Figure 1
From: Information flow in the rat thalamo-cortical system: spontaneous vs. stimulus-evoked activities
source density analysis (CSD) was performed (ii). (c) Click-evoked MUA in the MGv (bottom) and A1 (top). Raster plots for 5 s (i) and discharge rates within a given bin (ii) at 32 recording sites in a representative shank are depicted. The longitudinal axis corresponding to the depth of recording sites as depicted in inset (a-iii). (d) Spontaneous MUA in the MGv (bottom) and A1 (top). Data in (c) and (d) were obtained from the same rat. Red lines indicated burst periods in (c-i) and (d-i).
Electrophysiological measurements of the auditory thalamo-cortical system. (a) Experimental setup. A custom-designed microelectrode array was used to simultaneously measure multi-unit activity (MUA) and local field potentials (LFPs) from the ventral division of the medial geniculate body (MGv) in the thalamus and primary auditory cortex (A1) of anesthetized rats (i). The array was composed of three shanks (6 mm in length) (ii), each of which comprised 15 recording sites for the MGv at the distal edge and 17 recording sites for A1 on the proximal side (iii). (b) Identification of cortical layers. For LFPs in response to a click sound (i), current
