TY - JOUR
T1 - The validity of physiological measures to identify differences in intrinsic cognitive load
AU - Ayres, Paul
AU - Lee, Joy Yeonjoo
AU - Paas, Fred
AU - van Merriënboer, Jeroen J.G.
N1 - Publisher Copyright:
© Copyright © 2021 Ayres, Lee, Paas and van Merriënboer.
PY - 2021/9/10
Y1 - 2021/9/10
N2 - A sample of 33 experiments was extracted from the Web-of-Science database over a 5-year period (2016–2020) that used physiological measures to measure intrinsic cognitive load. Only studies that required participants to solve tasks of varying complexities using a within-subjects design were included. The sample identified a number of different physiological measures obtained by recording signals from four main body categories (heart and lungs, eyes, skin, and brain), as well as subjective measures. The overall validity of the measures was assessed by examining construct validity and sensitivity. It was found that the vast majority of physiological measures had some level of validity, but varied considerably in sensitivity to detect subtle changes in intrinsic cognitive load. Validity was also influenced by the type of task. Eye-measures were found to be the most sensitive followed by the heart and lungs, skin, and brain. However, subjective measures had the highest levels of validity. It is concluded that a combination of physiological and subjective measures is most effective in detecting changes in intrinsic cognitive load.
AB - A sample of 33 experiments was extracted from the Web-of-Science database over a 5-year period (2016–2020) that used physiological measures to measure intrinsic cognitive load. Only studies that required participants to solve tasks of varying complexities using a within-subjects design were included. The sample identified a number of different physiological measures obtained by recording signals from four main body categories (heart and lungs, eyes, skin, and brain), as well as subjective measures. The overall validity of the measures was assessed by examining construct validity and sensitivity. It was found that the vast majority of physiological measures had some level of validity, but varied considerably in sensitivity to detect subtle changes in intrinsic cognitive load. Validity was also influenced by the type of task. Eye-measures were found to be the most sensitive followed by the heart and lungs, skin, and brain. However, subjective measures had the highest levels of validity. It is concluded that a combination of physiological and subjective measures is most effective in detecting changes in intrinsic cognitive load.
UR - http://www.scopus.com/inward/record.url?scp=85115691830&partnerID=8YFLogxK
U2 - 10.3389/fpsyg.2021.702538
DO - 10.3389/fpsyg.2021.702538
M3 - Review article
C2 - 34566780
AN - SCOPUS:85115691830
SN - 1664-1078
VL - 12
JO - Frontiers in Psychology
JF - Frontiers in Psychology
M1 - 702538
ER -