1 / 56

This stage number appears in both REM and NREM sleep

This stage number appears in both REM and NREM sleep. Stage 1. Most healthful stage; 50% of adult sleep is here. Stage 2. Dreams occur in this stage. Stage 1 REM. Closest stage to consciousness. Stage 1 NREM. Least EEG activity appears here. Stage 4. Stage 2 NREM. Sleep state.

chaim
Download Presentation

This stage number appears in both REM and NREM sleep

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. This stage number appears in both REM and NREM sleep • Stage 1

  2. Most healthful stage; 50% of adult sleep is here • Stage 2

  3. Dreams occur in this stage • Stage 1 REM

  4. Closest stage to consciousness • Stage 1 NREM

  5. Least EEG activity appears here • Stage 4

  6. Stage 2 NREM • Sleep state

  7. Stage 1 REM • Dream State

  8. Stage 1 NREM • Hypnopompic State

  9. Stage 3 NREM • Hypnagogic state

  10. Stage 4 NREM • Hypnagogic state

  11. Slowest brain waves • Delta

  12. Bursts of electrical energy seen in stage 2 • Sleep spindles

  13. Seen during alert wakefulness • Beta waves

  14. Seen in relaxed wakefulness, early stage 1 NREM • Alpha waves

  15. Follow alpha waves in stage 1 and 2 NREM • Theta waves

  16. Leading cause of death in infants • Sudden Infant Death Syndrome (SIDS)

  17. Not able to fall or stay asleep • Insomnia

  18. Two hypersomnias • Narcolepsy and apnea

  19. Bedwetting • Enuresis

  20. Night terrors and sleepwalking are 2 types of this • Parasomnias

  21. Measures electrical activity in the brain • Electroencephalogram (EEG)

  22. Measures eye movement • Electro-oculograph EOG

  23. Measures electrical impulses through muscle • Electromyogram EMG

  24. Measures heart rate • Electrocardiograph (EKG)

  25. Amplifies signals and produces record of physiological changes • Polysomnograph

  26. Difference between hours of sleep needed and gotten. • Sleep debt

  27. Short episodes of sleep that intrude on wakefulness • microsleeps

  28. REM-deprived people exhibit this when allowed to sleep naturally • REM Rebound

  29. East-west travel is an example of this, which is easier to adapt to • Phase delay

  30. Older adults spend little time in this state of sleep, thus awakening often • Hypnagogic

  31. Internal biological changes that occur daily • Circadian rhythms

  32. Hormone involved in inducing sleep • Melatonin

  33. Neurons in hypothalamus that control sleep-wake cycle • Suprachiasmatic Nucleus

  34. Gland that secretes melatonin • Pineal

  35. Length of free running sleep-wake cycle • 25 hours

  36. Temperature fluctuations without sleep counter this theory • Cool off brain

  37. We sleep at night due to this theory • Self-protection (out of harm’s way)

  38. Common sense theory • Rest/ energy conservation

  39. REM sleep is important for this • Neural development

  40. Francis Crick believes sleep allows us to do this • Unlearn or purge stimulus overload

  41. Sleep disorder where you awake in panic without nightmare • Night Terror

  42. Babies are most likely to wake up in this stage • 1 REM

  43. Adults are most likely to wake in this stage • Stage 2 NREM

  44. You are most difficult to awaken in this stage and state • Stage 3 / 4 Hypnagogic

  45. Narcolepsy Sleep attacks while awake

  46. Sleepwalking most likely to occur in this stage • Stage 4

More Related