PSY 100 1st Edition Lecture 10Outline of Last Lecture I. Perceptual Organization and InterpretationII. Perceptual ConstancyOutline of Current Lecture I. Consciousness: Sleep and DrugsII. SleepIII. DreamsIV. DrugsCurrent LectureI. Sleep and DrugsA. Consciousness- our awareness of ourselves and our environmentB. The two track mind- Conscious sequential processing and the Unconscious parallel processingC. Selective Attention: Focusing of awareness, deliberate focusing, we have a finite amount of attention.D. Inattentional Blindness: Fail to see changing objects. II. SleepA. Dream in REM sleep, if you don’t wake up during REM sleep, you wont remember the dream. B. Sleep disorder named “Exploding Head Disorder”- Where when close to sleep they experience loud sound going off right before going to sleep and can be very distressful.C. A healthy 25 year old male has an erection during half of his nights sleep, females experience this too. Experience sexual arousal during sleep due to because body is physiologically aroused but physically paralyzed. This decreases as we get older. D. Longest record without sleep is 18 days, 21 hours, and 41 minutes, set during a rocking chair marathon. This is most likely impossible, individual must have fell into micro-sleep, when sleep deprivation sets in, that the body shuts down very quickly, and physically looks like he is awake.E. REM Rebound- when sleep deprived you acquire a sleep debt and when sleeping the next time you spend more time in REM sleep.F. SLEEP- A natural periodic loss of consciousness. You’re not dead to the world, you are not in a loss of awareness, just reduced awareness.These 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.G. Sleep stages- Awake relaxed, Alpha…NREM-1 (Falling asleep), Theta Waves….NREM-2,(Asleep, but wakeable) -Sleep Spindles. NREM-3 =Slow brain waves, super deep sleep… REM SLEEP- Awareness is up, resembles NREM-1 in brain activity, physiological arousal, physical paralysis, dreaming.Total of 90 minute sleep cycle. Most amount of REM sleep in the early morning hours. Spendroughly 25% of sleep in REM a night.H. Circadian Rhythm- 24-hour biological internal clock. Sleep triggers- increases in melatonin, decrease of body temperature. When light starts to fade, sun sets, the endocrine system produces melatonin. I. Sleep deprivation can be comparable to torture.. effects of sleep deprivation- weaker memories, less attention during the day, need to sleep to make memories via hippocampus. Alcohol interfers with entering into REM Sleep, have weaker immune system, and emotional dis-regulation (depressed, moody), weighing more if sleep deprived. III. DreamsA. Dreams- the sequences of emotions and cognitions while sleeping, and the delusional acceptance of the content. Number one theme showing up in dreams- content from the day.B. Why do we dream? – We don’t know… “WHY” Dream theories- To file away memories, random neural activity while sleeping, dream to satisfy our unconscious desires or conflicts. C. Freud- “The Interpretation of Dreams”- Dreams are symbolic of what “really” is going on in your life. Not based on science. D. Lucid Dreaming- Awareness that your dreaming, and Control that your dreaming. Scientific evidence supports that you can be aware that you’re dreaming. People can signal that they are aware that they are dreaming. There is no way to scientifically test that you can “control”your own dreams. Self-report is too bias to rely on. IV. DrugsA. Psychoactive drug- Chemical substances that alter perceptions and moods. Coffee is the number one psychoactive substance used in the worldB. Depressants- alcohol, tranquilizers, barbiturates, reduce neural activity and slow down bodily function. C. Hallucinogens- Distort perceptions (Marijuana) D. Stimulants- Increase neural activity, and speed up body functions. Super addicting.E. Opiates or Narcotics- painkillers, vicodin, morphine, herion, opium. Induce feelings of euphoria. F. Ecstacy- distorts perceptions, hallucinogens, and stimulantG. How do drugs work? Works at synapse of neurons, effecting neurotransmitters, block reuptakeAddiction- There is no diagnosis of being addicted, its “Drug dependence”Drug USE- occasional use with no problemsDrug ABUSE- Drug use interfers with life Drug dependence- symptoms of tolerance, and withdrawlWithdrawl from depressants can be deadly- ALCOHOL- Withdrawl for other drugs is usually just uncomfortable and