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7. Discussion & Conclusion 5. Exp 1: English. Linear Word Order vs Subjecthood First look at real-time production of questions Planning is structurally incremental Speakers start with syntactic roles even when it conflicts with linear word order No evidence covert dependencies formulated in the same way as overt dependencies No evidence information focus affects eye-movements during message formulation; Exp 1 results not confounded by focus In line with prior work showing late emergence of discourse-pragmatic effects in production [8] 2. Current Study Research Question: How do linear word order and subjecthood interact to inform the starting point of message formulation? English object wh-questions can tease apart linearity & subjecthood did the nurses tickle? 3. Hypotheses & Predictions REFERENCES: [1] Levelt, 1989; Bock and Levelt, 1994 [2] Gleitman et al., 2007; Brown-Schmidt & Konopka, 2008 [3] Griffin & Bock, 2000 [4] Kuchinsky, 2011; Konopka ,2012 [5] Griffin & Bock, 2000 [6] Myachykov et al., 2011 [7] Norcliffe et al., 2015; Sauppe et al., 2013 [8] Ganuschak et al., 2014, 2017 ACKNOWLEDGEMENTS: [1] Student Opportunities for Academic Research (USC), Patrice Zhao [2] Russell Endowed Fellowship (USC) [3] CEDL Travel Grant (LSA) What can wh-questions tell us about real-time language production? Evidence from English and Mandarin Monica Do {[email protected]} Elsi Kaiser {[email protected]} Pengchen Zhao {[email protected]} Department of Linguistics, University of Southern California, Los Angeles, USA LSA, Salt Lake City, Utah, January 4-7, 2018 4. Experiment Design Language production, like comprehension, is incremental [1] When describing an image, speakers: (1) Apprehend Scene à (2) Formulate Message à (3) Grammatically Assemble Message/Select Lexical Items à (4) Phonologically Encode Message à (5) Begin Articulation What factors determine where we start incrementally formulating messages? Linear Accounts: Start with most accessible lexical concept; mention that first (e.g. as the subject in English). [2] Structural Accounts: Start with subject of the sentence; insert relevant lexical concept into the ‘subject slot’ [3] Multi-factorial Accounts: Production varies due to accessibility and structure [4] How do we tease apart these accounts if subjects are often the first arguments in a sentence? Active vs Passives: Grammatical (not thematic) roles drive message formulation, but still subject-initial [5] Free word order: Russian, Finnish [6] || Verb-initial: Tzeltal, Tagalog [7] But, results complicated by discourse and/or morphological factors 1. Introduction Participants first saw sentence type cue, then saw image; produced the cued sentence type Statement (S) Object Wh-Question (Q) Verbs indicated by instruments (e.g. feather), instrument location indicated subject character 33 targets; 30 fillers. Familiarization session before experiment Measured Proportion of fixations to subject, object and verb, & Sub- Obj Difference Scores Declaratives The nurses tickled the chefs. Object Wh-Questions Which chefs did the nurses tickle? Linear Account: Linearly first word Subject Object Structural Account: Subject Subject Subject Multi-Factorial: Both interact Subject ????? 6. Exp 2: Mandarin. Linear Word Order vs Information Focus Speakers (n=30) look to verb first to determine Subj/Obj Differences between decl & ques emerge ~400ms Differences become significant ~600ms Subj-Obj difference scores in declaratives larger than in object wh-questions (|z|= 2.67) Declaratives Questions 0 200 400 600 800 1000 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Time(ms) from Image Onset Proportion of Fixations Subj Obj Shaded areas indicate 95% confidence interval Region Subj Obj Verb Speakers look to verb first to determine Subj/Obj characters Decl and ques do not differ 200-1000ms after image onset Subj-Obj difference scores do not differ (|z|s < 1.4) Key Pattern: Speakers fixate subject in both decl & ques; do not consider object in either Research Questions: (1) To what extent did information focus drive competitive looks to the object in Exp 1 (English)? (2) Is planning different for overt vs covert dependencies? Mandarin Chinese (Subject -Verb-Object) Wh-questions and declaratives have the same linear word order Declarative: 护士 枪毙了 The nurses shot the chefs. Object Wh-Question: 护士 枪毙了 哪个厨? The nurses shot which chefs? Eye-movements differences cannot be due to surface word order Native Mandarin speakers (n=35) Exp 2 conducted in Mandarin; items differed to account for lexical differences Key Pattern: Speakers look to the subject before object in decl & ques (~400ms), but consider the object more in ques than in decl Message formulation modulated by syntactic structure Decl: Rapid rise in looks to subject only ~400ms Ques: Rise in looks to subject & object ~400ms How do linear word order and subjecthood interact? They are separable, competitive effects Subjecthood is privileged over linear word order during message formulation But, linear word order is not ruled out: It competes with subjecthood But, Linear Word Order or Information Focus? wh-words are informationally focused elements Possible Alternative Account: Information focus drove competitive looks to object wh-phrase in English questions. Fig2: Eye-Movements After Message Formulation After window of interest, fixation patterns reflect linear word order, as expected Tight gaze-to-speech coordination: Speakers look to the to-be-mentioned image before naming it Decl: Subj planned before speech onset Ques: Obj planned before speech onset Declaratives Questions 1600 1400 1200 1000 800 600 400 200 0 200 400 600 800 1000 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Time(ms) Aligned To Speech Onset Proportion of Fixations Do speakers generally behave like we expect them to? Shaded areas indicate 95% confidence interval Region Subj Obj Verb Declaratives Questions 0 200 400 600 800 1000 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Time(ms) from Image Onset Proportion of Fixations Declaratives Questions 1600140012001000 800 600 400 200 0 200 400 600 800 1000 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Time(ms) Aligned to Speech Onset Proportion of Looks Fig4: Eye-Movements After Message Formulation After window of interest, fixation patterns reflect linear word order, as expected Tight gaze-to-speech coordination: Speakers look to the to-be-mentioned image before naming it Decl & Ques show same pattern: Subj planned before speech onset Message Formulation is Multi-Factorial Agent Linear word order Subjecthood is privileged Some other factors can still play a role But not all in the same way Subject Information focus? Fig1: Eye-Movements Immediately After Image Onset Fig3: Eye-Movements Immediately After Image Onset Subj Obj Do speakers generally behave like we expect them to?

