pysch unit 3

theory states that the frequency of a sound matches the rate of neuron activation

Frequency Theory

purpose of cornea in the eye

Layering that provides protection and bends light into eye

perception of sound depends on where each component frequency produces vibrations along the basilar membrane

Place Theory

top-down processing

Stimulus is guided by brain processes and background info.

absolute threshold

Stimulus necessary to detect a stimulus 50% of the time.

difference threshold

The difference between two stimuli needed to detect 50% time

in hearing pitch is described as

The highness and lowness of a particular tone

theory that we have different kinds of rods and cones for different colors

Young-Helmholtz Theory

bottom-up processing

begins with the sensory receptors and works up to the brain

short wavelengths are associated with what colors

blues and purples

The Müller-Lyer illusion exists in cultures in which there are ________.

buildings with lots of corners

in a figure ground picture the figure is

changes based on perspective

selective attention

choosing and attending to one specific stimuli.

helps us see bright light and color

cones

unit of measuring sound intensity

decibel

not one of the three auditory ossicles

pinna

Long waves are associated with the following colors...

reds and oranges

retinal disparity

the greater the difference in images the closer they are

in hearing frequency refers to whaat

the length of a sound wave

both light and sound travel in form of

wavelengths