Vision

The transforming of stimulus energies, such as sights, and smells, into neural impulses our brain can interpret.

the distance from the peak of one light or sound wave to the peak of the next

the dimension of color that is determined by the wavelength of light

the amount of energy in a light or sound wave, which we perceive as brightness or loudness, as determined by the wave's amplitude

entry point of light; protects eye and bends light to provide focus

the adjustable opening in the center of the eye through which light enters

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

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

the light-sensitive inner surface of the eye, containing the receptor rods and cones

the process by which the eye's lens changes shape to focus near or far objects on the retina

retinal receptors that detect black, white, and gray

peripheral vision and twilight vision

retinal receptor cells that are concentrated near the center of the retina and that function in daylight or in well-lit conditions.

next to rods and cones, activated when light energy trigger chemical changes in rods and cones which send out neural signals

activated by neighboring bipolar cells

rods & cones-->bipolar cells-->ganglion cells

the nerve that carries neural impulses from the eye to the brain

the point at which the optic nerve leaves the eye, creating a "blind" spot because no receptor cells are located there

the central focal point in the retina, around which the eye's cone cluster

nerve cells in the brain that respond to specific features of the stimulus, such as shape, angle, or movement

respond to more complex patterns present in info. sent to them by feature detectors

the processing of many aspects of a problem simultaneously; brains natural mode of processing

color, movement, form, depth

localized are of blindness in part of a person with damaged brain area's vision

illustrated by separate visual systems for perception and action

retina contains three diff. color receptors-red, green, blue-which, when stimulated in combo., can produce the perception of any color

theory that opposing retinal processes (red-green, yellow-blue, white-black) enable color vision