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Science 9 November 1973:
Vol. 182. no. 4112, pp. 599 - 601
DOI: 10.1126/science.182.4112.599
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Articles

Visual Experience without Lines: Effect on Developing Cortical Neurons

J. D. Pettigrew 1 and R. D. Freeman 2

1 Department of Physiology-Anatomy, University of California, Berkeley 94720
2 School of Optometry, University of California, Berkeley 94720

Kittens were reared in a planetarium-like visual environment that lacked straight line contours. Cortical neurons were subsequently highly sensitive to spots of light but not to straight lines, in marked contrast to those from a normal cat. If linear contour processing is an innate function it appears to be subject to substantial modification by early visual experience.


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