Vision Flashcards Preview

Psyc > Vision > Flashcards

Flashcards in Vision Deck (18):
0

Rods

Night. Black and white

1

Brightness

Amplitude. High/low wave is.

2

Color (hue)

Length of wave. Long @ red end. Shirt @ blue end.

3

Saturation

Purity of color

4

Cornea

Bend light to focus image in retina.

5

Pupil

Iris opening change size for amount of light

6

Iris

Muscle control

7

Lens

Changes shape to bring objects into focus

8

Retina

Photoreceptors cells

9

Blind spot

Optic nerve leaves eye. No photo receptor cells

10

Optical nerve

Visual info. To brain.

11

Fovea

Central area. Greatest density of photo receptor cells

12

Dark adaption

Recovery to sensitivity from light to dark.

13

Light adaption

Recovery of eye sensitivity from dark to light.

14

Trichromatic theory

Propose 3 types if cones: red, blue, green

15

After image

Image occur when visual sensation persists brief time after

16

Color blindness

Defective cones on retina of eye

17

Opponent process theory

Sensory receptor cells in pairs