PSYCH 14 Lecture Notes - Lecture 17: Caffeine, Pharmacodynamics, East Los Angeles College
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*********: maladaptive pattern of behaviors that are related to the continued use of drugs despite creating problems for the person, such as: Can use this term interchangeably with substance abuse and addiction\ Dsm-5 divides substance-related disorders into 2 categories: Consequences of being addicted to a drug (typical concept of abuse) Substance-induced disorders: disorders relating to immediate use (intoxication/ high effects) and discontinuation disorders (withdrawal effects) Has separate descriptions for 9 different classes of drugs, and for each drug, covers use and induced effects. Dsm-4 had separate categories for dependence and abuse (severity levels) but dsm-5 now has a single definition of abuse with continuum for severity. Psychoactive substances: chemicals that alter a person"s mood, level of perception, or brain functioning. Depressants (of the cns): alcohol, hypnotics (sleep aids), sedatives, anxiolytics (benzodiazepines) Respiratory depression (breathing is too slow or shallow to. Cognitive and motor impairments get sufficient oxygen) Stimulants (of the cns): amphetamine, cocaine, nicotine and caffeine.