Correlated Fluctuations of Daytime Skin Temperature and Vigilance
- 20 January 2011
- journal article
- Published by SAGE Publications in Journal of Biological Rhythms
- Vol. 26 (1), 68-77
- https://doi.org/10.1177/0748730410391894
Abstract
Skin temperature shows spontaneous ultradian fluctuations during everyday-life wakefulness. Previous work showed that mild manipulations of skin temperature affect human sleep and vigilance, presumably by influencing neuronal systems involved in both thermal sensing and arousal regulation. We therefore examined whether fluctuations in skin temperature are associated with those in vigilance level under conditions similar to everyday-life situations requiring sustained attention. Eight healthy participants (30.1 ± 8.1 years, M ± SD) participated in a 2-day protocol, during which vigilance and skin temperature were assessed 4 times per day in a silent, dimly lit, temperature-controlled room. Vigilance was assessed by measuring reaction speed and lapses on a novel sustained vigilance task specifically designed to increase lapse rate and range of reaction times. Skin temperature was sampled at 30-second intervals from 3 locations: distal, intermediate, and proximal temperatures were obtained from the middle finger (Tfinger ), the wrist (Twrist), and the infraclavicular area (Tchest), respectively. Furthermore, 3 distal to proximal gradients were calculated. Mixed-effect regression analyses were used to evaluate the association of the fluctuations in temperatures and gradients and those in response speed and lapse probability. Especially the spontaneous fluctuations in proximal temperature were negatively associated with fluctuations in response speed and positively with lapse rate. If individual Tchest temperature ranges were classified into 10 deciles, they accounted for 23% of the variance in response speed and 11% of the variance in lapse rate. The findings indicate coupling between the spontaneous fluctuations in skin temperature and vigilance during the day and are compatible with the hypothesis of overlap in brain networks involved in the regulation of temperature and vigilance. From an applied point of view, especially proximal skin temperature assessment may be of use in vigilance monitoring.Keywords
This publication has 28 references indexed in Scilit:
- Reduction of scale invariance of activity fluctuations with aging and Alzheimer's disease: Involvement of the circadian pacemakerProceedings of the National Academy of Sciences of the United States of America, 2009
- Manipulation of skin temperature improves nocturnal sleep in narcolepsyJournal of Neurology, Neurosurgery & Psychiatry, 2008
- The human sleep–wake cycle reconsidered from a thermoregulatory point of viewPhysiology & Behavior, 2007
- Impact of Extended-Duration Shifts on Medical Errors, Adverse Events, and Attentional FailuresPLoS Medicine, 2006
- Transport and industrial safety, how are they affected by sleepiness and sleep restriction?Sleep Medicine Reviews, 2006
- Evaluation of wireless determination of skin temperature using iButtonsPhysiology & Behavior, 2006
- The validity of psychomotor vigilance tasks of less than 10-minute durationBehavior Research Methods, Instruments & Computers, 2004
- Relationships between the Circadian Rhythms of Finger Temperature, Core Temperature, Sleep Latency, and Subjective SleepinessJournal of Biological Rhythms, 2004
- Thermosensitivity of the circadian timing systemSleep and Biological Rhythms, 2003
- Subjective and Objective Sleepiness in the Active IndividualInternational Journal of Neuroscience, 1990