Signal detection theory

Theory that predicts how and when we detect a faint stimulus amid background noise.

the study of relationships between physical characteristics of stimuli and our psychological experiences of them.

the principle that, to be perceived as different, two stimuli must differ by constant minimum percentage

the eye’s clear, protective outer layer, covering the pupil and iris

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

the light-sensitive back inner surface of the eyes that begin the processing of visual information

the central focal point in the retina, around which the eye’s cones cluster.

sound waves traveling through the cochlear fluid trigger nerve impulses

Sensorineural hearing loss

caused by damage to the cochlea’s receptor cells or to the auditory nerve

Conduction hearing loss

caused by damage to the mechanical system that conducts sound waves

the theory that links the pitch we hear with the place where the cochlea’s membrane is stimulated

Frequency matching theory

the theory that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone

theory that the spinal cord contains a neurological “gate” that blocks pain signals or allows them to pass on to the brain

binocular cue for perceiving depth

Stroboscopic movement

an illusion of continuous movement

an illusion of movement created when two or more adjacent lights blink on and off in succession

the illusory movement of a still spot of light in a dark room

Physiological functioning theory

suggests that dreams keep the brain's neural pathways active and preserved during sleep

Activation synthesis theory:

proposes that dreams are the brain's attempt to make sense of random neural firings that occur during REM sleep

Suprachiasmatic nucleus (SCN)

a pair of cell clusters in the hypothalamus that controls circadian rhythm

REM sleep behavior disorder

a sleep disorder in which normal REM paralysis does not occur

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u2 psych

Question	Answer
Signal detection theory	Theory that predicts how and when we detect a faint stimulus amid background noise.
Psychophysics	the study of relationships between physical characteristics of stimuli and our psychological experiences of them.
Weber’s law	the principle that, to be perceived as different, two stimuli must differ by constant minimum percentage
Cornea	the eye’s clear, protective outer layer, covering the pupil and iris
Lens	the transparent structure behind the pupil that changes shape to help focus images on the retina.
Retina	the light-sensitive back inner surface of the eyes that begin the processing of visual information
Fovea	the central focal point in the retina, around which the eye’s cones cluster.
Cochlea	sound waves traveling through the cochlear fluid trigger nerve impulses
Sensorineural hearing loss	caused by damage to the cochlea’s receptor cells or to the auditory nerve
Conduction hearing loss	caused by damage to the mechanical system that conducts sound waves
Place theoru	the theory that links the pitch we hear with the place where the cochlea’s membrane is stimulated
Frequency matching theory	the theory that the rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone
Gate-control theory	theory that the spinal cord contains a neurological “gate” that blocks pain signals or allows them to pass on to the brain
Retinal disparity	binocular cue for perceiving depth
Stroboscopic movement	an illusion of continuous movement
Phi phenomenon	an illusion of movement created when two or more adjacent lights blink on and off in succession
Autokinetic effect	the illusory movement of a still spot of light in a dark room
Physiological functioning theory	suggests that dreams keep the brain's neural pathways active and preserved during sleep
Activation synthesis theory:	proposes that dreams are the brain's attempt to make sense of random neural firings that occur during REM sleep
Suprachiasmatic nucleus (SCN)	a pair of cell clusters in the hypothalamus that controls circadian rhythm
REM sleep behavior disorder	a sleep disorder in which normal REM paralysis does not occur

Created by: 214357

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