PSYCH 101 1nd Edition Lecture 10 Outline of Last Lecture I. Perceptual OrganizationOutline of Current Lecture II. Sleep and DreamsCurrent Lecture1. Consciousness is- the awareness of the sensations, thoughts, and feelings being experienced at a given moment2. What are the characteristics of the Stages of Sleep?a. Stage 1 (NREM) - Transition between wakefulness and sleep. Rapid, low amplitude brain wavesb. Stage 2 (NREM) – Slower, more regular wave pattern and momentary interruptions (sleep spindles)c. Stage 3 (NREM) – Slow brain waves, with greater peaks and valleysd. Stage 4 (Now considered to be part of Stage 3, lecture) (NREM)- deepest sleep, least responsive to outside stimulie. REM periods- heart rate increases and is irregular, blood pressure rises, and breathing rate increasesi. REM rebound/recovery- When woken up mid-REM sleep, they spend more time in REM sleep the next night.3. How do alcohol and caffeine affect sleep?a. Less restful, feel tired the next day4. Functions of sleepa. Conserve energy5. How much sleep do you need? What if you don’t get enough sleep?a. Varies between men and women, usually about 8-9 hours. b. Irritable, weary, slower brain function, less creative6. Theories about dreaminga. Wish fulfillment- Theory by Sigmund Freud; dreams represent unconscious wishes that the dreamer desires to see fulfilledb. Survival- Information relevant to daily survival is reconsidered and reprocessedc. Activation- synthesis- random activation of various memories that are tied together in a logical story lineThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.7. Sleep disturbancesa. Insomnia- difficulty sleeping and staying asleepb. SIDS- Sudden Infant Death Syndrome; mysterious killer of healthy infantsc. Night Terrors- Sudden awakenings from non-REM sleep followed by feard. Narcolepsy- uncontrollable sleeping for short periods at any time of daye. Sleepwalking- Vague consciousness of environment8. Circadian rhythm- Biological processes that occur regularly on approx. a 24 hour