information is learned. Journal of Vision, 7(10):14, 1-10, http://journalofvision.org/7/10/14/, doi:10.1167/7.10.14.

Nandy A.S. & Tjan† B.S. (2007). The nature of letter crowding as revealed by first- and second-order classification images. Journal of Vision, 7(2):5, 1–26, http://journalofvision.org/7/2/5/, doi:10.1167/7.2.5.

Chung† S.T.L., & Tjan B.S. (2007). Shift in spatial scale in identifying crowded letters. Vision Research, 47(4):437-51.

Pelli† D. G., Cavanagh P., Desimone R., Tjan B.S. & Treisman, A. (2007). Crowding: Including illusory conjunctions, surround suppression, and attention. Journal of Vision,

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7(2):i, 1, http://journalofvision.org/7/2/i/, doi:10.1167/7.2.i. [unreviewed introduction to the Special Issue on Crowding]

Tjan† B.S., & Nandy A. S. (2006). Classification images with uncertainty. Journal of Vision, 6(4), 387-413, http://journalofvision.org/6/4/8/, doi:10.1167/6.4.8.

Tjan† B.S., Lestou V., & Kourtzi Z. (2006). Uncertainty and invariance in the human visual cortex. J Neurophysiol 96:1556-1568, doi:10.1152/jn.01367.2005.

Yue†, X., Tjan, B. S., & Biederman, I. (2006). What makes faces special? Vision Research, 46(22), 3802–3811. doi:10.1016/j.visres.2006.06.017

Lu H., Tjan, B. S., & Liu†, Z. (2006). Shape recognition alters sensitivity in stereoscopic depth discrimination. Journal of Vision, 6(1), 75-86, http://journalofvision.org/6/1/7/, doi:10.1167/6.1.7.

Tjan B. S., & Liu†, Z. (2005). Symmetry impedes symmetry discrimination. Journal of Vision, 5(10), 888-900, http://journalofvision.org/5/10/10/, doi:10.1167/5.10.10.

Tjan† B.S., Beckmann P.J., Roy R., Giudice N., Legge G.E. (2005) Digital Sign System for indoor wayfinding for the visually impaired. Proceedings of the First IEEE Workshop on Computer Vision Applications for the Visually Impaired, in conjunction with CVPR 2005, San Diego. IEEE Computer Society (CD-ROM).

Chung† S.T.L., Levi D.M.,Tjan B.S. (2005). Learning letter identification in peripheral vision. Vision Research 45(11):1399-1412.

Christou C.G., Tjan B.S., & Bülthoff. H.H. (2003). Extrinsic cues aid shape recognition from novel viewpoints. Journal of Vision 3(3):183-198.

Legge† G.E., Hooven T.A., Klitz T.S., Mansfield J.S., Tjan B.S. (2002). Mr. Chips 2002: new insights from an ideal-observer model of reading. Vision Research 42(18):2219-2234.

Chung† S.T.L., Legge G.E., & Tjan B.S. (2002). Spatial-frequency characteristics of letter identification in central and peripheral vision. Vision Research 42(18):2137-2152.

Chung† S.T.L., Levi D.M., Legge G.E., & Tjan B.S. (2002). Spatial-frequency properties of letter identification in amblyopia. Vision Research 42(12):1571-1581.

Tjan† B.S. (2001). Adaptive object representation with hierarchically-distributed memory sites. Advances in Neural Information Processing Systems 13, 66-72.

Tjan† B.S., & Ruppertsberg A.I. (2001). The pew illusion – a real-world example of misperceived slant. Perception 30(1), 125-128.

Newell† F.N., Ernst M.O., Tjan B.S., & Bülthoff. H.H. (2001). Viewpoint dependence in visual and haptic object recognition. Psychological Science 12(1) 37-42.

Tjan† B.S., & Legge G.E. (1998). The viewpoint complexity of an object recognition task. Vision Research 38 (15/16), 2335-50.

Legge† G.E., Klitz T.S., & Tjan B.S. (1997). Mr. Chips: An ideal observer model of reading. Psychology Review 104 (3), 524-553.

Dogru S., Rajan V., Rieck K., Slagle J.R., Tjan B.S., & WangY. (1996). A graphical data flow language for retrieval, analysis, and visualization. Journal of Visual Languages and Computing 7, 247-265.

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Tjan† B.S., Braje W.L., Legge G.E., & Kersten D. (1995). Human efficiency for recognizing 3-D objects in luminance noise. Vision Research 35 (21), 3053-69.

Braje† W.L., Tjan B.S., & Legge G.E. (1995). Human efficiency for recognizing and detecting low-pass filtered objects. Vision Research 35 (21), 2955-66.

Tjan† B.S., Breslow L., Dogru S., Rajan V., Rieck K., Slagle J.R., & Poliac M. (1993). A data-flow graphical user interface for querying a scientific database. In IEEE Symposium on Visual Languages, (pp. 49-54). IEEE Computer Society.

Book Chapters Tjan† B.S. (2002). Object Recognition. In Arbib M. (Ed.), The Handbook of Brain Theory

and Neural Networks, 2nd Ed. (pp. 788-792) Cambridge, MA: MIT Press. Klitz† T.S., Legge G.E., & Tjan B.S. (2000). Saccade planning in reading with central

scotomas: comparison of human and ideal performance. In A. Kennedy, R. Radach, D. Heller, & J. Pynte (Eds.), Reading as a perceptual process. New York: Elsevier.

