PSY 1101 Lecture Notes - Lecture 7: Synesthesia, Nicotine, Active Ingredient

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PSY 1101 Full Course Notes
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Altered states of consciousness: the effects of psychoactive drugs. Change perception of external (and internal) environment (cid:498)the doors of perception(cid:499) Types of psychoactive drugs: depressants ((cid:498)downers(cid:499)). Inhibit neural function: stimulants (cid:523)(cid:498)uppers(cid:499)(cid:524) excite neural function, hallucinogens/ distorts perception, evoked sensory images. Tolerance: with repeated use, tolerance develops, a larger dose is required to produce the same initial effect, physical dependence (physical addiction) How is this defined: upon withdrawal, physical pain and cravings, psychological dependence (psy. False claims about addiction: all psychoactive drugs lead to addiction, for some there is little or no physical addiction ( e. g. Lsd: for even highly addictive drugs (alcohol, cocaine heroin) perhaps on. 10-15% will show addiction: also those who use psychoactive drugs medically, to overcome addiction one needs medical treatment. Always depresses neural activity regardless of dosage. Reduced sympathetic nervous system activity; slow thought processes. Depresses frontal lobe control (perhaps over limbic system)

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