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Understanding Dreams: Types, Recall Rates, and Lucid Dreaming Insights

This session explores the nature of dreams, identifying them as mental activities recalled during sleep. It highlights the differences between REM and NREM sleep, revealing that dream recall rates are significantly high, especially during REM awakenings. The concept of lucid dreaming is introduced, where dreamers are aware that they are dreaming. The session also discusses polysomnography methods for analyzing sleep stages, including sleep latency and efficiency, while referencing dream visualization techniques such as EEG and fMRI.

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Understanding Dreams: Types, Recall Rates, and Lucid Dreaming Insights

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Presentation Transcript

  1. Consciousness Session 4

  2. What is a dream? • A dream or dream report is the recollection of mental activity which has occurred during sleep.

  3. REM or NREM? • dream recall rates from NREM awakeningsarequite high (43.0%) • even when the mean recall for REM awakenings is higher (81.9%).

  4. Lucid dreaming • a form of dreaming that is very interesting for this line of research – is defined as dreams where the dreamer is aware – while dreaming – that he/she is dreaming (LaBerge 1985).

  5. polysomnographic recording is divided into 30 s epochs • Awake • NREM sleep 1 (sleep onset) • NREM sleep 2 (normal sleep) • slow wave sleep (NREM) • REM sleep

  6. electroencephalogram (EEG), the electrooculogram (EOG), and the chin electromyogram (EMG) • 960 epochs for 8 h • sleep latency • sleep efficiency • percentage of the sleep stages • other parameters.

  7. Dream Visualization • Inception movie

  8. Methods to visualize perception • EEG • fMRI • FNIRS

  9. مصرف کننده کوکایین مصرف کننده قبلی کوکایین فرد سالم

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