Tjan† B.S. (1996) Ideal observer analysis of object recognition. Doctoral Thesis, Computer Science Department, University of Minnesota.

Tjan† B.S., Gardiner D., & Slagle J.R. (1992). Representing and reasoning with set referents and numerical quantifiers. In NagleT.E., Nalge J., Gerholz L., & Eklund P. (Eds.) Conceptual Structures – current research and practice. Ellis Horwood.

Gardiner† D., Tjan B.S., & Slagle J.R. (1992). Extending Conceptual Structures: Representation Issues and Reasoning Operations. In NagleT.E., Nalge J., Gerholz L., & Eklund P. (Eds.) Conceptual Structures – current research and practice. Ellis Horwood.

Invited Talks Form Vision without Fovea: image representation and gaze control. Psychology, Peking

University (12/17/2014) Form Vision without Fovea: image representation and gaze control. Chinese Academy of

Science (12/17/2014) Using an achiasmic human visual system to quantify the relationship between the fMRI

BOLD signal and neural response. IDG / McGovern Institute, Peking University (12/16/2014)

Quantifying the relationship between the fMRI BOLD signal and neuronal activity with a human subject borne without the optic chiasm. University of Texas at Austin (3/31/2014)

Quantifying the relationship between the fMRI BOLD signal and neuronal activity with an achiasmic human subject. Schepens Eye Research Institute, Harvard Medical School. (2/26/2014)

Form Vision without Fovea: image representation and gaze control. SUNY College of Optometry (2/25/2014)

Quantifying the relationship between the fMRI BOLD signal and neuronal activity with an achiasmic human subject. NYU (2/24/2014)

Iso-eccentric correlations in the human visual cortex – fingerprints of feedbacks. OSA Vision Meeting, University of Houston (10/2013)

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Relating fMRI BOLD signal to neuronal activity. University of California, Riverside(10/2013)

fMRI BOLD signal as a function of neuronal activity. Ohio State University (9/2010) Seeing in peripheral vision – a case of mistaken priors. HRL Laboratories (8/2013) Relating fMRI BOLD signal to neuronal activity in a human model. University of Hong

Kong (7/2013) Suboptimal Image Encoding in Peripheral Vision. Asia-Pacific Conference on Vision

(7/2013) fMRI BOLD response as a function of neuronal activity. Center for Cognitive

Neuroscience, UC Irvine (3/2013) Measuring the relationship between the fMRI BOLD response and neuronal activity from a

subject without the optic chiasm. University of Pennsylvania (2/2013) Effects of Image Content and Content-Selective Attention on the Form-Evoked BOLD

Response in the Ventral Visual Areas: A Linear Sum-of-Components Model. Thirty-Eighth Annual Interdisciplinary Conference (1/2013)

Why is object recognition difficult in peripheral vision? Cognitive Neural Systems Seminar Series. University of California, San Diego. (2011)

Object recognition in the Periphery. Department of Psychology, University of California, Riverside. (2011)

Recognizing objects in clutter. Third International Workshop on Shape Perception in Human and Computer Vision. ECCV (2010)

Neural mechanism of crowding. Stanford University. (2010) Neural mechanism of visual crowding. Joint Symposium on Neural Computation.

University of Southern California. (2010) Functional Magnetic Resonance Imaging of the Human Peripheral Vision. ARVO/AAO

Joint Symposium: Assessing the Structure and Function of the Visual System Using Novel Imaging Technologies. (2008)

Crowding in Peripheral Vision. Joint Symposium on Neural Computation. University of California, Irvine. (2008)

Crowding in Peripheral Vision. Department of Psychology, the University of Hong Kong (2008)

Crowding in Peripheral Vision. Department of Psychology, Peking University. (2008) A White Noise Method for Revealing Features and Feature Integration in the Periphery.

Peking Normal University (2008) What we can and cannot see with peripheral vision? Electrical and Computer Engineering,

University of Houston (2007) Integration of visual information into objects in normal and impaired vision. Presidential

Symposium. Association for Research in Otolaryngology (2007) Form vision in the periphery – it’s crowded. School of Optometry, UC Bekerley (2007) Form vision in the periphery. Psychology, Indiana University, Bloomington (2006)

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First- and second-order classification image analysis of crowding. Shiffrin Lab, Indiana University, Bloomington (2006)

Seeing what the mind’s eye saw – Using Classification Images to Uncover Higher-Order Visual Features. Fourth USC Annual Vision Symposium (2006)

Seeing shapes in the visual periphery. Harbor-UCLA Medical Center (2005) Uncertainty, signal-in-noise, and the stages of visual processing in cortex. Smith-Kettlewell

Eye Research Institute (2005) Form vision in the peripheral visual field. Department of Psychology, University of

Pennsylvania (2004) Object recognition by dynamic selection of hierarchically related representations. Invited

Symposium on Features of Object Recognition, International Congress of Psychology, Beijing, China (2004)

Invariance, Expertise, and the Dynamic Selection of Representations. International Workshop on Object Recognition, Attention, and Action, University of Kyoto, Kyoto, Japan (2004)

An fMRI method for identifying the sequential stages of processing in the ventral visual pathway. 11th Joint Symposium on Neural Computation (2004).

