Ch. Part 2 Flashcards
The point at which the optic nerve leaves the eye, creating a blind spot because no receptor cells are located there
Blind spot
The central focal point in the retina, around which the eyes cones cluster
Fovea
Nerve cells in the brain that respond to specific features of the stimulus such as shape, angle, or movement
Feature detectors
The processing of several aspects of a problem simultaneously
Parallel Processing
The theory that the retina contains three different color receptors, one most sensitive to red, one to green, one to blue. When stimulated in combination can produce the perception of any color
Young-Helmholtz trichromatic (three color) theory
The theory that opposing retinal processes enable color vision. For example some cells are stimulated by green and inhibited by red; others are stimulated by red and inhibited by green
Opponent process theory
The nerve that carries neural impulses from the eye to the brain
Optic nerve
Perceiving familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the object
Color constancy
The sense or act of hearing
Audition
The number of complete wavelengths that pass a point in a given time
Ex: per second
Frequency
A tones experienced highness or lowness; depends on frequency
Pitch
The chamber between the eardrum and cochlea containing 3 tiny bones (hammer, anvil, and stirrup) that concentrate the vibrations of the eardrum on the cochlea’s oval window
Middle ear
A coiled , bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses
Cochlea
The innermost part of the ear, containing the cochlea, semicircular canals and vestibular sacs
Inner ear
Contain fluid and sensors that detect rotational movement of the head
Semicircular canals and balance