GABA-immunoreactive neurons in the rat dorsal lateral geniculate nucleus: light microscopical observations

The dorsal lateral geniculate nucleus (dLGN) of the rat was investigated immunocytochemically using an antiserum against the inhibitory neurotransmitter gamma-aminobutyric acid (GABA). The appearance of GABA-immunopositive dendrites, dendritic appendages, and the size and shape of neuronal somata closely resembled the putative intrinsic neurons described previously in Golgi-impregnation studies of the rat dLGN.