l11 vision Flashcards
(9 cards)
concious pathway
to lateral geniculate nuclei (thalamus) to cortex
unconcious pathway
visual reflex (direct eyes)
- to superior coliculous (midbrain)
pupilary reflex: change in diameter of pupil
- to pretactal nucleous (midbrain)
spatial attention: remain eye when moving head
- to pulvina (thalamus)
circadian: light receptions based on circadian
- to superchiamastic (thalamus)
ventral stream to face
shape, high details
ventral stream to lgn
face recognition
dorsal stream
spatial attention
parasympathetic optic
circular contract eye
light pathway
Information travel from photoreceptors to retinal ganglion cell
Axon of rgc form optic nerve -> project to brain
Ø High convergence of receptors projecting onto rgc
rod, scotopic, large receptive field
1:1 relationshipof receptors projecting onto rgc (not convergence)
Ø FOVEA = HIGH ACUITY + COLOURS (NO RODS)
FOVEA = HIGH ACUITY + COLOURS (NO RODS)
only cone