Effects of whole-body skin cooling on human cognitive processing: A study using SEPs and ERPs.

Effects of whole-body skin cooling on human cognitive processing: A study using SEPs and ERPs.
Am J Physiol Regul Integr Comp Physiol. 2019 Jul 10;:
Authors: Nakata H, Kobayashi F, Lawley JS, Kakigi R, Shibasaki M
Abstract
The present study investigated the effect of whole-body skin cooling on somatosensory ascending processing by utilizing somatosensory-evoked potentials (SEPs) and motor execution as well as inhibitory processing by event-related potentials (ERPs). Fourteen healthy participants wearing a water-perfused suit performed two sessions (Sessions 1 and 2) consisting of SEPs and ERPs with somatosensory Go/No-go paradigms under two conditions (Cold stress and Control) on different days. In Session 2, under the Cold stress condition, whole-body skin cooling was achieved by circulating 20 °C water through the suit for 40 min, while 34 °C water was perfused in the other sessions. The mean skin temperature decreased from 35.0 ± 0.5 °C (Session 1) to 30.4 ± 0.9 °C (Session 2) during whole-body skin cooling, but the internal temperature was maintained. Whole-body skin cooling delayed the peak latencies of N20, P25, and P45 components at C4' of SEPs (all: p < 0.05). Moreover, those of P14, N18, and P22 components at Fz of SEPs, and the Go-P300 component of ERPs were delayed (all: p < 0.05). In contrast, the peak amplitudes of all individual components of SEPs as well as N140 and P300 of ERPs remained unchanged. These re...

Source: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology - July 9, 2019 Category: Physiology Authors: Nakata H, Kobayashi F, Lawley JS, Kakigi R, Shibasaki M Tags: Am J Physiol Regul Integr Comp Physiol Source Type: research