Affect and arousal in insomnia: through a lens of neuroimaging studies
Abstract: Purpose of Review
Previous research has struggled with identifying clear-cut, objective counterparts to subjective distress in insomnia. Approaching this discrepancy with a focus on hyperarousal and dysfunctional affective processes, studies examining brain structures and neural networks involved in affect and arousal are reviewed and conclusions for an updated understanding of insomnia are drawn.
Recent Findings
Recent studies found that amygdala reactivity, morphometry and adaptation in insomnia are altered, indicating that processing of negative stimuli is intensified and more lasting. Also, patients with insomnia show aberrant connectivity in the default mode network (DMN) and the salience network (SN), which is associated with subjective sleep disturbances, hyperarousal, maladaptive emotion regulation and disturbed integration of emotional states. The limbic circuit is assumed to play a crucial role in enhanced recall of negative experiences.
Summary
There is reason to consider insomnia as a disorder of affect and arousal. Dysregulation of the limbic circuit might perpetuate impaired connectivity in the DMN and the SN. However, the interplay between the networks is yet to be researched
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Notes
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Current psychiatry reports. - 22, 9 (2020) , 44, ISSN: 1535-1645
- Keyword
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Schlafstörung
Limbisches System
- Event
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Veröffentlichung
- (where)
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Freiburg
- (who)
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Universität
- (when)
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2020
- Creator
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Schiel, Julian E.
Holub, Florian
Petri, Roxana
Leerssen, Jeanne
Tamm, Sandra
Tahmasian, Masoud
Riemann, Dieter
Spiegelhalder, Kai
- DOI
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10.1007/s11920-020-01173-0
- URN
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urn:nbn:de:bsz:25-freidok-1667886
- Rights
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Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:45 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Schiel, Julian E.
- Holub, Florian
- Petri, Roxana
- Leerssen, Jeanne
- Tamm, Sandra
- Tahmasian, Masoud
- Riemann, Dieter
- Spiegelhalder, Kai
- Universität
Time of origin
- 2020
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