Table 2.

PPC spiking during free whisking is layer- and cell type-specific^a

Layer	Quiescent (Hz)	Free whisking (Hz)
2–4 (n = 33)	0.81 (0.50–1.25)	2.33 (1.36–2.95)*
5 (n = 33)	5.14 (2.39–7.61)	4.45 (3.47–7.19), NS
6 (n = 42)	2.12 (1.43–3.19)	3.46 (2.28–4.63)*
FSU (n = 11)	4.24 (1.94–6.48)	4.13 (1.59–5.47), NS

^aValues are median (first through third quartiles).

*p < 0.0001; Quiescent versus Free whisking (Wilcoxon signed-ranks test).