Siamese cat: altered connections of visual cortex

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Science  20 Apr 1979:
Vol. 204, Issue 4390, pp. 328-330
DOI: 10.1126/science.432647


In siamese cats, each side of the brain receives a retinal input serving part of the ipsilateral visual field as well as the normal contralateral field representation. Both corticothalamic and cortico-cortical projections are systematically rearranged, but while one is retinotopically appropriate, the other fails to make a distinction between ipsilateral and contralateral fields. Different rules appear to govern the development of these two sets of connections.