Is GABA neurotransmission enhanced in auditory thalamus relative to inferior colliculus?

Gamma-aminobutyric acid (GABA) is the major inhibitory neurotransmitter in the central auditory system. Sensory thalamic structures show high levels of non-desensitizing extrasynaptic GABA A receptors (GABA A Rs) and a reduction in the redundancy of coded information. The present study compared the inhibitory potency of GABA acting at GABA A Rs between the inferior colliculus (IC) and the medial geniculate body (MGB) using quantitative in vivo,...