Abilities for encoding visual forms in foveal and peripheral visual fields. College of Optometry Seminar Series, University of Houston (2003)

Adaptive object representations. Center for Neuro-Engineering & Cognitive Science, University of Houston (2003)

Invariance, representations, and expertise. Perceptual Expertise Network 7 Workshop (2003)

Studying pattern vision with letters. Department of Psychology, UC Santa Barbara (2003) Characterizing pattern vision with letters. M.D./Ph.D. Program, Medical School, USC

(2002) Spatial frequency selectivity for letter identification. Vision Symposium, USC (2002) Adaptive Object Representation with Hierarchically-Distributed Memory Sites. Joint

Symposium on Neural Computation, Cal. Tech. (2002) Object Recognition by Hierarchically Organized Anarchy. Department of Computer

Science, USC. (2001) Object Recognition by Hierarchically Organized Anarchy. Department of Psychology,

UCLA. (2001) Object Recognition by Hierarchically Organized Anarchy. Department of Psychology,

Indiana University. (2001) Spatial Frequency Tuning for Letter Identification. School of Optometry, Indiana

University. (2001) Object Recognition by Anarchy. The Rutgers Series on Human and Computer Vision.

Rutgers University. (2000) What do objects tell us about object recognition? Department of Psychology, The Chinese

University of Hong Kong. (2000)

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What do objects tell us about object recognition? Department of Psychology, The University of Hong Kong. (2000)

What do objects tell us about object recognition? Department of Psychology, University of Southern California. (2000)

Studying human 3-D object recognition by studying the stimuli. Department of Psychology, University of Minnesota. (2000)

Measuring image-feature utilities for recognizing 3-D objects using ideal observer analysis. Department of Psychology, University of Pennsylvania. (1999)

The principle of sensory primacy: a framework for object recognition. Series on Human and Computer Vision. Rugters University, New Brunswick. (1999)

The principle of image primacy: A 'new' framework for object perception. Cognitive and Linguistic Sciences, Brown University. (1999)

The doctrine of image primacy for object recognition. Psychology Colloquium. Rugters University, Newark. (1998)

An image-based perspective on object recognition. Third Annual Cognitive Science Symposium – Face and Object Recognition: Common Underlying Mechanisms? University of California, Riverside. (1998)

Mr. Chips: An ideal observer model of reading. Fifth European Workship on Language Comprehension, Marseille, France. (1998)

Ideal observer analysis of object recognition. Vision Seminar. NEC Research Institute. (1996)

Conference Presentations Bao, P., Purington, C., & Tjan, B. S. (2014). Separating neuronal suppression from

hemodynamic suppression. Journal of Vision, 14(10), 1403–1403. doi:10.1167/14.10.1403

Chung, S., Bernard, J.-B., Kumar, G., Nandy, A., & Tjan, B. (2014). The two-dimensional shape of the crowding zone following macular lesions. Journal of Vision, 14(10), 768–768. doi:10.1167/14.10.768

Files, B. T., Baluch, F., Bao, P., Purington, C., & Tjan, B. S. (2014). Overlapping but non-interacting neural populations in early visual cortex of a human subject with no optic chiasm. Journal of Vision, 14(10), 685–685. doi:10.1167/14.10.685

Mazyar, H., & Tjan, B. (2014). Non-Foveating Saccades and Fixations. Journal of Vision, 14(10), 115–115. doi:10.1167/14.10.115

Olman, C. A., Bao, P., Engel, S. A., Grant, A. N., Purington, C., Qiu, C., … Tjan, B. S. (2014). Do hemifield representations co-opt ocular dominance column structure in achiasma? Journal of Vision, 14(10), 377–377. doi:10.1167/14.10.377

Ress, D., Beauchamp, M. S., Purington, C., Files, B. T., & Tjan, B. S. (2014). The representation of visual and somatosensory space in the superior colliculus of a human subject without an optic chiasm. Journal of Vision, 14(10), 1105–1105. doi:10.1167/14.10.1105

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Cunningham, S. I., Weiland, J. D., Lepore, N., Chai, Y., & Tjan, B. S. (2014). Tract-specific analysis of visual stream structural connectivity in late-blind patients with retinitis pigmentosa. ARVO Meeting Abstracts, 55(5), 5850.

Files, B. T., Baluch, F., Bao, P., Purington, C. & Tjan, B. S. (2013). SSVEP intermodulation as a marker of interaction within colocated visual representations in an achiasmatic subject. Program No. 639.22. 2013 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2013. Online.

Cunningham, S. I., Weiland, J. D., Bao, P., & Tjan, B. S. (2013). Correlation of functional and structural visual stream connectivity with V1 tactile-evoked BOLD responses in patients with retinitis pigmentosa. Program No. 550.10. 2013 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2013. Online.

Mazyar, H., & Tjan, B. S. (2013). Gaze control without the fovea. Program No. 364.01. 2013 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience, 2013. Online.

Bao, P., & Tjan, B. S. (2013). Effects of image content and content-selective attention on the form-evoked BOLD response in the ventral visual areas: a linear sum-of-components model. Journal of Vision, 13(9), 768–768. doi:10.1167/13.9.768

Millin, R., & Tjan, B. S. (2013). A forward model of multi-voxel pattern analysis in primary visual cortex. Journal of Vision, 13(9), 36–36. doi:10.1167/13.9.36

Shee, J. R., & Tjan, B. S. (2013). Sparse coding as a tool for gathering image statistics in peripheral vision. Journal of Vision, 13(9), 570–570. doi:10.1167/13.9.570

Shin, K., & Tjan, B. S. (2013). Crowding with invisible flankers - a reexamination. Journal of Vision, 13(9), 578–578. doi:10.1167/13.9.578

Tjan, B. S., Bao, P., & Purington, C. (2013). Identifying the relationship between fMRI BOLD response and neuronal activity with an achiasmatic human subject. Journal of Vision, 13(9), 1263–1263. doi:10.1167/13.9.1263

Bao, P., Purington, C., & Tjan, B. S. (2012). Separating of BOLD summation from neural summation in the early visual cortex of an achiasmatic subject. Program No. 568.17. 2012 Neuroscience Meeting Planner. New Orleans, LA: Society for Neuroscience, 2012. Online.

