Dement & Kleitman crossword

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Across
  1. 3. Stage of sleep associated with rapid eye movements.
  2. 6. Participants were asked to recall specific events from this during REM sleep.
  3. 7. Dement and Kleitman’s primary research method.
  4. 8. Device used to measure electrical activity in the brain during sleep
  5. 12. A pattern of electrical brain activity measured during the study.
  6. 13. Time duration in minutes for REM cycles measured (either 5 or ___)
Down
  1. 1. Participants were woken up using this device at specific points during the study.
  2. 2. The stage of sleep characterized by low voltage, mixed frequency brain waves and high levels of dream recall.
  3. 4. A control used in the study to reduce experimental bias during dream recall.
  4. 5. The total number of male and female participants in the study (9 ___).
  5. 7. Abbreviation for the machine used to measure eye movements during sleep.
  6. 9. The cycle containing both NREM and REM sleep.
  7. 10. The study’s dependent variable: the presence or absence of a dream as reported by participants.
  8. 11. Abbreviation for the type of eye movement monitored during the experiment.
  9. 14. The type of movement associated with REM sleep.