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Lecture on Sleep & dreaming, prenatal development, drug and consciouness these are notes for the 2nd midterm on psych 101

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Colin Mac Leod

Psychology Sleeping and Dreaming - October 19 Sigmund Freud - dream analysis : mostly about sexuality and aggression Freudian Dream Analysis -Manifest content: what person consciously remembers from the dream.. but this is distorted - dream time can be much condensed or stretched out - Latent Content: the true meaning of the dream, unconscious drives and wishes only determined from careful analysis Theories of Dreaming have to dream every night. if we don't one night, we will make it up by more dreams on another night. -information processing: to work through the days experiences in memory -organizing a days work -physiological stimulation: to keep the brain activated -activation- synthesis: dreaming are random neural activity that the brain tries to interpret.. nothing real happening, brain makes up a story. interpreting itself -other animals sleep too = sleep and dreaming is deeply biological -dreams can be controlled. e.g. if shown a fighting film vs a peaceful film before you sleep. the activity level of your dream will be influenced. not necessarily dream about the same thing but in the content of it Consciousness & Drugs consciousness: the current awareness of external or internal stimuli that are “ in the mental spotlight” -can be altered. e.g by a cup of coffee in the morning. preconscious: memories that can be called to consciousness fairly easily -things that we know that we arent constantly thinking about. but if we chose to we could. its available to us when we shift our conscious to it when someone brings the topic up unconscious: ideas and memories that cannot be brought to mind easily non-conscious: processes which cannot be brought into consciousness -e.g. your liver activity, structure of how things are run in your mind ... tells us that a lot of our cells are beneath the surface Psychoactive Drugs chemicals that alter perceptions and or mood. depressant: calms neural activity and slow bodily functions---> alcohol (at earliest point is a stimulant then becomes depressant), opiates stimulant: excites neural activity and arouses bodily function ---> caffeine, cocaine hallucinogen: distorts perceptions and or creates sensory images without sensory input ... its going on in the mind. e.g LSD (what is LSD hmph!) Effects of Drugs tolerance: decreasing drug effect with use , requires increasing dosages to obtain the same effect. -over time mind and body gets used to the drug -some drug have reverse tolerance, the more experienced you are with the drug, the less u need to take---eg marijuana since you are aware of the drug, u know how to get high easily addiction: craving for a drug or substance withdrawal: the discomfort and distress that follow ceasing use of an addictive drug -when u take sleeping pills and after a while u g
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