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The effect of whole body cooling on cognitive processing
Author(s) -
Sawai Norie,
Kobayashi Fumino,
Kubo Hiroko,
Nakata Hiroki,
Shibasaki Manabu
Publication year - 2019
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.2019.33.1_supplement.lb439
Subject(s) - session (web analytics) , somatosensory system , heat stress , cognition , audiology , event related potential , latency (audio) , chemistry , electrophysiology , cold stress , psychology , neuroscience , medicine , zoology , computer science , biology , biochemistry , telecommunications , world wide web , gene
We previously demonstrated that heat stress reduced the peak amplitude of the P300 component of event‐related potentials (ERPs), but shortened or did not change the peak latencies of the P300 component and reaction time. Cold exposure is thought to decrease exercise or working performance, but the effect of body cooling on cognitive processing remains unknown. We hypothesized that whole‐body cooling decreases the peak amplitudes of the P300 component and delays its peak latencies. Fourteen healthy subjects, wearing a water‐perfused suit, performed somatosensory Go/No‐go paradigms twice (sessions 1 and 2) under two conditions (Cold and Control) on different days. Whole‐body cooling was achieved by circulating 20 °C water through the suit. Only session 2 under the Cold condition was performed during whole‐body cooling, while the other sessions were performed with circulating 34 °C water. Passive cold stress for 40 min decreased the mean skin temperature from 35.0 ± 0.5 °C (Session 1) to 30.4 ± 0.9 °C (Session 2), while the internal temperature (external canal temperature) was maintained. Passive cold stress delayed the peak latency of the Go‐P300 component on ERPs, while the reaction time did not change. The peak amplitudes of N140 and P300 on ERPs did not change. These results suggest that mild whole‐body cooling slows the nerve conduction velocity on higher cognitive functioning but does not change the amount of neural activity. Support or Funding Information JSPS 18H03166 This abstract is from the Experimental Biology 2019 Meeting. There is no full text article associated with this abstract published in The FASEB Journal .