There are many extrastriate regions, and these are specialized for different visual tasks, such as visuospatial processing, color differentiation, and motion perception.
The lobes rest on the tentorium cerebelli, a process of dura mater that separates the cerebrum from the cerebellum.
It contains a low-level description of the local orientation, spatial-frequency and color properties within small receptive fields.
Although numerous studies have shown that the two systems are independent and structured separately from another, there is also evidence that both are essential for successful perception, especially as the stimuli take on more complex forms.
They found that the two pathways play a role in shape perception even though location processing continues to lie within the dorsal stream.
A case study on monkeys revealed that information from V1 and V2 areas make up half the inputs in the DM.
The lingula receives information from the contralateral inferior retina representing the superior visual field.
The retinal inputs pass through a "way station" in the lateral geniculate nucleus of the thalamus before projecting to the cortex.
Cells on the posterior aspect of the occipital lobes' gray matter are arranged as a spatial map of the retinal field.
If one occipital lobe is damaged, the result can be homonymous hemianopsia vision loss from similarly positioned "field cuts" in each eye.
[5] Recent studies have shown that specific neurological findings have affected idiopathic occipital lobe epilepsies.
Occipital seizures are triggered mainly during the day, through television, video games or any flicker stimulatory system.