A multifaceted investigation of the link between mental fatigue and task disengagement

Jesper F. HOPSTAKEN, Dimitri VAN DER LINDEN, Arnold B. BAKKER, Michiel A. J. KOMPIER

Research output: Journal PublicationsJournal Article (refereed)

88 Citations (Scopus)

Abstract

Mental fatigue is often characterized by reduced motivation for effortful activity and impaired task performance. We used subjective, behavioral (performance), and psychophysiological (P3, pupil diameter) measures during an n-back task to investigate the link between mental fatigue and task disengagement. After 2h, we manipulated the rewards to examine a possible reengagement effect. Analyses showed that, with increasing fatigue and time-on-task, performance, P3 amplitude, and pupil diameter decreased. After increasing the rewards, all measures reverted to higher levels. Multilevel analysis revealed positive correlations between the used measures with time-on-task. We interpret these results as support for a strong link between task disengagement and mental fatigue.
Original languageEnglish
Pages (from-to)305-315
Number of pages11
JournalPsychophysiology
Volume52
Issue number3
Early online date26 Sep 2014
DOIs
Publication statusPublished - Mar 2015

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Keywords

  • Fatigue
  • Motivation
  • P3
  • Pupil diameter
  • Task engagement

Cite this

HOPSTAKEN, J. F., VAN DER LINDEN, D., BAKKER, A. B., & KOMPIER, M. A. J. (2015). A multifaceted investigation of the link between mental fatigue and task disengagement. Psychophysiology, 52(3), 305-315. https://doi.org/10.1111/psyp.12339