Electrophysiological identification of a visual area in shark telencephalon.
Optic nerve stimulation in the shark evokes short-latency telencephalic field potentials localized to the ipsilateral, posterior central nucleus. Such a well-defined visual area in elasmobranch telencephalon further challenges classical formulations of forebrain evolution. Moreover, its ipsilateral representation confirms recent evidence for a crossed thalamotelencephalic visual projection.
D000818:Animals; D004558:Electric Stimulation; D005071:Evoked Potentials; D009900:Optic Nerve; D012754:Sharks / Q000033:anatomy & histology*; D013687:Telencephalon / Q000033:anatomy & histology* / Q000502:physiology; D014795:Visual Pathways / Q000033:anatomy & histology* / Q000502:physiology