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Binocular Interactions in the Lateral Suprasylvian Visual Area of Strabismic Cats Following Section of the Corpus Callosum
Author(s) -
Stefano M.,
Lepore F.,
Ptito M.,
Bédard S.,
Marzi C. A.,
Guillemot J. P.
Publication year - 1991
Publication title -
european journal of neuroscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.346
H-Index - 206
eISSN - 1460-9568
pISSN - 0953-816X
DOI - 10.1111/j.1460-9568.1991.tb00038.x
Subject(s) - strabismus , corpus callosum , cats , splenium , binocular vision , contrast (vision) , anisometropia , receptive field , ocular dominance , neuroscience , psychology , visual cortex , anatomy , medicine , ophthalmology , visual acuity , physics , magnetic resonance imaging , optics , radiology , refractive error , white matter
Visually responsive neurons have been recorded in the lateral suprasylvian area (LSA) of cats raised with either a convergent or a divergent strabismus. In contrast to areas 17 and 18, where many studies have documented a profound loss of binocularly activated neurons following early strabismus, in the LSA the majority of cells could still be binocularly driven. Acute or chronic section of the splenium of the corpus callosum reduced but did not abolish binocularity in the LSA. We propose that the widespread callosal connections, the large size of the receptive fields and the peculiar internal circuitry of the LSA all concur in permitting the maintenance of binocular coding in spite of early misalignment of the eyes.