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. 2011 Jul 27;6(7):e22665. doi: 10.1371/journal.pone.0022665

Figure 2. Effects of scratching and other stimuli on spontaneous activity.

Figure 2

A: Averaged PSTHs (bins: 1 sec) show, from left to right, unit responses to scratch (n = 61), brush (n = 10) and pinch (n = 3). Gray error bars: SEM. The 60-sec duration of scratching, but not brush, markedly depressed firing. The 5-sec duration of pinch also markedly depressed firing. B: Averaged PSTHs (bins: 1 sec) show, from left to right, unit responses to 48°C, 52°C and 56°C heat stimuli (n = 6). Gray error bars: SEM. Upper trace shows skin temperature. Heat stimuli markedly depressed firing in a temperature-dependent manner, followed by rebound.