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- Noreika, ValdasDepartment of Psychology, University of Cambridge, United Kingdom / Department of Psychology and Speech-Language Pathology, University of Turku, Finland (author)
Modulating dream experience : Noninvasive brain stimulation over the sensorimotor cortex reduces dream movement
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2020-04-21
- Springer,2020
- electronicrdacarrier
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- LIBRIS-ID:oai:DiVA.org:his-18428
- https://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18428URI
- https://doi.org/10.1038/s41598-020-63479-6DOI
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- Language:English
- Summary in:English
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Notes
- Recently, cortical correlates of specific dream contents have been reported, such as the activation of the sensorimotor cortex during dreamed hand clenching. Yet, despite a close resemblance of such activation patterns to those seen during the corresponding wakeful behaviour, the causal mechanisms underlying specific dream contents remain largely elusive. Here, we aimed to investigate the causal role of the sensorimotor cortex in generating movement and bodily sensations during REM sleep dreaming. Following bihemispheric transcranial direct current stimulation (tDCS) or sham stimulation, guided by functional mapping of the primary motor cortex, naive participants were awakened from REM sleep and responded to a questionnaire on bodily sensations in dreams. Electromyographic (EMG) and electroencephalographic (EEG) recordings were used to quantify physiological changes during the preceding REM period. We found that tDCS, compared to sham stimulation, significantly decreased reports of dream movement, especially of repetitive actions. Other types of bodily experiences, such as tactile or vestibular sensations, were not affected by tDCS, confirming the specificity of stimulation effects to movement sensations. In addition, tDCS reduced EEG interhemispheric coherence in parietal areas and affected the phasic EMG correlation between both arms. These findings show that a complex temporal reorganization of the motor network co-occurred with the reduction of dream movement, revealing a link between central and peripheral motor processes and movement sensations of the dream self. tDCS over the sensorimotor cortex interferes with dream movement during REM sleep, which is consistent with a causal contribution to dream experience and has broader implications for understanding the neural basis of self-experience in dreams. © 2020, The Author(s).
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Medicinska och farmaceutiska grundvetenskaper Neurovetenskaper hsv//swe
- MEDICAL AND HEALTH SCIENCES Basic Medicine Neurosciences hsv//eng
- SAMHÄLLSVETENSKAP Psykologi Psykologi hsv//swe
- SOCIAL SCIENCES Psychology Psychology hsv//eng
- adult
- article
- brain depth stimulation
- controlled study
- dreaming
- female
- human
- human experiment
- male
- primary motor cortex
- questionnaire
- REM sleep
- sensation
- sensorimotor cortex
- transcranial direct current stimulation
- Kognitiv neurovetenskap och filosofi
- Consciousness and Cognitive Neuroscience
Added entries (persons, corporate bodies, meetings, titles ...)
- Windt, Jennifer M.Department of Philosophy, Monash University, Clayton, VIC, Australia (author)
- Kern, MarkusTranslational Neurotechnology Lab, University of Freiburg, Germany (author)
- Valli, Katja,1973-Högskolan i Skövde,Institutionen för biovetenskap,Forskningsmiljön Systembiologi,Department of Psychology and Speech-Language Pathology, University of Turku, Finland,Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive Neuroscience(Swepub:his)vala (author)
- Salonen, TiinaDepartment of Psychology and Speech-Language Pathology, University of Turku, Finlan (author)
- Parkkola, RiittaDepartment of Radiology, University and University Hospital of Turku, Finland (author)
- Revonsuo, AnttiHögskolan i Skövde,Institutionen för biovetenskap,Forskningsmiljön Systembiologi,Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive Neuroscience(Swepub:his)reva (author)
- Karim, Ahmed A.Department of Psychiatry and Psychotherapy, University of Tübingen, Germany / Department of Psychology and Neuroscience, Jacobs University, Bremen, Germany / Department of Health Psychology and Neurorehabilitation, SRH Mobile University, Riedlingen, Germany (author)
- Ball, TonioTranslational Neurotechnology Lab, University of Freiburg, Germany (author)
- Lenggenhager, BignaDepartment of Psychology, University of Zurich, Switzerland (author)
- Department of Psychology, University of Cambridge, United Kingdom / Department of Psychology and Speech-Language Pathology, University of Turku, FinlandDepartment of Philosophy, Monash University, Clayton, VIC, Australia (creator_code:org_t)
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- In:Scientific Reports: Springer10:12045-2322
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