Why the study?
The study aimed to highlight patterns of brain activations and autonomic activity when confronted with high mental workload and the threat of auditory stressors.
Does the threat of auditory stressors alter brain activation patterns and autonomic activity during a complex cognitive task?
Comparison
Safe vs aversive conditions
Design
fMRI study
Key result
High mental workload and auditory stressors induced recruitment of the executive control network and disengagement of the default mode network without decreasing task performance.
Authors
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fMRI network shifts may objectively index mental effort under stress; hypothesis-generating for clinical translation.
Cross-Sectional (n=20)
Does the threat of auditory stressors alter brain activation patterns and autonomic activity during a complex cognitive task?
Measuring the balance between executive control, salience, and default mode networks via fMRI may provide an objective assessment of mental state and effort under stress.
Causse et al. (2021) conducted a cross-sectional in High mental workload and stress (n=20). High mental workload and threat of auditory stressors vs. Safe conditions was evaluated on Patterns of brain activations (fMRI) and autonomic activity (heart rate and pupil diameter). High mental workload and auditory stressors induced recruitment of the executive control network and disengagement of the default mode network without decreasing task performance.
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