1970) "What the frog's eye tells the monkey's brain." Brain, Behaviour, Evolution, 3, 324-337, 1970 (original) (raw)

Monkeys with the striate cortex destroyed have been supposed to be all but blind, their vision being limited to a rudirnentary ability to respond to the total unstructured activity of the retina. During the last 2 years I have worked extensively with two such de-striate monkeys and have found this supposition to be false. It has been possible to train these rnonkeys to reach out and touch visually presented objects, and through this I have obtained evidence of acute vision which may be comparable in sensitivity and spatial resolution to that of a normal animal. Their vision does, however, have singular features that indicate that it is quite abnormal in its qualitative character.