Psych 100 Chapter 4 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Question | Answer |
| sensation | sense organs' detection of stimuli, their response to the stimuli and the transmission of these responses to the brain |
| perception | processing, organization, and interpretation of sensory signals; it results in an internal respresentation of the stimulus |
| absolute threshold | minimum intensity of stimulation that must occur before you experience a sensation Ex: absolute threshold for hearing = the faintest sound a person can detect 50% of the time |
| difference threshold | noticeable difference between two stimuli; the minimum change in volume, the minimum quantitative change, required for you to detect a difference Ex: friend watching tv while you're reading, look up when a commerical comes on |
| audition | hearing; the sense of sound perception |
| sound wave | A pattern of changes in air pressure during a period of time; it produces the percept of a sound -wave's amplitude = loudness (higher the sound, louder the sound) -wave's frequency = pitch (higher frequency higher the pitch) |
| basilar membrane | -movement of the basilar membrane stimulates hair cells to bend and to send info to the auditory nerve |
| retina | the thin inner surface of the back of the eyeball; it contains the photoreceptors that transduce light into neural signals |
| rods | retinal cells that respond to low levels of illumination and result in BLACK & WHITE perception |
| cones | retinal cells that respond to higher levels of illumination and result in COLOR perception |
| fovea | the center of the retina, where cones are densely packed |
| primary visual cortex | cortical areas in the occiptial lobes, at the back of the head |
| trichromatic theory | color vision reults from activity in 3 different types of cones that are sensitive to different wavelengths (S, M, and L) |
| blind spot | small point at the back of the retina created by the optic nerve no receptors at this spot b/c it is where the nerve leaves the eye |
| opponent-process theory | when some colors seem to be "opposites" Ex: looking at a RED image for some time then we see GREEN afterimage when we look away; when we stare at a GREEN image we see a RED afterimage |
| gate control theory of pain | neural "gates" in the spinal cord allow signals through. Those gates can be closed when info about touch is being transmitted (ex: rubbing a sore arm) or by distraction) |
| Gestalt | -german word: "shape" or "form" -psychology meaning: "organized whole" -holds that our brains can use innate principles to organize sensory info Ex: we perceive "a car" vs "metal, tires, door, hubcaps, etc" |
| principle of proxmity | states that the closer two figures are to each other, the more likely we are to group them and see them as part of the same object |
| principle of similarity | we tend to group figures according to how closely they resemble each other. |
| binocular dept cues | cues of depth perception that arise from the fact that people have two eyes |
| monocular depth cues | cues of depth perception that are available to each eye alone |
| convergence | cue of binocular depth perception; when a person views a nearby object, the eye muscles turn the eyes inward |
Created by:
kdeep27
Popular Psychology sets