For a normally developed ocular dominance histogram, what does Column 1 represent?

For a normally developed ocular dominance histogram, what does Column 1 represent?

• A. Contralateral eye only
• B. Ipsilateral eye only
• C. Equal input from both left and right eye
• D. No input

Answer: (A)

Ocular dominance histograms categorize neurons by which eye can drive their responses. The first column represents neurons that respond only to stimulation of the contralateral eye—the eye opposite the hemisphere being considered. This reflects how many neurons in the early visual cortex are driven exclusively by the contralateral input, with other columns accounting for neurons driven by the ipsilateral eye only or by both eyes (binocular input). So, Column 1 corresponds to contralateral-eye-only input.

Ocular dominance histograms categorize neurons by which eye can drive their responses. The first column represents neurons that respond only to stimulation of the contralateral eye—the eye opposite the hemisphere being considered. This reflects how many neurons in the early visual cortex are driven exclusively by the contralateral input, with other columns accounting for neurons driven by the ipsilateral eye only or by both eyes (binocular input). So, Column 1 corresponds to contralateral-eye-only input.