Modulating dream experience: Noninvasive brain stimulation over the sensorimotor cortex reduces dream movement

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Modulating dream experience : Noninvasive brain stimulation over the sensorimotor cortex reduces dream movement

Noreika, Valdas (författare): Department of Psychology, University of Cambridge, United Kingdom / Department of Psychology and Speech-Language Pathology, University of Turku, Finland

Windt, Jennifer M. (författare): Department of Philosophy, Monash University, Clayton, VIC, Australia

Kern, Markus (författare): Translational Neurotechnology Lab, University of Freiburg, Germany

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Valli, Katja, 1973- (författare): 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

Salonen, Tiina (författare): Department of Psychology and Speech-Language Pathology, University of Turku, Finlan

Parkkola, Riitta (författare): Department of Radiology, University and University Hospital of Turku, Finland

Revonsuo, Antti (författare): Högskolan i Skövde,Institutionen för biovetenskap,Forskningsmiljön Systembiologi,Kognitiv neurovetenskap och filosofi, Consciousness and Cognitive Neuroscience

Karim, Ahmed A. (författare): 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

Ball, Tonio (författare): Translational Neurotechnology Lab, University of Freiburg, Germany

Lenggenhager, Bigna (författare): Department of Psychology, University of Zurich, Switzerland

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2020-04-21
2020
Engelska.
Ingår i: Scientific Reports. - : Springer. - 2045-2322. ; 10:1

Relaterad länk:: https://doi.org/10.1...; visa fler...; https://his.diva-por... (primary) (Raw object); https://www.nature.c...; https://urn.kb.se/re...; https://doi.org/10.1...; visa färre...

Tidskriftsartikel (refereegranskat)

Abstract Ämnesord

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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).

Ämnesord

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)

Nyckelord

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

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