Bao, P., Purington, C., & Tjan, B. S. (2012). Overlap but not interact: fine grain organization of neural populations in the visual cortex of achiasmia revealed with long-term fMRI adaption. Journal of Vision, 12(9), 790–790. doi:10.1167/12.9.790

Cunningham, S. I., Weiland, J. D., Bao, P., & Tjan, B. S. (2012). Primary Visual Cortex Activation Responses to Tactile Stimulation in Late-Blind Individuals with Retinitis Pigmentosa. Journal of Vision, 12(9), 1327–1327. doi:10.1167/12.9.1327

Kwon, M., Ramachandra, C., Mel, B. W., & Tjan, B. S. (2012). Contour enhancement benefits peripheral vision task for older adults. Journal of Vision, 12(9), 94–94. doi:10.1167/12.9.94

Purington, C., Bao, P., & Tjan, B. S. (2012). Visual cortex representation of achiasmic retinal inputs. Journal of Vision, 12(9), 788–788. doi:10.1167/12.9.788

Tjan, B. S., Kwon, M., Millin, R., & Bao, P. (2012). Crowding modulates activity in V1. Journal of Vision, 12(9), 598–598. doi:10.1167/12.9.598

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Wallace, J. M., Chung, S. T. L., & Tjan, B. S. (2012). Crowding in individuals with age-related macular degeneration. Journal of Vision, 12(9), 336–336. doi:10.1167/12.9.336

Kwon, M., Bao, P., Millin, R., & Tjan, B. S. (2011) [Talk] Asymmetry in the spatial extent of crowding in the early visual areas. Program No. 851.12. 2011 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2011. Online.

Chung, S.T.L., Bernard, J.B., Kumar, G., Nandy, A.S., & Tjan, B. S. (2011) Re-referencing of saccadic eye movements and modifications of spatial properties at and around the PRL in people with AMD. Program No. 489.17. 2011 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience, 2011. Online.

Cunningham S., Weiland J.D. , Bao P., Tjan B.S. (2011) Visual cortex activation induced by tactile stimulation in late blind individuals with retinitis pigmentosa [Abstract]. In: IEEE Engineering in Medicine and Biology Conference (EMBC), Boston, MA.

Bao, P., Pantazis, D., & Tjan, B. S. (2011). A method to infer the retinotopy with landmark-based cortical surface co-registration [Abstract]. Journal of Vision, 11, 878-878. doi:10.1167/11.11.878

Millin, R., & Tjan, B. S. (2011). Efficient integration across spatial frequencies reflected in early visual areas [Abstract]. Journal of Vision, 11, 1179-1179. doi:10.1167/11.11.1179

Chiu, M. K., Wallace, J., Nandy, A. S., & Tjan, B. S. (2011). Peripheral crowding with unlimited viewing time [Abstract]. Journal of Vision, 11, 1154-1154. doi:10.1167/11.11.1154

Kwon, M., Nandy, A. S., & Tjan, B. S. (2011). [Talk] Changes in crowding zone at the eccentric retinal loci of subjects with simulated central scotoma [Abstract]. Journal of Vision, 11, 1140-1140. doi:10.1167/11.11.1140

Tjan, B. S., Kwon, M., & Nandy, A. S. (2011). Changes in oculomotor behavior induced by a simulated central scotoma [Abstract]. Journal of Vision, 11, 484-484. doi:10.1167/11.11.484

Shin, K., & Tjan, B. S. (2011). Crowding with invisible flankers [Abstract]. Journal of Vision, 11, 1158-1158. doi:10.1167/11.11.1158

Wallace, J. M., & Tjan, B. S. (2011). Letter-in-chaff: a response classification method for studying letter identification [Abstract]. Journal of Vision, 11, 1150-1150. doi:10.1167/11..111150

Tjan, B. S., & Bao, P. (2011) [Talk] Iso-eccentric organization of spontaneous activity in the human visual cortex exists in normal but not in blind subjects. 36th Annual Interdisciplinary Conference, Jackson Hole, Wyoming

Bao, P., Pantazis, D., Cunningham, S. I., Weiland J., & Tjan, B. S. (2010). Blindness destroys the iso-eccentric organization of spontaneous activities in the human visual cortex [Abstract]. Program No. 580.13. 2010 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience. Online.

Cunningham, S. I., Weiland J., Bao, P., & Tjan, B. S. (2010). Characterization of visual cortex activation responses to tactile stimuli in late-blind retinitis pigmentosa subjects using fmri [Abstract]. Program No. 371.4. 2010 Neuroscience Meeting Planner. San Diego, CA: Society for Neuroscience. Online.

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Cunningham, S. I., Tjan, B. S., Weiland, J. D. (2010) Development of Methods for fMRI in Retinal Prosthesis Subjects [Abstract]. Neural Inferences Conference. Long Beach.

