Intro to Sensation and Perception

Bottom-up processing Top-down processing

Thresholds:

absolute-

signal detection theory-

subliminal stimulation-

difference (Weber’s Law)-

Sensory adaptation

Selective attention

inattentional blindness

change blindness

pop-out phenomenon

Module 13--Vision

What is transduction? Why is it necessary?

wavelength=hue

amplitude=brightness

The eye

Pupil

Iris

Lens

Retina

-rods and cones

-optic nerve

-blindspot

-fovea

Feature detectors

Parallel processing

Visual Information Processing

Color Vision

Young-Helmholtz trichromatic theory

Opponent-process theory

Color constancy

Module 14--Hearing

Stimulus-sound waves Parts of the Ear

Outer ear (funnel for sound)

auditory canal

Middle ear

eardrum

hammer, anvil, stirrup

Inner ear

cochlea

oval window

basilar membrane

hair cells

auditory nerve

Perception of pitch Hearing loss

place theory (Helmholtz)- conduction hearing loss

frequency theory- sensorineural hearing loss

Sound location

Cochlear implants

Sensory compensation

Module 15--The “Other” Senses

Touch

Pain: Gate-control theory

Biological influence

Psychological influence

Social-cultural influence Influence of memories

Taste

taste receptors

sensory interaction

(rare form of interaction-synaesthesia)

Smell (olfaction)

Body position and movement

Kinesthesis (the system for sensing the body parts’ position and movement)

Vestibular sense

(the sense of body movement and position, includes balance)

Module 16--Perceptual Organization

Organization Principles

gestalt Form perception

figure-ground

grouping

Depth perception

visual cliff

binocular cues:

retinal disparity convergence

monocular cues:

relative size / relative height
interposition / relative motion
relative clarity / linear perspective
texture gradient / light and shadow

Motion perception

phi phenomenon

Perceptual constancy

shape and size constancies

size-distance

Lightness constancy

Module 17--Perceptual Interpretation

Sensory deprivation and restored vision

The role of experience and “critical periods”

Perceptual adaptation (goggles)

Perceptual Set—what do you see? Role of schemas

Concept effects

Perception and the human factor

human factor psychologists

natural mapping

Extra sensory perception

telepathy psycho kinesis

clairvoyance precognition