A possible thalamic component of the auditory evoked potential in the rat.
An attempt is described to identify a thalamic component of the auditory evoked potential in the rat. Auditory potentials were recorded simultaneously from skull locations over the thalamus and the primary auditory cortex. From over the thalamus a slow positive response was recorded with a mean peak latency of 7.3 ms. This preceded the primary cortical response by 1.2 ms. It is concluded that this potential is a more likely candidate for a thalamic response than either a late high frequency component of the brainstem auditory evoked potential or else one of the early components of the middle latency auditory evoked potential.
Shaw
N A
NA
Department of Physiology, School of Medicine, University of Auckland, New Zealand.
D000818:Animals; D001303:Auditory Cortex / Q000502:physiology*; D005072:Evoked Potentials, Auditory; D008297:Male; D051381:Rats; D013003:Somatosensory Cortex / Q000502:physiology; D013788:Thalamus / Q000502:physiology*; D013997:Time Factors