Unit IV review Flashcards
Blindspot
Area with no receptor cells
Cones
deal with detail and color
Rods
Deal with faint light and peripheral vision
Three color theory
Said the retinas contain three types of color receptors, each most sensitive too the primary colors of light
Three primary colors of light
Green, red and blue
Parallel Processing
The ability of your brain to simultainiously process incoming stimuli of differing qualities
Retina
A layer at the back of the eyeball containing cells that are sensitive to light and that trigger nerve impulses that pass via the optic nerve to the brain, where a visual image is formed.
Lens
A nearly transparent biconvex structure suspended behind the iris of the eye, the sole function of which is to focus light rays onto the retina.
Retinal disparity
The slight difference in the two retinal images due to the angle from which each eye views an object.
Accommodation
Accommodation is when we restructure of modify what we already know so that new information can fit in better.
Fovea
A small depression in the retina of the eye where visual acuity is highest. The center of the field of vision is focused in this region, where retinal cones are particularly concentrated.
Optic nerve
A bundle of more than 1 million nerve fibers that carry visual messages
Opponent process theory
Proposes that one member of the color pair suppresses the other color. For example, we do see yellowish-greens and reddish-yellows, but we never see reddish-green or yellowish-blue color hues
Gestalt
A movement in psychology founded in Germany in 1912, seeking to explain perceptions in terms of gestalts rather than by analyzing their constituents.
Grouping
A set of principles in psychology, first proposed by Gestalt psychologists to account for the observation that humans naturally perceive objects as organized patterns and objects