Which column would indicate input from the ipsilateral eye only in a normally developed histogram?

Which column would indicate input from the ipsilateral eye only in a normally developed histogram?

• A. 1
• B. 2
• C. 4
• D. 7

Answer: (D)

The idea being tested is how ocular dominance columns map input from the two eyes. In a normally developed histogram, some columns respond to input from only one eye (monocular columns) while others respond to input from both eyes (binocular columns). A column that receives input exclusively from the eye on the same side (ipsilateral eye) will light up when that eye is stimulated but not when the opposite eye is stimulated. In the standard layout of the histogram, the column that represents input from the ipsilateral eye only appears as the monocular column on the ipsilateral side—the far-right column. That column would respond to ipsilateral-eye stimulation and not to contralateral-eye stimulation, indicating ipsilateral-only input. The other monocular columns would represent input from the contralateral eye or columns that are not restricted to one eye.

The idea being tested is how ocular dominance columns map input from the two eyes. In a normally developed histogram, some columns respond to input from only one eye (monocular columns) while others respond to input from both eyes (binocular columns). A column that receives input exclusively from the eye on the same side (ipsilateral eye) will light up when that eye is stimulated but not when the opposite eye is stimulated.

In the standard layout of the histogram, the column that represents input from the ipsilateral eye only appears as the monocular column on the ipsilateral side—the far-right column. That column would respond to ipsilateral-eye stimulation and not to contralateral-eye stimulation, indicating ipsilateral-only input. The other monocular columns would represent input from the contralateral eye or columns that are not restricted to one eye.