Tjan, B. S., & Nandy, A. (2010). [Talk] Saccade-distorted image statistics explain target-flanker and flanker-flanker interactions in crowding [Abstract]. 2010 Vision Sciences Society. Journal of Vision, 10(7): 1350; doi:10.1167/10.7.1350

Nandy, A., & Tjan, B. S. (2010). [Talk] Crowding and cortical reorganization at and around the PRL: model and predictions [Abstract]. 2010 Vision Sciences Society.

Millin, R., Arman, A. C., Tjan, B. S. (2010) [Talk] Reduced Neural Activity with Crowding is Independent of Attention and Task Difficulty [Abstract]. 2010 Vision Sciences Society. Journal of Vision, 10(7): 1352; doi:10.1167/10.7.1352

Bao, P., & Tjan, B. S. (2010). [Talk] Task dependence and level of processing in category-specific regions of the ventral stream [Abstract]. 2010 Vision Sciences Society. Journal of Vision, 10(7): 980; doi:10.1167/10.7.980

Wallace, J. M., & Tjan, B.S. (2010). Object crowding [Abstract]. 2010 Vision Sciences Society. Journal of Vision, 10(7): 1334; doi:10.1167/10.7.1334

Shin, K., Wallace, J. M., & Tjan, B.S. (2010). Objects crowded by noise flankers [Abstract]. 2010 Vision Sciences Society. Journal of Vision, 10(7): 1336; doi:10.1167/10.7.1336

Qin, J., & Tjan, B.S. (2010). Size illusion and crowding [Abstract]. 2010 Vision Sciences Society. Journal of Vision, 10(7): 1337; doi:10.1167/10.7.1337

Bao, P., & Tjan, B. S. (2009). [Talk] Iso-eccentric organization of spontaneous activity in the human visual cortex [Abstract]. Program No. 404.10. 2009 Neuroscience Meeting Planner. Chicago, IL: Society for Neuroscience. Online.

Millin, R., Arman, A. C., Tjan, B. S. (2009) A low-level neural origin of visual crowding [Abstract]. Program No. 756.1. 2009 Neuroscience Meeting Planner. Chicago, IL: Society for Neuroscience. Online.

Nandy, A., & Tjan, B. (2009). Attention-gated image statistics and the development of lateral interactions in central and peripheral vision [Abstract]. Program No. 756.2. 2009 Neuroscience Meeting Planner. Chicago, IL: Society for Neuroscience. Online.

Wallace, J. M., & Tjan, B. (2009). Visual crowding for natural objects [Abstract]. Program No. 756.12. 2009 Neuroscience Meeting Planner. Chicago, IL: Society for Neuroscience. Online.

Tjan, B. S. (2009). [Talk] Three essential ingredients of crowding [Abstract]. Journal of Vision, 9(8): 988; doi:10.1167/9.8.988.

Bao, P., & Tjan, B. S. (2009). [Talk] Spatial organization of spontaneous activities in the human visual cortex [Abstract]. Journal of Vision, 9(8):736, 736a, http://journalofvision.org/9/8/736/, doi:10.1167/9.8.736.

Liu, Z., Thompson, B., & Tjan, B. (2009). An fMRI study of motion perceptual learning with suppressed and un-suppressed MT [Abstract]. Journal of Vision, 9(8):870, 870a, http://journalofvision.org/9/8/870/, doi:10.1167/9.8.870.

Chung, S., & Tjan, B. (2009). Response-triggered covariance analysis of letter features [Abstract]. Journal of Vision, 9(8):1000, 1000a, http://journalofvision.org/9/8/1000/, doi:10.1167/9.8.1000.

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Nandy, A., & Tjan, B. (2009). The fine spatial structure of crowding zones [Abstract]. Journal of Vision, 9(8):1001, 1001a, http://journalofvision.org/9/8/1001/, doi:10.1167/9.8.1001.

Tjan B.S., Nandy A.S. (2009). [Talk] A developmental theory of crowding. 34th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

Liu, Z., Thompson, B., Tjan, B.S. (2008) [Talk] Motion perceptual learning with suppressed and un-suppressed MT: an fMRI study. Program No. 615.5. 2008 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience. Online.

Nandy, A., Tjan, B.S. (2008) [Talk] A computational model of visual crowding. Program No. 811.2. 2008 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience. Online.

Bao, P., Tjan, B.S. (2008) Regularities of form-selective BOLD response in the human visual cortex. Program No. 853.10. 2008 Neuroscience Meeting Planner. Washington, DC: Society for Neuroscience. Online.

Nandy, A. S., & Tjan, B. S. (2008). [Talk] The origin of crowding zones [Abstract]. Journal of Vision, 8(6):969, 969a, http://journalofvision.org/8/6/969/, doi:10.1167/8.6.969.

Chung, S., Tjan, B., & Lin, Y. (2008). [Talk] Feature maps for letters [Abstract]. Journal of Vision, 8(6):970, 970a, http://journalofvision.org/8/6/970/, doi:10.1167/8.6.970.

Tjan, B. S., Nandy, A. S., & Chung, S. T. L. (2008). Crowding in the amblyopic fovea can be unlike crowding in the normal periphery [Abstract]. Journal of Vision, 8(6):439, 439a, http://journalofvision.org/8/6/439/, doi:10.1167/8.6.439.

Bao, P., Yue, X., & Tjan, B. S. (2008). BOLD signal response functions for object and face processing in noise [Abstract]. Journal of Vision, 8(6):46, 46a, http://journalofvision.org/8/6/46/, doi:10.1167/8.6.46.

