Connections of the auditory cortex of the brush-tailed possum, Trichosurus vulpecula.
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.
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
D006735:Horseradish Peroxidase