title: Thalamocortical synapses with identified neurons in monkey primary auditory cortex: a combined Golgi/EM and GABA/peptide immunocytochemistry study.
abstract: The objective of this study was to identify neurons in layer IV of the monkey primary auditory cortex (area KA) that are postsynaptic to thalamocortical axon terminals. Thalamocortical axon terminals were labeled by lesion-induced degeneration; neurons postsynaptic to these afferents were labeled by the Golgi/EM method followed by postembedding immunocytochemistry. Five of the six non-pyramidal neurons examined received synapses from thalamocortical axon terminals. All of these cells were immunoreactive for gamma-aminobutyric acid (GABA). One of the cells stained also with an antiserum to somatostatin, and another for cholecystokinin. None of the cells examined were immunoreactive to substance P, and in no instance were two different peptides co-localized within the same GABA-positive neuron.
authors.affiliation: Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA 01730.
authors.forename: P B
authors.initials: PB
authors.lastname: Cipolloni
authors.forename: A
authors.initials: A
authors.lastname: Keller
mesh_terms: D000818:Animals; D001303:Auditory Cortex / Q000166:cytology* / Q000378:metabolism / Q000502:physiology; D002766:Cholecystokinin / Q000378:metabolism*; D005072:Evoked Potentials, Auditory; D008253:Macaca mulatta; D008854:Microscopy, Electron; D013004:Somatostatin / Q000378:metabolism*; D013788:Thalamus / Q000166:cytology* / Q000378:metabolism / Q000502:physiology; D005680:gamma-Aminobutyric Acid / Q000378:metabolism*
chemical_list: D013004:Somatostatin; D005680:gamma-Aminobutyric Acid; D002766:Cholecystokinin