Vision

Front 1

vergence movements

Back 1

keep eye fixed on same target, on corresponding parts of the two retinas

Front 2

saccadic movements

Back 2

the rapid, jerky movement of the eyes used in scanning a visual scene

Front 3

pursuit movement

Back 3

maintain an image of a moving object on the fovea

Front 4

acommadation

Back 4

adjustment of the lens
-changes in thickness

Front 5

fovea

Back 5

region for most acute vision

Front 6

order for eye parts

Back 6

photoreceptor synaps with bipolar, ganglion, axons go through optic nerves, brain

Front 7

horizontal cells

Back 7

photoreceptors and the outerprocesses of the bipolar cells

Front 8

amacrine

Back 8

ganglion cells and bipolar cells connect

Front 9

lamella

Back 9

contain rods and cones

Front 10

what makes photoreceptors

Back 10

opsin (protein) retinal (lipid)

Front 11

rhodopsin

Back 11

a particular opsin found in rods

Front 12

GMP

Back 12

-usually held open, less polarized
-continually release glutamate when light does not fall on them

Front 13

transducin

Back 13

G protein activated when light hits cell

Front 14

process of seeing

Back 14

1. light strikes rhodopsin
2. rhodopsin molecule splits,retinal binds with and activates transducin
3. transducin activates phospdie.
4. channel closes
5. cation enters the cell and there is a hyperpolarization

Front 15

actual process

Back 15

1. light hits--> makes hyperpolar
2. reduction causes depolarizations
3. goes to ganglion and excites

Front 16

dorsal geniculate nucleus

Back 16

1. recieves imputs from the retina and projects to the primary visual cortex

Front 17

magnocelluar

Back 17

information necessary for the perception of form, movement, depth, and small differences in brightness

Front 18

parvocellular

Back 18

outer layer
perception of color and fine details

Front 19

koniocellular

Back 19

sublayer
blue wave lengths

Front 20

primary visual cortex/straite cortex

Back 20

surounds the calcarine fissure

Front 21

ciliary muscles

Back 21

control lens

Front 22

at periphery

Back 22

many individual receptors converge on a single ganglion

Front 23

protanopia

Back 23

red and green hues are confused
-red cones are filled with green opsin

Front 24

deuteranopia

Back 24

green cones filled with red cone opsin

Front 25

tritanopia

Back 25

short wave lengths are confused

Front 26

complementary

Back 26

form together to make white

Front 27

spatial frequency

Back 27

the relative width of the bands in a sine wave grating, measure in cycles per degree of visual angle

Front 28

cytochrome oxidase (CO) blob

Back 28

central region of a module of the primary visual cortex, revealed by a stain for cytochrome, part of the parvo
- information from color sensitive through lateral geniculate nuclues to these CO blobs

Front 29

outside CO blobs

Back 29

sensitivity to orientation, movement, spacial frequency, disparity... NO color

Front 30

striate cortex

Back 30

receives visual information, then sends info to visual ass. area then to the extrastriate cortex (responds to particular feature of visual

Front 31

optic flow

Back 31

the complex motion of points in the visual field, provides relative distance about the distance and direction of movement