Figure 3
From: "First pain" in humans: convergent and specific forebrain responses
Latency of major positive peak and pain intensity (NRS). A) Latency of the first major positivity in the heat-evoked potential at the vertex (electrode Cz). Latency of 51°C stimuli were significantly shorter than latency of 41°C stimuli (*p = 0.04). B) Average pain intensity ratings obtained during scanning. Ratings of 51°C stimuli were significantly more intense than ratings of 41°C stimuli (*p = 0.018). Values are mean ± standard deviation.