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Figure 9-1

Figure 9-2. Time [ms] Amplitude [deg] Amplitude [deg]. Eye Velocity [deg/s]. V. pk. D [deg]. 0 50 100 0 10 20 30 40 0 10 20 30 40.

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Figure 9-1






Presentation on theme: "Figure 9-1"— Presentation transcript:

Slide1

Figure 9-1Slide2

Figure 9-2

Time [ms] Amplitude [deg] Amplitude [deg]

Eye Velocity [deg/s]

V

pk

D [deg]

0 50 100 0 10 20 30 40 0 10 20 30 40

0

500

7

o

18

o

27

o

0

45

60

1

5

k

= 1.65

S < 0.9

S > 1.1

0.9<S < 1.1

slow saccades

fast

saccades

A

B

C

slow + fast

saccadesSlide3

Figure 9-3Slide4

Figure 9-4

S

accades

Abducens

s

pike trains

PSTH

-300 -200 -100 0 100 200 300 400 ms

Pulse

Slide

Step

Step

Fixate

Fixate

SaccadeSlide5

Figure 9-5

M

otor

Plan

Neural

Integrator

Pulse

Scaling

Pulse

Slide

Step

PLANT

Slide

Nonlinear

Pulse Generator

f

eedback

INPUT

OUTPUTSlide6

Figure 9-6

SC

motor plan

m

e

(t)

v

(t)

+

-

m

e

v

(t)

t

o PSG

Pulse

ΔE

v

(t)

v

elocity feedback

MLB Pulse Generator

LLBNSlide7

Figure 9-7

H

V

A

C

BSlide8

Figure 9-8

10

0

-10

10

0

-10

0 10 20 0 10 20

Horizontal eye position [deg]

Vertical eye position [deg]

Single

Double

F

F

F

F

T

1

T

2

T

1

T

2

T

1

T

2

T

1

T

2

∆Φ=30˚

∆Φ=90˚

A

B

C

DSlide9

G

S

E

H

H

S

5 deg

100 ms

ΔE

H

ΔH

S

ΔG

S

H

ON

G

ON

G

OFF

H

OFF

Vestibular

Ocular Reflex

VOR

ON

Gaze Shift

Head

Movement

Eye

Saccade

VOR

ON/OFF

VOR

OFF

Drift (~2˚)

Eye End

Position

Figure 9-9Slide10

Figure 9-10

E

H

ΔG

Legend:

GM = gaze motor error

HM = head motor error

DEP = desired eye position

l

imit = Oculomotor range

EM = eye motor error

DEV = desired eye velocity

EV = eye velocity

HV = head velocity

EP = eye position

SSC = semicircular canals

OMR

hor

ver

H

S

ΔHSlide11

Figure 9-11Slide12

Figure 9-12Slide13

Figure 9-13Slide14

X

L

X

R

U

L

U

R

U

ΔU

U

-ΔU

Figure 9-14