Deconstructing… (from Kandel’s “In Search of Memory”)

“Each cell in the primary visual cortex responds only to a specific orientation of light-dark contours. If a square block is rotated slowly before our eyes, changing the angles of each edge, different cell will respond to these different angles. Some cells respond best when the linear edge is oriented vertically, others when the edge is horizontal, and still others when the axis is at an oblique angle. Deconstructing visual objects into line segments of different orientation appears to be the initial step in encoding the forms of objects in our environment.”

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