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Figure 2 | Molecular Pain

Figure 2

From: Types of skin afferent fibers and spinal opioid receptors that contribute to touch-induced inhibition of heart rate changes evoked by noxious cutaneous heat stimulation

Figure 2

Comparison of unitary activity of skin afferents in response to microcone and flat disc touch. A hatched column indicates data obtained during touch. Data are expressed as the mean ± the standard deviation. The discharge rate of Aβ, Aδ, and C afferent units was compared (A-C, respectively) using a 2 × 2 repeated measures analysis of variance (ANOVA) with “conditions” (pre-touch and during touch) and “touch type” (microcone and flat disc) followed by the Bonferroni’s multiple comparison test. The results showed no significant interaction between “conditions” and “touch type” was observed in Aβ afferent units (p = 0.16); however, significant interactions were observed in Aδ and C afferent units (p = 0.032 and p = 0.048, respectively). * p < 0.05, ** p < 0.01, *** p < 0.001; a significant difference from a pre-touch value, ## p < 0.01; a significant difference between microcone and flat disc touch. n.s.; not significant.

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Molecular Pain

ISSN: 1744-8069

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