Vision Flashcards
Amount of energy in light waves
Intensity
The distance from one peak to the next
Wavelength
The lens focuses the rays by changing its curvature
Accommodation
Retinal receptors that detect black, white, and gray
Use for peripheral and twilight vision
Rods
Retinal receptor cells that detect fine details (color) and function in daylight
Cones
The nerve that carries neural impulses from the eye to the brain
Optic nerve
Where the optic nerve leaves the eye
No receptor cells
Blind spot
Fovea
The central focal point in the retina, around which the eye’s cones cluster
Retinal processing
Receptor rods and cones–> bipolar cells–> ganglion cells
Brain’s detector cells respond to specific features of stimulus (edges, lines, angles , shapes)
Feature detection
Parallel processing
Processing color,motion,form, and depth simultaneously
Recognition
Brain interprets the constructed image based on info from stored images
He retina contains 3 different color receptors. One sensitive to red, green, or blue
Young Helmholtz trichromatic
3-color theory
Form or whole
Gestalt
Opposing retinal processes enable color vision
Red-green, yellow-blue, white-black
Opponent-process theory