At the optic chiasm,

Question

BlackTom AI · Accepted Answer

To analyze the statements, recall how the optic pathways cross at the optic chiasm.

Option 1: 'information from the right eye is processed by the left hemisphere of the brain.' This is not accurate as a general rule. After the chiasm, fibers from each eye split into pathways that carry information from both visual fields to each hemisphere. The left hemisphere processes information from the right visual field (not exclusively from the right eye). So saying it comes from the right eye specifically is misleading and oversimplified.

Option 2: 'information from the right side of space is processed by the left hemisphere of the brain.' This aligns with the known organization: the nasal (medial) fibers cross at the chiasm so that visual information from the right-side space ultimately projects to the left hemisphere. In other words, the right field of view is represented in the left hemisphere, which makes this statement correct.

In summary, the claim about right-side space being processed by the left hemisphere reflects the key crossing behavior at the optic chiasm, whereas the claim about processing strictly from the right eye does not account for the binocular and crossed nature of the pathways.

PSYC-2010-003 (Spring 2025) Quiz 4 (Sensation and Perception)

At the optic chiasm,

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