PSYC 107 1nd Edition Lecture 11 Outline of Last Lecture I Purpose of Dreaming II Wish Fulfillment III Hypnosis Outline of Current Lecture I Psychoactive Drugs II Three Main Class III Near Death Experiences IV Test Reminders Current Lecture I II Psychoactive drugs o Chemicals that change perceptions and mood o These drugs work at the synapses by stimulating inhibiting or mimicking the activity of neurotransmitters o Misconceptions Addictive drugs quickly corrupt most occasional users do not become addicted Addiction cannot be overcome voluntarily people can stop on their own they do not need help Addiction is no different than repetitive pleasure seeking behaviors some behaviors can become compulsive and dysfunctional but beware of addictionas disease excuse Three main classes Depressants slow down the nervous system Stimulates speeds up nervous system Hallucinogens distorts perceptions and causes people to see things that are not really there o Neurotransmitter natural chemical Dopamine primary NT that communicates with activities that are rewarding food or sex are examples influences movement learning attention and emotion Serotonin affects mood hunger sleep and arousal Norepinephrine helps control arousal GABA inhibitory NT o Psychoactive drugs 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 III IV Stimulants interfere with reuptake of dopamine allows dopamine to stay in the synapses Nicotine triggers release of epinepherine and norepinephrine calms anxiety diminishes appetite o Odds of getting hooked after trying once marijuana alcohol cocaine heroin tobacco o Depressants alcohol affects motor skills judgment and memory Alcohol is a depressant even in small amounts Slow sympathetic nervous system Suppresses REM sleep Reduces self awareness and self control 50 rapist drink before offense Relationship between risky sex and alcohol use TEST QUESTION Alcohol is a depressant in both small and large amounts BAC Blood alcohol content o Do not need to know opiates and slide before that o Cocaine ecstasy amphetamines methamphetamines not on test o Stimulants Caffeine and nicotine increase heart and breathing rates and other automatic functions Eliminating smoking would increase life expectancy more than any other preventative measure Nicotine Takes away the unpleasant cravings by triggering epinephrine norepinephrine dopamine and endorphrins Nicotine itself is rewarding stimulates the release of dopamine o Will not talk about hallucinogens on the test Near Death Experiences o People who are clinically dead an report moving through a dark tunnel with a light at the end of the tunnel met people who had died previously o Under influences of hallucinogens Other report bright lights at the center of their field of vision o NDE like experiences can be triggered by stimulating temporal lobe lack of oxygen to the brain and psychedelic drugs they are really just having a dream o Link between NDE and sleep paralysis because of a disconnection between arousal system Test Reminder o ONLY ALCOHOL CAFFEINE NICOTINE FOR THE TEST
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