AP Psych Sensation and Perception

sensation, perception, vision, hearing, other senses

Sensation

Perception

Bottom up processing

starts with sensory info and builds to recognition. (see shapes/colors, then a dog)

Top down processing

uses expectations/experience and interprets information. (read a sentence with a misspelled word)

VISION

Cornea

Pupil

Iris

Lens

Retina

Optic nerve

Blind spot

Trichromatic theory

3 types of cones (red, green, blue)

explains color vision

The Visual Pathway

Light enters eyes →Cornea - Pupil - Lens → Retina (rods and cones) →Optic nerve →Visual cortex

HEARING