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Ted Petit (310)
Lecture 8

Lecture 8 - Psychopharmacology of drug action, depressants, opiates, hallucinogens

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Ted Petit

Lecture 8 Chapter 11 and 16 (Attention and Consciousness and Recovery and Function) Psychopharmacology of drug action, depressants, opiates, and hallucinogens Alcoholics take up most of the psych ward in hospitals Depressants: referred to as sedative hypnotics Valium and barbiturates Causes cortex to go into more relaxed states 3 major categories: 1. Barbiturates: working through GABA GABA is the primary inhibitory amino acid transmitter they bind to GABA receptors and lower [transmission] most depressants are synergistic of each other (work in very similar mechanisms, adding to each other or cancelling withdrawal effects of each other) never take someone right off of depressant because brain can go into a hyper- excitable state and can be fatal used and prescribed normally for sleep induction typically theyre used in elderly individuals because as you go through life span maturation circadian rhythms are troubled and they have trouble sleeping through the night and its to help them to sleep while they do induce sleep, reduce the time in REM sleep behavioural consequences of that WITHDRAWAL?: always a chance of death by seizure if they have been on high dose of it for a while Alcohol will stop the withdrawal symptoms of barbiturates!! 2. Non-barbiturates 3. Alcohol
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