title: Connections of the auditory cortex of the brush-tailed possum, Trichosurus vulpecula.
abstract: The afferent connections of the auditory cortex of the acallosal marsupial Trichosurus vulpecula have been studied using the retrograde transport of horseradish peroxidase. The enzyme was applied by electrophoresis from a micropipette previously used to define physiologically the organization of the auditory cortex. Three major (lateral, dorsomedial and ventromedial) sectors of the medial geniculate contribute axons to the ipsilateral auditory cortex; the connections from at least the lateral sector are topographically arranged. Axons reach the auditory field from the contralateral cortex by way of the anterior commissure and fasciculus aberrans.
mesh_terms: D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D001303:Auditory Cortex / Q000502:physiology*; D001306:Auditory Pathways / Q000502:physiology*; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology; D005260:Female; D005829:Geniculate Bodies / Q000502:physiology; D006735:Horseradish Peroxidase; D008297:Male; D009893:Opossums / Q000502:physiology*; D009435:Synaptic Transmission
chemical_list: D006735:Horseradish Peroxidase