Monica Do [email protected] Elsi Kaiser [email protected] ... · 7. Discussion & Conclusion 5. Exp 1: English. Linear Word Order vs Subjecthood • First look at real-time production

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Page 1: Monica Do monicado@usc.edu Elsi Kaiser emkaiser@usc.edu ... · 7. Discussion & Conclusion 5. Exp 1: English. Linear Word Order vs Subjecthood • First look at real-time production

7.Discussion&Conclusion

5.Exp 1:English.LinearWordOrdervsSubjecthood

• Firstlookatreal-timeproductionofquestions• Planningisstructurallyincremental• Speakersstartwithsyntacticrolesevenwhenitconflictswithlinearwordorder

• Noevidencecovertdependenciesformulatedinthesamewayasovertdependencies

• Noevidenceinformationfocusaffectseye-movementsduringmessageformulation;Exp 1resultsnotconfoundedbyfocus• Inlinewithpriorworkshowinglateemergenceofdiscourse-pragmaticeffectsinproduction[8]

2.CurrentStudy• ResearchQuestion:Howdolinearwordorderandsubjecthood interacttoinformthestartingpointofmessageformulation?

• Englishobjectwh-questionscanteaseapartlinearity&subjecthood

didthenursestickle?

3.Hypotheses&Predictions

REFERENCES:[1] Levelt,1989;BockandLevelt,1994[2] Gleitman etal.,2007;Brown-Schmidt&Konopka,2008[3] Griffin &Bock,2000[4] Kuchinsky,2011;Konopka ,2012[5] Griffin &Bock,2000[6]Myachykov etal.,2011[7] Norcliffe etal.,2015;Sauppe etal.,2013[8] Ganuschak etal.,2014,2017ACKNOWLEDGEMENTS:[1] StudentOpportunitiesforAcademicResearch(USC),PatriceZhao[2] RussellEndowedFellowship(USC)[3] CEDLTravelGrant(LSA)

Whatcanwh-questionstellusaboutreal-timelanguageproduction?EvidencefromEnglishandMandarinMonicaDo {[email protected]}😺 Elsi Kaiser {[email protected]}😺 Pengchen Zhao {[email protected]}DepartmentofLinguistics,UniversityofSouthernCalifornia,LosAngeles,USALSA,SaltLakeCity,Utah,January4-7,2018

4.Experiment Design

• Languageproduction,likecomprehension,isincremental[1]• Whendescribinganimage,speakers:(1)ApprehendSceneà (2)FormulateMessageà (3)GrammaticallyAssembleMessage/SelectLexicalItemsà(4)PhonologicallyEncodeMessageà (5)BeginArticulation

• Whatfactorsdeterminewherewestartincrementallyformulatingmessages?• LinearAccounts: Startwithmostaccessiblelexicalconcept;mentionthatfirst(e.g.asthesubjectinEnglish).[2]

• StructuralAccounts:Startwithsubjectofthesentence;insertrelevantlexicalconceptintothe‘subjectslot’[3]

• Multi-factorialAccounts:Productionvariesduetoaccessibilityandstructure[4]

• Howdoweteaseaparttheseaccountsifsubjectsareoftenthefirstargumentsinasentence?• ActivevsPassives:Grammatical(notthematic)rolesdrivemessageformulation,butstillsubject-initial[5]

• Freewordorder:Russian,Finnish[6]||Verb-initial:Tzeltal,Tagalog[7]• But,resultscomplicatedbydiscourseand/ormorphologicalfactors

1.Introduction

• Participantsfirst sawsentencetypecue,then sawimage;producedthecuedsentencetype

Statement(S) ObjectWh-Question(Q)

• Verbsindicatedbyinstruments(e.g.feather),instrumentlocationindicatedsubjectcharacter

• 33targets;30fillers.Familiarizationsessionbeforeexperiment• MeasuredProportionoffixationstosubject,objectand verb,&Sub-Obj DifferenceScores

DeclarativesThenursestickledthechefs.

