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Emotion Regulation Failures Are Preceded by Local Increases in Sleep-like Activity
Giulia Avvenuti1, Davide Bertelloni2, Giada Lettieri1
1IMT School for Advanced Studies Lucca, Italy.
Journal of Cognitive Neuroscience
|October 7, 2021
Summary
Failures in emotion suppression may be caused by local sleep-like brain activity. Shorter sleep duration is linked to more errors and increased frontal sleep-like activity during emotion suppression failures.
Area of Science:
- Neuroscience
- Cognitive Science
- Psychology
Background:
- Emotion self-regulation involves cognitive and behavioral strategies.
- Successful emotion regulation engages fronto-cingulate and parietal brain networks.
- Mechanisms behind emotion suppression failures remain unclear.
Purpose of the Study:
- Investigate the functional mechanisms of emotion suppression failures.
- Examine the role of sleep-like brain activity in emotion regulation.
- Explore the link between sleep duration and emotion suppression performance.
Main Methods:
- Analysis of video and high-density EEG recordings from 20 healthy adults.
- Comparison of emotion suppression (ES) and free expression tasks over two days.
- Correlation analysis between sleep duration, behavioral errors, and brain activity.
Main Results:
- Local increases in sleep-like activity (1-4 Hz) preceded facial changes during ES.
- These increases occurred in brain areas critical for emotional control, including the insula and anterior cingulate cortex.
- Shorter sleep duration correlated with more behavioral errors and higher frontal sleep-like activity during ES failures.
Conclusions:
- Local sleep-like brain activity may cause human emotion suppression failures.
- This finding offers a functional explanation for the link between sleep deprivation, frontal activity, and emotional dysregulation.
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