Psyc 222 1st Edition Lecture 18Outline of Last Lecture • stimulants• cocaine history• early legal controls on cocaine • forms of cocaine • contemporary legal controlsOutline of Current Lecture i. Abuse and Dependenceii. Toxicity potentialCurrent Lecturei. 1) Tolerance: tolerance develops after high levels of regular use. May not develop uniformly to all effects. 2) Withdrawl: DSM-5: No listings of cannabis withdrawal. Begins 1 day after the last dose. Lasts 4 to 12 days. Symptoms include anxiety, irritability, disrupted sleep, and decreased food intake. ii. 1) Acute Physiological effects: increased heart rates. Risky for someone with preexisitingcardiovascular disease. 2) Chronic lung exposure: most recent research indicates that marijuana is no associated with respiratory symptoms or lung disease. Marijuana smoke contains carcinogens foundin tobacco smoke. 3) Reproductive effects: reduced testosterone levels in men. Diminished sperm counts and abnormal sperm structure in men. Marijuana used by pregnantn women does not appear to be associated with negative birth outcomes. 4) Immune system effects: Some evidence suggests that marijuana use reduces data immunity to infection. Mortality do not show a relationship between marijuana use and overrall death rate. 5) Anxiety: characterized by fear of loss of control. Some people seek medical treatments. The best treatment is likely "talking down". 6) Amotivational syndrome: laboratory data do not support the hypothesis that frequent smokers exhibit diminished motivation. 7) Driving ability: lab studies says 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.significant impairment in infrequent users. Epidemiological studies says little evidence for impairment. 8) Marijuana Madness: some studies found correlation between marijuana use and psychotic symptoms. Causation: Psychotic symptoms prior to using marijuana. Influence of other drug use on the psychotic symptoms. There is evidence that marijuana can increase the likelihood of psychotic episodes. In individuals with a history of psychotic
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