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A key discovery by Hubel and Wiesel was the highly organized arrangement of neurons in the visual cortex. They found that cells with similar response properties, such as reacting to the same line orientation, are grouped together into vertical structures known as columns. These columns are further organized into larger processing units called hypercolumns.

Columns and Hypercolumns in the Visual Cortex

A neuroscientist inserts a microelectrode perpendicularly into the surface of the primary visual cortex, advancing it straight down through the layers. The activity of several neurons encountered along this path is recorded. What is the most likely finding regarding the orientation preference of these successively recorded neurons?

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