Sensation And Perception

Front 1

sensation

Back 1

the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment

Front 2

perception

Back 2

process of organizing and enabling us to recognize meaningful objects and events

Front 3

absolute threshold

Back 3

the min stimulation needed to detect a particular stimulus 50% of the time

Front 4

signal detection theory

Back 4

a theory predicting how and when we detect the presence of a faint stimulus amid background stimulation

Front 5

transduction

Back 5

conversion from one form of energy to another

Front 6

hue

Back 6

the demensions of color that is determined by the wavelength of light (blue green purple ex)

Front 7

bottom up processing

Back 7

analysis that begins with the sensory receptors and works up to the brains integration of sensory information

Front 8

top down processing

Back 8

information processing guided by higher level mental processes, as when we construct perceptions drawing on our experience and expectations

Front 9

pupil

Back 9

the adjustible opening into the center of the eye through which light enters

Front 10

iris

Back 10

a ring of muscle tissue that forms the colored portion of the eye and controls the size of the pupil opening

Front 11

lens

Back 11

the transparent structure behind the pupil that cjanges shape to help focus images on the retina

Front 12

retina

Back 12

the light sensitive inner surface of the eye containing the receptor containing cones plus layers of neurons that begin the processing of visual information

Front 13

accommodation

Back 13

The process by which the eyes of plans change shape to focus or far objects on the retina

Front 14

rods

Back 14

Retinal receptors that detect black white and grey necessary for peripheral and twilight vision when cones don't respond

Front 15

cones

Back 15

Retnal receptor cells that are concentrated near the center of the retina and that function in daylight and in well lit conditions the cones detect fine detail and give rise to color sensations

Front 16

optic nerve

Back 16

The nerve that carries normal impulse is from the eye to the brain

Front 17

blind spot

Back 17

The point at which the optic nerve leave the eye creating a blind spot because no receptor cells are located there

Front 18

fovea

Back 18

The central focal point in the retina around which the eye cones cluster

Front 19

trichromatic theory

Back 19

That theory that the right now contains 3 different color receptors 1 of the most sensitive to red one to green one to blue which when simulated in combination can produce the perception of any color

Front 20

opponent process theory

Back 20

The theory that the opposing retina processes enable color vision

Front 21

pitch

Back 21

tones experienced highness or lowness depends on frequency

Front 22

cochlea

Back 22

coiled bony fluid filled tube in the inter ear through which sound waves trigger nerve impulses

Front 23

place theory

Back 23

In hearing the theory that links the pitch we here with the place where the cochleas membrane is stimulated

Front 24

vestibular sense

Back 24

The sense of body movement and position including the sense of balance

Front 25

gate control theory

Back 25

that theory that the spinal cord contains a neurological gate that blocks pain signal or allows it to pass on to the brain the gate is open by the activity a pain signals traveling up small nerve fibers and is closed by activity and larger fibers or buy in formation coming from the brain

Front 26

retinal disparity

Back 26

Hey binocular cue 4 perceiving buy comparing images from the retina in the 2 eyes

Front 27

monocular cues

Back 27

Depth q such as interpretation and when your perspective is an introposition to either eye alone

Front 28

perceptual consistancy

Back 28

perceiving objecta as unchanging