Siamese cat: altered connections of visual cortex.
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.
D000818:Animals; D001931:Brain Mapping; D002415:Cats / Q000033:anatomy & histology* / Q000254:growth & development; D007839:Functional Laterality; D005829:Geniculate Bodies / Q000033:anatomy & histology; D009154:Mutation; D012160:Retina / Q000033:anatomy & histology*; D014793:Visual Cortex / Q000033:anatomy & histology*; D014795:Visual Pathways / Q000033:anatomy & histology / Q000254:growth & development