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. 2013 Jun 24;110(28):E2635–E2644. doi: 10.1073/pnas.1309728110

Fig. 2.

Fig. 2.

Response properties of VPL and S1 neurons. In all panels, results for VPL and S1 are shown in orange and blue, respectively. (A) Spike density function of a VPL neuron that responded to the sinusoidal stimulus (gray bar). The width of the Gaussian filter used to smooth the cell's spike trains was 5 (orange) or 20 ms (black). (B) Firing rate (mean ± SD) as a function of stimulus amplitude for the VPL neuron in A. Points correspond to the average firing rate evoked during the stimulation period. Black lines are linear fits. Slope (s) values are indicated. (C) Spike density function for an S1 neuron that responded to the sinusoidal stimulus (gray bar). The width of the Gaussian filter used to smooth the cell's spike trains was 5 (blue) or 20 ms (black). (D) Firing rate (mean ± SD) as a function of stimulus amplitude for the S1 neuron in C. Points correspond to the average firing rate evoked during the stimulation period. Black lines are linear fits. Slope (s) values are indicated. (E) Cumulative distributions of baseline firing rates for VPL and S1 populations. The median baseline rate was significantly higher in VPL than in S1 (VPL: 17.5 ± 1.2 spikes/s, n = 74; S1: 10 ± 1.04 spikes/s, n = 76; P = 0.00024). (F) Cumulative distributions of slope values for VPL and S1 neurons. Slopes were obtained from plots like those in B and D. The median slope was significantly higher in S1 than in VPL [VPL: 0.96 ± 0.08 spikes/(s μm), n = 74; S1: 1.41 ± 0.08 spikes/(s μm), n = 76; P = 0.0011].