ObjectWh-QuestionsWhichchefsdidthenurses tickle?

LinearAccount:Linearlyfirstword Subject ObjectStructuralAccount:

Subject Subject SubjectMulti-Factorial:Bothinteract Subject ?????

6.Exp 2:Mandarin.LinearWordOrdervsInformationFocus

• Speakers(n=30)looktoverb firsttodetermineSubj/Obj• Differencesbetweendecl &quesemerge~400ms• Differencesbecomesignificant~600ms• Subj-Obj differencescoresindeclarativeslarger thaninobjectwh-questions(|z|=2.67)

Decla

rativ

esQ

uest

ions

0 200 400 600 800 1000

0.00.10.20.30.40.50.60.70.8

0.00.10.20.30.40.50.60.70.8

Time(ms) from Image Onset

Prop

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Subj

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Shaded areas indicate 95% confidence interval

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Region Subj Obj Verb

• Speakerslooktoverb firsttodetermineSubj/Obj characters• Decl andquesdonotdiffer200-1000msafterimageonset• Subj-Obj differencescoresdonotdiffer(|z|s <1.4)• KeyPattern:Speakersfixatesubjectinbothdecl &ques;donotconsiderobject ineither

• ResearchQuestions:(1)TowhatextentdidinformationfocusdrivecompetitivelookstotheobjectinExp 1(English)?(2) Isplanningdifferentforovertvscovertdependencies?

• MandarinChinese(Subject-Verb-Object)• Wh-questionsanddeclarativeshavethesamelinearwordorderDeclarative:护士们 枪毙了 厨师。Thenurses shotthechefs.ObjectWh-Question:护士们 枪毙了 哪个厨师?Thenurses shotwhichchefs?

• Eye-movementsdifferencescannot beduetosurfacewordorder

• NativeMandarinspeakers(n=35)• Exp 2conductedinMandarin;itemsdifferedtoaccountforlexicaldifferences

• KeyPattern:Speakerslooktothesubject beforeobject indecl &ques(~400ms),butconsidertheobject moreinquesthanindecl

• Messageformulationmodulatedbysyntacticstructure• Decl: Rapidriseinlookstosubjectonly~400ms• Ques: Riseinlookstosubject&object~400ms

• Howdolinearwordorderandsubjecthoodinteract?• Theyareseparable,competitiveeffects• Subjecthood isprivileged overlinearwordorderduringmessageformulation• But,linearwordorderisnotruledout:Itcompeteswithsubjecthood

• But,LinearWordOrderorInformationFocus?• wh-wordsareinformationallyfocused elements• PossibleAlternativeAccount:Informationfocusdrovecompetitivelookstoobjectwh-phraseinEnglishquestions.

Fig2:Eye-MovementsAfter MessageFormulation

• After windowofinterest,fixationpatternsreflectlinearwordorder,asexpected• Tightgaze-to-speechcoordination:Speakerslooktotheto-be-mentionedimagebeforenamingit• Decl: Subjplannedbeforespeechonset• Ques: Obj plannedbeforespeechonset

Decla

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−1600−1400−1200−1000 −800 −600 −400 −200 0 200 400 600 800 1000

0.10.20.30.40.50.60.70.8

0.10.20.30.40.50.60.70.8

Time(ms) Aligned To Speech Onset

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Dosp

eakersgen

erallybeh

avelikeweexpe

ctth

emto

?

Shaded areas indicate 95% confidence interval

Decla

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0 200 400 600 800 1000

0.00.10.20.30.40.50.60.70.8

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clara

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−1600−1400−1200−1000 −800 −600 −400 −200 0 200 400 600 800 1000

0.00.10.20.30.40.50.60.70.8

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Time(ms) Aligned to Speech Onset

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Fig4:Eye-MovementsAfter MessageFormulation

• After windowofinterest,fixationpatternsreflectlinearwordorder,asexpected• Tightgaze-to-speechcoordination:Speakerslooktotheto-be-mentionedimagebeforenamingit• Decl &Quesshowsamepattern: Subjplannedbeforespeechonset

MessageFormulationisMulti-Factorial

Agent Linearwordorder

Subjecthood isprivileged

Someotherfactorscanstillplayarole

Butnotallinthesameway

Subject

Informationfocus?

Fig1:Eye-MovementsImmediatelyAfter ImageOnset

Fig3:Eye-MovementsImmediatelyAfterImageOnset

Subj

Obj

Dosp

eakersgen

erallybeh

avelikeweexpe

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emto

?