Lateralization reversal after intertectal commissurotomy in the pigeon.
After transection of the intertectal commissures, the lateralization of a visually controlled behaviour of pigeons was reversed to a degree proportional to the extent of the commissurotomy. Preoperatively, the pigeons produced higher pecking rates in a successive pattern discrimination task when seeing with the right eye. Postoperatively, this lateralization reversed to show a superiority with the left eye. Visual lateralization may depend on an asymmetrical intertectal interaction.
D000818:Animals; D010856:Columbidae / Q000502:physiology*; D004193:Discrimination Learning / Q000502:physiology; D007839:Functional Laterality / Q000502:physiology*; D013477:Superior Colliculi / Q000502:physiology*; D014795:Visual Pathways / Q000033:anatomy & histology / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology