Title
Time perception and timed decision task performance during passive heat stress
Author
Kingma, B.R.M.
Roijendijk, L.M.M.
van Maanen, L.
van Rijn, H.
Beurden, M.H.P.H.
Publication year
2021
Abstract
This study investigates the hypotheses that during passive heat stress, the change in perception of time and change in accuracy of a timed decision task relate to changes in thermophysiological variables gastrointestinal temperature and heart rate (HR), as well as subjective measures of cognitive load and thermal perception. Young adult males (N = 29) participated in two 60-min head-out water immersion conditions (36.5°C-neutral and 38.0°C-warm). Cognitive task measurements included accuracy (judgment task), response time (judgment ask), and time estimation (interval timing task). Physiological measurements included gastrointestinal temperature and heart rate. Subjective measurements included cognitive task load (NASA-TLX), rate of perceived exertion, thermal sensation, and thermal comfort. Gastrointestinal temperature and HR were significantly higher in warm versus neutral condition (gastrointestinal temperature: 38.4 ± 0.2°C vs. 37.2 ± 0.2°C, p < 0.01; HR: 105 ± 8 BPM vs. 83 ± 9 BPM, p < 0.01). The change in accuracy was significantly associated with the change in gastrointestinal temperature, and attenuated by change in thermal sensation and change in HR (r2=0.40, p< 0.01). Change in response time was significantly associated with the change in gastrointestinal temperature (r2=0.26, p< 0.002), and change in time estimation was best explained by a change in thermal discomfort (r2=0.18, p< 0.01). Changes in cognitive performance during passive thermal stress are significantly associated with changes in thermophysiological variables and thermal perception. Although explained variance is low (
Subject
Thermoregulation
Passive heat stress
Cognitive performance
Heat
Time perception
Human
TPI - Training & Performance Innovations
BSS - Behavioural and Societal Sciences
To reference this document use:
http://resolver.tudelft.nl/uuid:9d08d511-176c-4e1d-9e30-6c204540da9d
DOI
https://doi.org/10.1080/23328940.2020.1776925
TNO identifier
877664
Source
Temperature, 8 (8), 53-63
Document type
article