A dream EEG and mentation database (the largest dream database yet)
7 days ago
- #neural correlates of consciousness
- #sleep research
- #dream EEG
- The DREAM database is a collection of standardized datasets on human sleep M/EEG combined with dream report data, aimed at advancing neurocognitive research on consciousness during sleep.
- Initial release includes 20 datasets, 505 participants, and 2643 awakenings, each with sleep M/EEG data and standardized dream report classifications.
- Dream reports are categorized into 'Experience', 'Experience without recall', and 'No experience' to ensure comparability across studies.
- EEG analyses show that dream experiences can be predicted from objective EEG features in both REM and non-REM sleep, with higher accuracy in REM sleep using nonlinear features.
- The database facilitates large-scale research on neural correlates of dreaming, overcoming limitations of small sample sizes in individual studies.
- Behavioral analyses confirm that dream recall frequency decreases with deeper NREM sleep stages and is higher in REM sleep.
- The database is designed to be FAIR (Findable, Accessible, Interoperable, Reusable) and is open to new contributions from the research community.
- Future applications include investigating neural correlates of specific dream contents and understanding consciousness during sleep and other unresponsive states.