Afferents to the anterior suprasylvian gyrus (ASG) from the medial geniculate body of cat were demonstrated by means of autoradiography. [3H]Glycine was injected stereotactically into the medial division of the medial geniculate body (mMGB). After a 3-day survival period, the auditory cortices and the ASG were excised. Labelled terminals were found in the ASG, in the anterior auditory field (AAF) and in the acoustic cortex (AI). The density of labelling was highest in the ASG and lower in the AAF and AI. The afferents from the mMGB made synaptic contacts in the 3rd layer of the cortices examined.
- polysensory cortices
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