Visual Processing Flashcards
Most common cause of chasmal compression is __________.
Pituitary adenoma
In your left occipital lobe, the _____ visual field will be processed.
Right
______ fibers of each eye decussate at the optic chasm.
Nasal
The right visual field of both eyes process in the _______ striate cortex.
left
Optic tracts terminate in the _____ _______ nucleus part of the thalamus, where the axons synapse depending on their subtype and originating eye.
lateral geniculate
From the lateral geniculate nucleus, axons continue posteriorly until they synapse in the striate cortex as the ________ _______.
Optic radiations
Fibers from the _____ visual field pass broadly into the temporal lobe as Meyer’s Loop.
superior
____ visual field fibers, from the superior retina, pass more directly back through the parietal lobe before arriving in the striate cortex.
inferior
The macular tip, or posterior end of the occipital lobes, has a dual blood supply form both the ____ and the MCA.
PCA
On-center cells
Fire faster when light falls on the center of the field, slower when light falls on the periphery of the field, and don’t do much in response to diffuse illumination.
Off-center cells
Fire slower when light falls on the center of the field, faster when light falls on the periphery, and don’t do much in response to diffuse illumination. (aka off center cells fire faster when illumination of their center decreases).
Amblyopia
A condition where abnormal vision develops due to inability of the visual system to receive, develop, and process visual signals.
Color perception is processed in the _________ and _________.
Posterior fusiform, posterior lingual gyri
