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Orientation selectivity in V1 of alert monkeys. Moshe Gur 1,2 , Igor Kagan 1,2 , Max Snodderly 2. 1 Dept. of Biomedical Engineering, Technion, Haifa, Israel; 2 Schepens Eye Research Institute, Boston, USA. Supported by NIH EY12243 and Fund 130372 for the Promotion of Research at the Technion. - PowerPoint PPT Presentation
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Orientation selectivity in V1 of alert monkeys
Moshe Gur1,2, Igor Kagan1,2, Max Snodderly2
1Dept. of Biomedical Engineering, Technion, Haifa, Israel; 2Schepens Eye Research Institute, Boston, USA
Supported by NIH EY12243 and Fund 130372 for the Promotion of Research at the Technion
0 45 90 135 1800
50
100
150A layer 2/3
bw 13.5 degcv 0.13ongoing 0 spk/s
0 45 90 135 1800
50
100B layer 4A
bw 58 degcv 0.68ongoing 13 spk/s
0 45 90 135 1800
50
100
150C layer 4B
bw 15 degcv 0.14ongoing 0 spk/s
0 45 90 135 1800
100
200
300D layer 4Ca
bw 41 degcv 0.68ongoing 11 spk/s
0 45 90 135 1800
50
100E layer 4Cm
bw 14.5 degcv 0.11ongoing 0 spk/s
0 45 90 135 1800
100
200F layer 4Cb
bw 79 degcv 0.83ongoing 21 spk/s
0 45 90 135 1800
50
100
150G layer 5
bw 9 degcv 0.44ongoing 0 spk/s
0 45 90 135 1800
50
100
150H layer 5
bw 8.5 degcv 0.12ongoing 0 spk/s
0 45 90 135 1800
100
200I layer 6
bw 36.5 degcv 0.65ongoing 11 spk/s
Tilt (deg)
Re
spo
nse
(sp
ike
s/s)
0 45 90 135 1800
50A layer 2/3
bw 13.5 degcv 0.13ongoing 0 spk/s
0 45 90 135 1800
10
20B layer 4A
bw 58 degcv 0.68ongoing 13 spk/s
0 45 90 135 1800
20
40C layer 4B
bw 15 degcv 0.14ongoing 0 spk/s
0 45 90 135 1800
50
100D layer 4Ca
bw 41 degcv 0.68ongoing 11 spk/s
0 45 90 135 1800
5
10
15E layer 4Cm
bw 14.5 degcv 0.11ongoing 0 spk/s
0 45 90 135 1800
20
40F layer 4Cb
bw 79 degcv 0.83ongoing 21 spk/s
0 45 90 135 1800
10
20G layer 5
bw 9 degcv 0.44ongoing 0 spk/s
0 45 90 135 1800
10
20H layer 5
bw 8.5 degcv 0.12ongoing 0 spk/s
0 45 90 135 1800
10
20
30I layer 6
bw 36.5 degcv 0.65ongoing 11 spk/s
Tilt (deg)
Re
spo
nse
(sp
ike
s/s)
Mea
n fi
ring
rat
e
Pea
k fi
ring
rat
e
0 20 40 60 80 1000
20
40
60
Bandwidth (deg)
Nu
mb
er
of c
ells
0 20 40 60 80 1000
50
100
Pe
rce
nta
ge
of c
ells
0 0.2 0.4 0.6 0.8 10
25
50
Circular variance
Nu
mb
er
of c
ells
cells with 0 ongoingcum. plot (%) all cells
0 0.2 0.4 0.6 0.8 10
50
100
Pe
rce
nta
ge
of c
ells
0 20 40 60 80 1000
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
Bandwidth (deg)
Cir
cula
r va
ria
nce
0 30 60 900
20
40
60
80
100
CRF (minarc)
Ba
nd
wid
th (
de
g)
0 30 60 900
0.2
0.4
0.6
0.8
1
CRF (minarc)
Cir
cula
r va
ria
nce
0 30 60 900
20
40
60
80
100
INC (minarc)
Ba
nd
wid
th (
de
g)
0 30 60 900
0.2
0.4
0.6
0.8
1
INC (minarc)
Cir
cula
r va
ria
nce
0 30 60 900
20
40
60
80
100
DEC (minarc)
Ba
nd
wid
th (
de
g)
0 30 60 900
0.2
0.4
0.6
0.8
1
DEC (minarc)
Cir
cula
r va
ria
nce
10-1
100
101
102
0
20
40
60
80
100
Ongoing activity (spikes/s)B
an
dw
idth
(d
eg
)
291 cells
10-1
100
101
102
0
0.2
0.4
0.6
0.8
1
Ongoing activity (spikes/s)
Cir
cula
r va
ria
nce
-0.5 0 0.5 10
20
40
60
80
100
Overlap indexB
an
dw
idth
(d
eg
)
218 cells
-0.5 0 0.5 10
0.2
0.4
0.6
0.8
1
Overlap index
Cir
cula
r va
ria
nce
0 0.5 1 1.5 20
20
40
60
80
100
Relative modulation (max RM)
Ba
nd
wid
th (
de
g)
0 0.5 1 1.5 20
0.2
0.4
0.6
0.8
1
Relative modulation (max RM)
Cir
cula
r va
ria
nce
0 0.5 1 1.5 20
20
40
60
80
100
Relative modulation (max harm)
Ba
nd
wid
th (
de
g)
0 0.5 1 1.5 20
0.2
0.4
0.6
0.8
1
Relative modulation (max harm)
Cir
cula
r va
ria
nce
0 0.2 0.4 0.6 0.8 10
20
40
60
80
100
Directionality indexB
an
dw
idth
(d
eg
)
309 cells
0 0.2 0.4 0.6 0.8 10
0.2
0.4
0.6
0.8
1
Directionality index
Cir
cula
r va
ria
nce
0 30 60 90
6
5
4Cb
4Cm
4Ca
4B
4A
2/3
Bandwidth (deg)
Co
rtic
al l
aye
r
165 cells
0 0.2 0.4 0.6 0.8 1
6
5
4Cb
4Cm
4Ca
4B
4A
2/3
Circular variance
Co
rtic
al l
aye
r
165 cells
0 10 20 30 40 50 60
6
5
4Cb
4Cm
4Ca
4B
4A
2/3
CRF
Co
rtic
al l
aye
r
106 cells
10-1
100
101
102
6
5
4Cb
4Cm
4Ca
4B
4A
2/3
Ongoing activity +0.1 (spikes/s)
Co
rtic
al l
aye
r
151 cells
0 0.2 0.4 0.6 0.8 1
6
5
4Cb
4Cm
4Ca
4B
4A
2/3
Directionality index
Co
rtic
al l
aye
r
158 cells
