Correlated Fluctuations of Daytime Skin Temperature and Vigilance

N. Romeijn, E.J.W. van Someren

Research output: Contribution to JournalArticleAcademicpeer-review


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 (T
Original languageEnglish
Pages (from-to)68-77
JournalJournal of Biological Rhythms
Issue number1
Publication statusPublished - 2011


Dive into the research topics of 'Correlated Fluctuations of Daytime Skin Temperature and Vigilance'. Together they form a unique fingerprint.

Cite this