Sun, G., Chung, S. T. L., & Tjan, B. S. (2008). Mechanisms of crowding and learning to "uncrowd" [Abstract]. Journal of Vision, 8(6):438, 438a, http://journalofvision.org/8/6/438/, doi:10.1167/8.6.438.

Tjan, B. & Nandy, A. (2007). [Invited talk] The nature of letter crowding as revealed by first- and second-order classification images. Symposium: “Classification Images in Vison Research.” Vision Sciences Society.

Nandy, A., & Tjan, B. (2007). [Talk] Optimal feature integration across spatial-frequencies in central and peripheral vision [Abstract]. Journal of Vision, 7(9):340, 340a, http://journalofvision.org/7/9/340/, doi:10.1167/7.9.340.

Lu, H., Liu, Z., & Tjan, B. (2007). [Talk] The importance of skeletal information in biological motion perception revealed by ideal observer analysis [Abstract]. Journal of Vision, 7(9):550, 550a, http://journalofvision.org/7/9/550/, doi:10.1167/7.9.550.

Lu, Z.-L., Li, X., Tjan, B. S., Dosher, B. A., & Chu, W. (2007). [Talk] Mechanisms of covert attention: External noise exclusion and stimulus enhancement in early visual areas [Abstract]. Journal of Vision, 7(9):783, 783a, http://journalofvision.org/7/9/783/, doi:10.1167/7.9.783.

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Li, X., Lu, Z.-L., Tjan, B. S., Dosher, B. A., & Chu, W. (2007). Attentional modulation of the BOLD-fMRI contrast response functions in early visual areas [Abstract]. Journal of Vision, 7(9):172, 172a, http://journalofvision.org/7/9/172/, doi:10.1167/7.9.172.

Busey, T., Schneider, B., Wyatte, D., DeLong, J., Burkhardt, A., & Tjan, B. (2007). Are inverted faces processed at a later stage? [Abstract]. Journal of Vision, 7(9):618, 618a, http://journalofvision.org/7/9/618/, doi:10.1167/7.9.618.

Bao, P., & Tjan, B. S. (2007). Super-summation with natural scenes – size more than matters [Abstract]. Journal of Vision, 7(9):963, 963a, http://journalofvision.org/7/9/963/, doi:10.1167/7.9.963.

Tjan, B. S., & Nandy, A. S. (2006). [Talk] Classification images of visual crowding. Fifth Annual Summer Interdisciplinary Conference.

Tjan, B. S., & Nandy, A. S. (2006). [Talk] 1st- & 2nd-Order Classification Image Analysis of Crowding [Abstract]. Perception, ECVP06 Supplement.

Tjan, B. S., & Nandy, A. S. (2006). [Talk] Hold it there and let's have a look: Extracting shift-invariance templates and sub-template features from signal-clamped classification images [Abstract]. Journal of Vision, 6(6), 1098a, http://journalofvision.org/6/6/1098/, doi:10.1167/6.6.1098.

Arman, A. C., Chung, S. T. L., & Tjan, B. S. (2006). [Talk] Neural correlates of letter crowding in the periphery [Abstract]. Journal of Vision, 6(6), 804a, http://journalofvision.org/6/6/804/, doi:10.1167/6.6.804.

Nandy, A. S., & Tjan, B. S. (2006). [Talk] Feature Integration Maps during crowding as revealed from covariance analysis of classification images [Abstract]. Journal of Vision, 6(6), 805a, http://journalofvision.org/6/6/805/, doi:10.1167/6.6.805.

Cheung, S.-H., Legge, G. E., Chung, S. T. L., & Tjan, B. S. (2006). [Talk] Target-flanker binding releases crowding [Abstract]. Journal of Vision, 6(6), 807a, http://journalofvision.org/6/6/807/, doi:10.1167/6.6.807.

Nandy A.S., Tjan B.S. (2006). Recovering the template of a system with position uncertainty. Society of Neuroscience.

Tjan, B. S., & Dang, S. (2005). [Talk] The spatial interaction zone of a shapeless noise flanker [Abstract]. Journal of Vision, 5(8), 227a, http://journalofvision.org/5/8/227/, doi:10.1167/5.8.227.

Cunningham, K. A., & Tjan, B. S. (2005). Spatial arrangement of irrelevant color in visual search [Abstract]. Journal of Vision, 5(8), 278a, http://journalofvision.org/5/8/278/, doi:10.1167/5.8.278.

Yue, X., Tjan, B., & Biederman, I. (2005). Matching complementary faces and blobs in the gabor domain by novices, experts, and an ideal observer [Abstract]. Journal of Vision, 5(8), 980a, http://journalofvision.org/5/8/980/, doi:10.1167/5.8.980.

Nezhad, M., Motamed, A., & Tjan, B. S. (2005). [Talk] Perceive the slow but pursue the fast – eye movement during shape-from-motion (SfM) with ambiguous stimuli [Abstract]. Journal of Vision, 5(8), 103a, http://journalofvision.org/5/8/103/, doi:10.1167/5.8.103.

Chung S.T.L. & Tjan B. S. (2005). Spatial-Frequency Properties of Reading in Central and Peripheral Vision. ARVO.

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Tjan B.S., Chung S.T.L. (2005). [Talk] Form vision in the periphery. 30th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

Tjan B.S. (2004) [Talk] Recovering the template in the face of uncertainty. NIPS (Neural Information Processing Systems) Workshops, Whistler, BC, Canada.

