Mental time travel to the future might be reduced in sleep |
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| Institution: | 1. Department of Nutrition & Metabolism, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom;2. Department of Physiology and Biochemistry, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom |
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| Abstract: | We present a quantitative study of mental time travel to the future in sleep. Three independent, blind judges analysed a total of 563 physiology-monitored mentation reports from sleep onset, REM sleep, non-REM sleep, and waking. The linguistic tool for the mentation report analysis is based on established grammatical and cognitive-semantic theories and has been validated in previous studies. Our data indicate that REM and non-REM sleep must be characterized by a reduction in mental time travel to the future, which would support earlier physiological evidence at the level of brain function. |
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| Keywords: | REM Non-REM Mentation reports Sleep onset Hypnagogic hallucinations Quantitative linguistic analysis Linguistics |
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