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Predicting perception from population codes

Treue and colleagues use electrophysiological recordings in monkeys and psychophysical experiments in humans to suggest that the shape of a population response in a motion sensitive region of the brain (area MT), rather than the peak of the response, determines motion perception.

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Figure 1: Electrophysiological recordings in visual area MT of rhesus monkeys by Treue and colleagues1 suggest that the population response to a transparent motion stimulus with two components separated by ±40 degrees is probably the same as the population response to a transparent motion stimulus with three components (+50, 0, −50 degrees).


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Groh, J. Predicting perception from population codes. Nat Neurosci 3, 201–202 (2000).

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