drug module outline-John

drug module outline-John - John Robinson Psychoactive Drugs...

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Unformatted text preview: John Robinson Psychoactive Drugs  Chemicals that change perceptions and moods Includes: coffee, cigarettes, diet pills, alcohol, Tylenol, , and Adderall Dependence and Addiction  Addiction is compulsive drug craving and use Physical Dependence: a physical need for a drug Psychological dependence: a psychological need to use a drug, such as to relieve negative emotions o Withdrawal: The discomfort and distress that follows the discontinuing use of addicting drugs o Tolerance: the user experience neuroadaptation (the brain adapts its chemistry to offset the drug effect). Misconceptions about Addictions  Addictive drugs quickly corrupt 10% of people have a hard time using a psychoactive drug in moderation or stopping all together o Addictions cannot be overcome voluntarily: The difference between the recovery rates of treated and untreated groups differ less than 1 % o We can extend the concept of addiction to cover not just drug dependencies but a whole spectrum of repetitive, pleasure seeking behaviors Psychoactive drugs: Depressants  Depressants are drugs that calm neural activity and slow body functions o Three types of depressants: alcohol, barbiturates(tranquilizers), and opiates o The effect of the drug depends on altering the brain chemistry and one’s expectations Alcohol  The urges that one feels if sober are the ones you will more likely act upon if intoxicated o Effects Small doses: enliven a drinker by slowing sympathetic nervous system Large doses: Reactions slow, speech slurs, skilled performance deteriorates Disrupts the processing of recent experiences into long-term memories (blackouts), this happens because alcohol suppresses REM sleep which helps fix the day’s experiences into permanent memories Alcohol cont. Alcohol cont....
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This note was uploaded on 09/15/2008 for the course PSYCH 111 taught by Professor Schreier during the Spring '08 term at University of Michigan.

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drug module outline-John - John Robinson Psychoactive Drugs...

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