Tjan B.S., Chung S.T.L. (2004) Form vision in the periphery. Fall Vision Meeting, Rochester, NY.

Tjan B.S., He C., Chung S.T.L., & Schwartz N. (2004) Letter crowding in the periphery is best modeled by an increase equivalent noise. VSS.

He C. & Tjan B.S. (2004). What crowds a letter in the periphery? VSS. Chung S.T.L., Tjan B.S. (2004). Crowding: tuning to the wrong spatial-frequency channels.

VSS. Schwartz N., Tjan B.S. (2004). Spatial summation zone for gratings in natural scenes. VSS. Hall J., Tjan B.S., Liu Z., Lee C.K., Motamed A., & Nezhad M. (2004). Feature tracking in

a stereo-kinetic display. VSS Chung S.T.L., Levi, D.M., & Tjan B.S (2003). Channel for letter identification is affected

by spatial-frequency adaptation. American Academy of Optometry. Tjan B.S., Lestou V., Bülthoff H.H., & Kourtzi Z. (2003). [Talk] An fMRI method for

identifying the sequential stages of processing in the ventral visual pathway. VSS. Dang S., Tjan B.S. Chung S.T.L. (2003). Spatial phase related nonlinearity in alignment of

contours. VSS. Schwartz N, Tjan B.S., & Chung S.T.L. (2003). Spatial-frequency phase noise in central

and peripheral vision. VSS. Tjan, B.S., Lestou, V., Kourtzi, Z., Grodd W., & Bülthoff H.H. (2003). [Talk] Human

fMRI studies of visual processing in noise. 28th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

Tjan, B.S., Lestou, V., Kourtzi, Z., Grodd W., & Bülthoff H.H. (2002). [Talk] Human fMRI studies of visual processing in noise. Program No. 721.1. 2002 Abstracts Viewer/Itinerary Planner. Washington, DC: Society for Neuroscience. CD-ROM.

Tjan B.S., Chung S.T.L., & Levi, D.M. (2002). [Talk] How many functional factors does it take to explain perceptual learning? Perception, ECVP02 Supplement, http://www.perceptionweb.com/perception/ecvp02/0509.html

Tjan, B.S., Chung, S.T.L., & Legge, G.E. (2002). O letter channels, where art thou? Journal of Vision, 2(7), 31a, http://journalofvision.org/2/7/31/, DOI 10.1167/2.7.31. VSS.

Tjan B.S., Chung S.T.L., & Levi, D.M. (2002). [Talk] Limitation of ideal-observer analysis in understanding perceptual learning. Annual Meeting Abstract and Program Planner accessed at www.arvo.org. Association for Research in Vision and Ophthalmology. Abstract 2916.

Chung S.T.L. & Tjan B.S. (2002). [Talk] Shift in spatial scale in identifying crowded Letters. Annual Meeting Abstract and Program Planner accessed at www.arvo.org. Association for Research in Vision and Ophthalmology. Abstract 4788.

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Tjan B.S., Chung S.T.L., & Levi, D.M. (2002). [Talk] Limitation of ideal-observer analysis in understanding perceptual learning. 27th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

Chung S.T.L., Levi, D.M., & Tjan B.S. (2001). [Talk] Perceptual learning in peripheral vision. O. S. of America, “Vision and Color Meeting: Vision Sessions,” Opt. Express 9, 0- (2001), http://www.opticsexpress.org/abstract.cfm?URI=OPEX-9-8-0

Tjan B.S., Chung S.T.L, & Oliensis J. (2001). [Talk] Contour detour: how more could be less for crowding. ARVO. IOVS Suppl., 42 (4), s515.

Tjan, B.S., Chung, S.T.L., & Legge, G.E. (2001). [Talk] Why is letter identification not scale invariant? Journal of Vision, 1(3), 411a, http://journalofvision.org/1/3/411, DOI 10.1167/1.3.411. VSS.

Tjan B.S. (2001). [Talk] Object-recognition by anarchy. 26th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

Tjan B.S. (2000). Adaptive object representation with hierarchically-distributed memory sites. NIPS.

Ruppertsberg A.I., Rieger J.W., Deelwater M., Tjan B.S., & Buelthoff H.H. (2000) Physiological correlates of scene similarity in rapid visual perception. OPAM.

Tjan B.S. (2000). A multi-site memory model for 3-D object recognition. 41st Annual Meeting of the Psychonomic Society. Abstracts of the Psychonomic Society, 5, p. 72.

Tjan B.S. (2000). [Talk] A multi-site memory model for 3-D object recognition. ARVO. IOVS Suppl., 41 (4), s741.

Tjan B.S. & Papathomas T.V. (2000). Global spatial layout affects local disparity judgment. ECVP. Perception, 29, p. 88.

Ruppertsberg A.I., Tjan B.S., & Bülthoff. H.H. (2000). Local structure facilitates rapid scene perception. ECVP. Perception, 29, p. 76.

Papathomas T.V., & Tjan B.S. (2000). Three-dimensional representation of disparity-defined modal and amodal illusory contours. ARVO. IOVS Suppl., 41 (4), s737.

Tjan B.S., & Liu Z. (2000). [Talk] Symmetry impedes symmetry discrimination: arguing against a special-purpose symmetry perception mechanism. 25th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

Tjan B.S., Stankiewicz B.J., Legge G.E., & Jobling J. (1999). [Talk] Integration of color and luminance contours for object identification. OPAM.

