Figure 3.

Comparison of the frequency of different sensations between acupuncture and tactile stimulation. When grouped across all acupoints (N = 45), virtually every sensation demonstrated a significant difference in frequency of experience between acupuncture and tactile stimulation control. In acupuncture, aching was the most frequent sensation, followed by soreness, pressure, tingling, numbness and dull pain. Tingling was the most common sensation in tactile stimulation. Error bars based on 95% Confidence Interval. Fisher's exact test: *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001. For more details on data refer to Table 2.