Fig. 7: Population coding dynamics across the cortex during the TPDT vs. the LCT. | Nature Communications

Fig. 7: Population coding dynamics across the cortex during the TPDT vs. the LCT.

From: A continuum of invariant sensory and behavioral-context perceptual coding in secondary somatosensory cortex

Fig. 7

Percentage of neurons with significant coding (Supplementary Fig. 3) as a function of time during the TPDT (right, a–c) or the LCT (left, d–f). Traces refer to P1 (cyan), P2 (green), class (pink), and decision coding (black). Neurons were recorded from different cortical areas: Area 3b (TPDT [a, n = 161] and LCT [d, n = 92]), S2 (TPDT [b, n = 1646] and LCT [e, 313]), and DPC (TPDT [c, n = 1574] and LCT [f, n = 462]). Note that area 3b is included in the primary somatosensory cortex (S1). The same y-axis scale (0 to 80%) was used across panels to facilitate comparison. Area 3b demonstrates an entire network commitment to representing stimulus. In S2, the sensory representation diminishes and the categorical representation emerges. The emergent categorical representation is, in turn, the only activity code observed for DPC.

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