Bülthoff H.H., Ernst M.O., Newell F.N., & Tjan B.S. (1999). Cross-modal transfer between vision and touch. Society for Neuroscience Annual Meeting.

Tjan B.S., Ruppertsberg A.I. & Bülthoff. H.H. (1999). Early use of color [and] local structure in rapid scene percpetion. ARVO. IOVS Suppl., 40 (4), s414.

Bülthoff H.H., Ernst M.O., Newell F.N., & Tjan B.S. (1999). [Talk] Visual and haptic recognition of objects: effects of viewpoint. ARVO. IOVS Suppl., 40 (4), s398.

Tjan B.S., Christou C.G., & Bülthoff. H.H. (1999). [Talk] Contribution of visual environment to novel-object recognition. 24th Annual Interdisciplinary Conference, Jackson Hole, Wyoming.

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Christou C.G., Tjan B.S., & Bülthoff. H.H. (1998). [Talk] Influence of spatial context on novel object recognition. OPAM.

Tjan B.S., & Liu Z. (1998). Near-bilateral symmetry impedes symmetry discrimination. 39th Annual Meeting of the Psychonomic Society. Abstracts of the Psychonomic Society, 3, p. 1.

Newell F.N., Ernst M.O., Tjan B.S., & Bülthoff. H.H. (1998). Visual and haptic recognition of objects: effects of transfer and viewpoint. 39th Annual Meeting of the Psychonomic Society. Abstracts of the Psychonomic Society, 3, p. 28.

Tjan B.S., Ruppertsberg A.I. & Bülthoff. H.H. (1998). Early use of configural information in rapid scene perception. ECVP. Perception, 27 (suppl.), p. 153.

Newell F.N., Ernst M.O., Tjan B.S., & Bülthoff. H.H. (1998). Visual and haptic recognition of unfamiliar three-dimensional objects: effects of transfer. ECVP. Perception, 27 (suppl.), p. 135.

Christou C.G., Tjan B.S., & Bülthoff. H.H. (1998). Why we placed the paper clip in the living room? ECVP. Perception, 27 (suppl.), p. 119.

Liu Z., & Tjan B.S. (1998). [Talk] Near-bilateral symmetry impedes symmetry discrimination. ECVP. Perception, 27 (suppl.), p. 6.

Tjan B.S., & Liu Z. (1998). Symmetry discrimination of faces. ARVO. IOVS Suppl., 39 (4), s170.

Christou C.G., Tjan B.S., & Bülthoff. H.H. (1998). [Talk] Old paperclips, new context. ARVO. IOVS Suppl., 39 (4), s853.

Stankiewicz B.J., Tjan B.S., Legge G.E., Kersten D., & Braje W.L. (1998). The role of view uncertainty in object recognition efficiency. ARVO. IOVS Suppl., 38 (4), s855.

Tjan B.S., & Legge G.E. (1997). [Talk] The viewpoint complexity of an object recognition task. Workshop on Object Perception and Memory (OPAM).

Tjan B.S., Kersten D. & Braje W.L. (1997). Inherent luminance invariance in face recognition. ARVO. IOVS Suppl., 38 (4), s1002.

Tjan B.S., & Legge G.E. (1996). [Talk] Intrinsic viewpoint invariance of 3-D objects. ARVO. IOVS Suppl., 37 (3), s1125.

Tjan B.S., Legge G.E., & Braje W.L. (1995). Quantifying stimulus information for recognition. ARVO. IOVS Suppl., 36 (4), s670.

Tjan B.S., Braje W.L., & Legge G.E. (1994). Spatial uncertainty in human object recognition. ARVO. IOVS Suppl., 35 (4), 1626.

Tjan B.S., Braje W.L., & Legge G.E. (1993). [Talk] Human efficiency for object recognition can be higher than for object detection. ARVO. IOVS Suppl., 34 (4), 1131.

Braje W.L., Tjan B.S., & Legge G.E. (1992). Human efficiency in the recognition of low-pass filtered objects. ARVO. IOVS Suppl., 33 (4), 958.

Tjan B.S., Legge G.E., Braje W.L., & Kersten D. (1991). [Talk] Human efficiency in the use of shape cues in object recognition. Annual Meeting of the Optical Society of America (OSA). Optics and Photonics News Suppl., 2 (9), 80.

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Tjan B.S., Gardiner D., & Slagle J.R. (1990). [Talk] Direct Inference Rules for Conceptual Graphs with Extended Notation. Proceedings of the Fifth Annual workshop on Conceptual Structures, L Gerholz and P Eklund Eds. Available from AAAI.

Gardiner D., Tjan,B.S. & Slagle J.R. (1989). [Talk] Extended Conceptual Structure Notation. Proceedings of the Fourth Annual Workshop on Conceptual Structures, J Nagle and T Nagle Eds. Available from AAAI.

Tjan B.S., & Slagle J.R. (1988). [Talk] A Conceptual Structure Semantic Theory Based on a Semantic Game with Partial Information. Proceedings of the Third Annual Workshop on Conceptual Graphs. Available from the AAAI.

PROFESSIONAL AFFILIATIONS

Society of Neuroscience Vision Sciences Society Association for Research in Vision and Ophthalmology Psychonomic Society Honor Society in Computer Science Upsilon Pi Epsilon Honor Society Phi Eta Sigma Association for Computing Machinery (1984 – 1997) American Assoc. for Artificial Intelligence (1987 – 1997) IEEE Computer Society (1985 – 1997)