PSYC 107 1st Edition Lecture #13 – Dreaming and SleepingOutline of Last Lecture I. Backwards Music on Record playersII. Attention1. Voluntary – purposeful2. Involuntary – stimulus driven. III. Consciousnessa. Subjective experience of what the world is like. Ones own mental processes, thoughts, feelings and perception. i. Level1. How aware are you?ii. State1. Nature of subjective experience. b. Unaware processingc. States of Consciousnessi. All of our respective states are at different levelsd. Circadian Rhythmsi. Regulation of biological cycles into regular patterns. ii. About over the course of a day, especially the sleep and wake cycleOutline of Current LectureI. Sleepa. Stage 0 – relaxed or awakeb. Stage 1- 3 – quiet sleep, non rem, slow wave.c. Rem – rapid eye movement, crazy, whacky dreams. II. AwakeIII. Why do we sleep?a. Evolution, Recuperation, Memory, Conservation of Energy, Growth IV. Sleep DeprivationV. Sleep Disordersa. Insomnia b. Sleep Apnea c. Narcolepsy VI. Dreaming a. Everyone dreams Lecture 13 NotesVII. Sleepa. Stage 0 – relaxed or awakeb. Stage 1- 3 – quiet sleep, non rem, slow wave.c. Rem – rapid eye movement, crazy, whacky dreams. VIII. Awakea. Beta wavesi. Theta Wavesii. Sleep Spindlesiii. Slow Wave/Delta Wavesiv. REM – crazy stuff in brain – crazy dreams. b. Deep sleep – low BP, low heartbeat, slow breathing, calm, hard to wake up, muscle tone near paralysisc. Early in the night is the deepest sleep, later is lighter REM sleep, less clear, 4-6 cycles assuming a full nights sleep of 8-10 hours. d. Newborns get 16 hours of sleep – half of which is REM. i. We consistently get less REM sleep as we age. IX. Why do we sleep?a. Evolution – safer to sleep in dark caves at night away from predators. b. Recuperation – bodies tend to fix selves when we are sleeping. c. Memory- brain consolidates days events and fixes them in the brain. d. Conservation of Energy – lot of work to stay awake. e. Growth – lot of the growth hormone is active at night. X. Sleep Deprivationa. Very dangerous. b. Americans are sleep deprived about 2-3 hours per night. c. We really need 8-9, most get 6-7. i. Very dangerous1. 20% of auto accidents are due to driving a. BAC of .05 – legally drunk if sleep deprived. 2. Obesity3. Hypertension and memory impairment4. Live longer with more sleep. XI. Sleep Disordersa. Insomnia – inability to stay or fall asleep for desired time. b. Sleep Apnea – Pauses in breathing when sleeping, up to 10 seconds. People are woken up by the lack of air, sounds a little different from snoring, Extremely dangerous – heart attacks and stroke linked to it. c. Narcolepsy – sleep process turns on at random times, higher in stressful situations. People with it often fall asleep when walking, hardlifestyle. XII. Dreaming a. Everyone dreams b. REM Dreams – they are the crazy bizarre dreams that we have. Definesemotion, we uncritically accept illogical things during these dreams. c. Appears that different parts of the brain are active during different stages of
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