Vision Flashcards
What does vision depend on ?
Light emitted by sun, lightbulbs, etc
How do we experience light?
Colour, brightness, saturation - depends on wavelength, amplitude, complexity
6 parts eye is composed of
cornea fovea iris pupil lens retina
Accomodation process?
Lens adjusts its shape to focus light from objects that are near or far
Dark and Light adaption
Receptor cells sensitize and desensitize to light
Blind spot?
Optic disk
Feature detectors?
After being processed in brain, visual signals reach primary visual cortex, fd respond to that signal
Opponent Process Theory
Accounts for perception of primary colours. Also afterimages
Gestalt Psychology
Perceived whole sometimes has properties that dont exist in the parts that make it up