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Development of orientation preference in the mammalian visual cortex

✍ Scribed by Chapman, Barbara ;G�decke, Imke ;Bonhoeffer, Tobias

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
131 KB
Volume
41
Category
Article
ISSN
0022-3034

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✦ Synopsis

Recent experiments have studied the development of orientation selectivity in normal animals, visually deprived animals, and animals where patterns of neuronal activity have been altered. Results of these experiments indicate that orientation tuning appears very early in development, and that normal patterns of activity are necessary for its normal development. Visual experience is not needed for early devel-opment of orientation, but is crucial for maintaining orientation selectivity. Neuronal activity and vision thus seem to play similar roles in the development of orientation selectivity as they do in the development of eyespecific segregation in the visual system.

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