PSYC 1010 Chapter Notes - Chapter 9: Sympathetic Nervous System, Sleep Deprivation, Barbiturate
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PSYC 1010 Full Course Notes
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What are substance use disorder: psychoactive drugs: chemical that changes perceptions and moods, drugs that are used in moderation and without disrupting out lives are okay. Sometimes, drugs cross the line between moderation and substance use disorder. Substance use disorder: substance craving and used despite like disruption and/or physical risk. When is drug use a disorder: when drug use continues despite significant life disruption, brain change may persist after quitting use of drug. Severity of drug use can vary from mild, moderate, to severe. Types of psychoactive drugs: 3 major, depressants, stimulants, hallucinogens. Slowed neural processing: alcohol slows sympathetic nervous system activities. Barbiturates (tranquilizers: also depress nervous system activity. Sometimes prescribe to reduce anxiety or induce sleep. In larger dose, can impair memory and judgement. If combined with alcohol, the total depressive effects on body can be lethal. Opiates: opium and its derivatives also depress neural functions.
