Abstract
This study investigates if anodal transcranial direct current stimulation (tDCS) of areas above the motor cortex (C3) influences the quantity and quality of spontaneous motor imagery experienced in REM sleep. A randomized triple-blinded design was used, combining neurophysiological techniques with a tool of quantitative mentation report analysis developed from cognitive linguistics and generative grammar. The results indicate that more motor imagery, and more athletic motor imagery, is induced by anodal tDCS in comparison to cathodal and sham tDCS. This insight may have implications beyond basic consciousness research. Motor imagery in REM sleep has been hypothesized to serve the rehearsal of motor movements, which benefits later motor performance. Electrophysiological manipulations of motor imagery in REM sleep could in the long run be used for rehabilitative tDCS protocols benefitting temporarily immobile clinical patients, especially those who cannot perform specific motor imagery tasks - such as dementia patients, infants with developmental and motor disorders, and coma patients.
Original language | English |
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Pages (from-to) | 57-65 |
Number of pages | 9 |
Journal | Neuropsychologia |
Volume | 86 |
Early online date | 11 Apr 2016 |
DOIs | |
Publication status | Published - 1 Jun 2016 |
Keywords
- Brain stimulation
- Consciousness
- Effects of tDCS on human consciousness
- Mentation reports
- Motor agency analysis
- Motor system activation
- Phenomenology
- Quantitative linguistic analysis
- tDCS
ASJC Scopus subject areas
- Behavioral Neuroscience
- Cognitive Neuroscience
- Experimental and Cognitive Psychology