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EEG Frontal Alpha Asymmetry and Dream Affect: Alpha Oscillations Over the Right Frontal Cortex During REM Sleep and Pre-Sleep Wakefulness Predict Anger in REM Sleep Dreams
University of Skövde, The Systems Biology Research Centre. University of Skövde, School of Bioscience. Department of Psychology, University of Turku, Finland. (Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive Neuroscience)ORCID iD: 0000-0002-1926-6138
University of Skövde, School of Bioscience. University of Skövde, The Systems Biology Research Centre. Department of Psychology, University of Turku, Finland. (Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive neuroscience)ORCID iD: 0000-0002-2771-1588
Department of Psychology, University of Cambridge, UK.
University of Skövde, School of Bioscience. University of Skövde, The Systems Biology Research Centre. Department of Psychology, University of Turku, Finland. (Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive neuroscience)ORCID iD: 0000-0002-5133-8664
2019 (English)In: Journal of Neuroscience, ISSN 0270-6474, E-ISSN 1529-2401, Vol. 39, no 24, p. 4775-4784, article id 2884-18Article in journal (Refereed) Published
Abstract [en]

Affective experiences are central not only to our waking life but also to rapid eye movement(REM) sleep dreams. Despite our increasing understanding of the neural correlates of dreaming, we know little about the neural correlates of dream affect. Frontal alpha asymmetry (FAA) is considered a marker of affective states and traits as well as affect regulation in the waking state. Here, we explored whether FAA during REM sleep and during evening resting wakefulness is related to affective experiences in REM sleep dreams. EEG recordings were obtained from 17humanparticipants (7men)whospent 2 nights in the sleep laboratory. Participants were awakened 5minafter the onset of everyREMstage after which they provided a dream report and rated their dream affect. Two-minute preawakening EEG segments were analyzed. Additionally, 8 min of evening presleep and morning postsleep EEG were recorded during resting wakefulness. Mean spectral power in the alpha band (8 –13 Hz and correspondingFAAwere calculated over the frontal (F4-F3) sites. Results showed that FAA during REM sleep, and during evening resting wakefulness, predicted ratings of dream anger. This suggests that individuals with greater alpha power in the right frontal hemisphere may be less able to regulate (i.e., inhibit) strong affective states, such as anger, in dreams. Additionally, FAA was positively correlated across wakefulness and REM sleep. Together, these findings imply that FAA may serve as a neural correlate of affect regulation not only in the waking but also in the dreaming state.

Place, publisher, year, edition, pages
Society for Neuroscience , 2019. Vol. 39, no 24, p. 4775-4784, article id 2884-18
Keywords [en]
anger, dreaming, emotions, frontal alpha asymmetry, REM sleep
National Category
Natural Sciences Psychology
Research subject
Consciousness and Cognitive Neuroscience
Identifiers
URN: urn:nbn:se:his:diva-16892DOI: 10.1523/JNEUROSCI.2884-18.2019ISI: 000471130300011PubMedID: 30988168Scopus ID: 2-s2.0-85068196629OAI: oai:DiVA.org:his-16892DiVA, id: diva2:1316142
Available from: 2019-05-16 Created: 2019-05-16 Last updated: 2019-08-06Bibliographically approved

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The full text will be freely available from 2019-12-13 00:01
Available from 2019-12-13 00:01

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Revonsuo, AnttiValli, Katja

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