Callosal and commissural interhemispheric connections between primary visual areas in infantile esotropia

Abstract

Images in the median plane of the head either fall on both nasal hemi-retinae or on both temporal hemi-retinae. Interhemispheric connections, in humans the corpus callosum, allow cortical cells to have receptive fields on opposite sides. These connections were shown to be abnormal in infantile esotropia while individuals with agenesis of the corpus callosum may show normal stereopsis and disparity vergence. We have investigated here whether interhemispheric connections through the anterior commissure, a phylogenetic earlier interhemispheric pathway, might explain this inconsistency.