Lecture 8 Flashcards
finish this quote by Robert Kiyosaki
“sight is what you see with your eyes, vision ……….
“sight is what you see with your eyes, vision is what you see with your mind”
around half of the cerebral cortex is devoted to what
visual processing
if optical information is ambiguous what will humans do
humans reweight other sensory inputs
Rods
peripheral retina
sensitive to light
sensitive to movement
“NIGHT VISION”
Cones
Concentrated in the central retina
detail extraction
colour detection
“DAY VISION”
what is the primary sensory organ of the visual system
the retina
where is the retina found in the eye
lining of the back of the eyeball
what are the 6 extraocular muscles
superior rectus muscle
inferior rectus muscle
medial rectus muscle
lateral rectus muscle
superior oblique muscle
inferior oblique muscle
5 types of eye movements
vestibular-ocular reflex
optokinetic reflex (responsible for large
movements around)
smooth pursuit
saccades
vergence
what are the skilled eye movements that need to be practiced
smooth pursuit
saccades
vergence
what is monocular vision
seeing with only one eye at a time
what is binocular vision
vision using two eyes with overlapping fields of view
what is binocular vision important for
important for depth perception
what do skilled players orient their central vision to
orient central vision towards key players
what do skilled players concurrently use peripheral vision to what …….
concurrently use peripheral vision to pick up information from other players
less skilled players dont have enough knowledge to effectively …..
process information from peripheral vision
what vision strategy may be used by less skilled players
direct all their attention centrally, to look at key players
skilled athletes posses a superior capacity to use …
central and peripheral vision
what are the two visual channels
perception and action pathway
Perception pathway
connects the primary visual cortex with the inferior temporal lobes
Ventral system
Action pathway
Connects the primary visual cortex with posterior parietal lobes
Dorsal stream
where is the dorsal stream located
goes over the top like a dolphin
where is the ventral stream located
below the dorsal stream
how is it known that dorsal and ventral streams work in tandem
ecause research has been done on people with injuries to their brain
