Eyes Flashcards
Rhodopsin
Transduces photons to electrical signal
Cornea
Focuses light, convex, converging
Pupil
Gathers incoming light
Iris
Colored, restricts and contracts, opens up
Fovea
Focusing spot of eye, lots of cones
Rods and Cones to ->
Bipolar cells to ganglion cells to optic nerve
optic chiasm
optic nerve crossing point
thalamus
directs sensory input
Lateral Geniculate Nucleus (LGN)
Main area of thalamus for visual processing (medial, MGN for sound)
LGN VS MGN
light v. music
Visual v Auditory
Occipital lobe
Takes visual info from thalamus and processes it
Superior Colliculus
Allows tracking of objects (Superman has superior vision)
Parallel Processing
Analyzes lots of stuff at once
Feature Detection
Filtering to identify
Parvo cells
Shape
Magno cells
Motion
Top-Down Processing
Recognize big picture from memory, then check details (More susceptible to bias and mistakes) (faster)
Bottom-Up Processing
Looking at details, building a picture from it
law of pragnanz
simple, logical, regular as possible
Law of Proximity
See things as a group
Law of Similarity
See individual things amongst a mix
Law of good continuation
keep things continuous, not weirdly, even though it could be seen that way
Subjective Contours
Insert shapes that are not there, from voids (usually multiple opinions on what is seen)
law of closure
filling gaps from voids to make one complete thing
