A combined use of surface and depth microelectrode arrays characterized the auditory thalamo-cortical system in rats.
Tonotopic and latency maps were found in the ventral division of the auditory thalamus.
Microstimulation in the thalamus elicited layer-specific, region-specific and tonotopic activation in the auditory cortex.
Thus, the thalamo-cortical anatomical projection in rats was electrophysiologically confirmed for the first time.