The Occipital Lobes and Networks Flashcards
the occipital lobe is _________ within the brain
posterior
what types of animals has the organization of the primate visual field been studied extensively in
old world monkeys
where do the visual areas extend into
the temporal and parietal lobes
what is the context of the primary visual cortex?
surrounds the calcarine sulcus and contains distinct layers and sublayers
what is true of the visual regions in the left and right hemispheres?
they are not exactly the same
V1 and V2 are both _________
heterogenous
thin stripes are involved in what
color perception
thick stripes are involved in what
form information
pale stripes are involved in what
motion perception
why is color perception important
enhances our ability to detect form and motion
where does visual processing start and project to?
starts in V1 and projects to all major visual areas
where is the secondary processing location in the visual system
V2
within V2 what is the dorsal stream responsible for
visual guidance of movemebt
within V2 what is the ventral stream responsible for
object and motion perception
within V2 what is the STS stream responsible for
object and motion perception
what is another name for the dorsal stream in the visual system
occipitopareital
where does the occipitopareital (dorsal) stream flow inthe brain
from area V1 to the posterior parietal areas
what is another name for the ventral stream in the visual system
occipitotemporal
where does the occipitotemporal (ventral) stream flow in the brain
from area V1 to the temporal lobe to take part in object recognition and functions of temporal visual areas
what makes up the STS stream
the convergence of info from dorsal and ventral streams
where does the STS stream flow
from area V1 into superior temporal sulcus
V1 and V2 are said to be what?
heterogenous general areas
what sort of info does V3 proess
dynamic form, the shapes of objects in motion
what does V4 process
mostly color info
