Half of the information from each eye — that is, the information from the half of each retina that is closest to the nose — crosses to the opposite side of the brain for processing.What is the functional consequence of this crossing over?
A) The visual fields do not overlap.
B) The visual cortex does not distinguish which side of the visual field the information arrived from.
C) The splitting of information prevents too many action potentials from arriving in the cortex at the same time.
D) The thalamus reassembles the information from both eyes for processing.
E) All of the information from the left visual field goes to the right side of the brain, and all of the information from the right visual field goes to the left side of the brain.

Question

Quizplus · Accepted Answer

The crossing over of half the information from each eye allows for each side of the brain to receive information from both the left and right visual fields. Specifically, the left side of the brain receives all of the information from the right visual field (as this information crosses over from the right half of each retina), while the right side of the brain receives all of the information from the left visual field (as this information crosses over from the left half of each retina). This allows for integration and comparison of visual information from both sides of the body.

Half of the Information from Each Eye — That Is