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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
Högskolan i Skövde, Forskningscentrum för Systembiologi. Högskolan i Skövde, Institutionen för biovetenskap. Department of Psychology, University of Turku, Finland. (Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive Neuroscience)ORCID-id: 0000-0002-1926-6138
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. 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.
Högskolan i Skövde, Institutionen för biovetenskap. Högskolan i Skövde, Forskningscentrum för Systembiologi. Department of Psychology, University of Turku, Finland. (Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive neuroscience)ORCID-id: 0000-0002-5133-8664
2019 (Engelska)Ingår i: Journal of Neuroscience, ISSN 0270-6474, E-ISSN 1529-2401, Vol. 39, nr 24, s. 4775-4784, artikel-id 2884-18Artikel i tidskrift (Refereegranskat) 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.

Ort, förlag, år, upplaga, sidor
Society for Neuroscience , 2019. Vol. 39, nr 24, s. 4775-4784, artikel-id 2884-18
Nyckelord [en]
anger, dreaming, emotions, frontal alpha asymmetry, REM sleep
Nationell ämneskategori
Naturvetenskap Psykologi
Forskningsämne
Kognitiv neurovetenskap och filosofi
Identifikatorer
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
Tillgänglig från: 2019-05-16 Skapad: 2019-05-16 Senast uppdaterad: 2019-08-06Bibliografiskt granskad

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Revonsuo, AnttiValli, Katja

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