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PSY100: week 5 class notes 9/29/16

by: Lorren Roberts

PSY100: week 5 class notes 9/29/16 PSY 100

Marketplace > Central Michigan University > Psychology (PSYC) > PSY 100 > PSY100 week 5 class notes 9 29 16
Lorren Roberts

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Chapter 4 finished
Introduction to Psychology
Mark A Deskovitz
Class Notes
Intro to Psychology, Psychology
25 ?




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This 2 page Class Notes was uploaded by Lorren Roberts on Tuesday October 4, 2016. The Class Notes belongs to PSY 100 at Central Michigan University taught by Mark A Deskovitz in Fall 2016. Since its upload, it has received 9 views. For similar materials see Introduction to Psychology in Psychology (PSYC) at Central Michigan University.


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Date Created: 10/04/16
Psychoactive drugs  Chemical substances that alter consciousness, perception, mood, and behavior  Effects o Addiction­ when a person feels psychologically and physically compelled to take  a drug o Physical dependence­ when a person’s body and brain chemistry have physically  adapted to a drug o Drug tolerance­ when increasing amounts of the drug used are needed to gain the  original, desired effect o Withdrawal symptoms­ unpleasant physical reactions to lack of the drug and an  intense craving for it o Drug rebound effect­ withdrawal symptoms that are opposite of the drugs actions o Drug abuse­ recurrent drug use that results in the disruption of academic, social,  or occupational functioning, or in legal or psychological problems  Depressants­ a class of drugs that depress or inhibit central nervous system activity  (doesn’t actually make you depressed) o Alcohol (most widely consumed and available)  Legal limit .08­ impaired abilities  .30­ high but not unconscious  .40­ ½ people would die at this level  Serious withdrawal  Reduces inhibitions by depressing the brain centers responsible for  judgement and self­control o Inhalants­ chemical substances that are inhaled to produce an alteration in  consciousness  Paint solvents, spray paint, gasoline, and aerosol sprays o Barbiturates­ powerful drugs that reduce anxiety and promote sleep (“downers”)  Prescription sedatives Seconal and Nembutal, and the illegal drug  Quaalude o Tranquilizers­ drugs that relieve anxiety  Xanax, valium, Librium, and Ativan   Opiates (narcotics/opioids)­ a group of addictive drugs that relieve pain and produce  feelings of euphoria o Natural  Opium, morphine, and codeine o Synthetic/semisynthetic  Heroine, methadone, and oxycodone o Prescription painkillers  OxyContin, Vicodin, Percodan, Demerol, and Fentanyl  Stimulants­ drugs that increase brain activity and mental awareness, and arouse behavior o Caffeine­ promotes wakefulness, mental alertness, vigilance, and faster thought  processes by stimulating the release of dopamine in the brains prefrontal cortex  Most widely used drug in the world and found in sources such as coffee,  tea, cola drinks, chocolate, and some over­the­counter medications o Nicotine­ increases mental alertness and reduces fatigue or drowsiness  Found in tobacco products o Amphetamines­ suppress appetite and arouse the central nervous system  (“uppers”)  Benzedrine and Dexedrine o Cocaine­ an illegal stimulant derived from the leaves of the coca plant  Produces intense euphoria, mental awareness, and self­confidence o Methamphetamine­ highly addictive and can cause extensive brain damage and  tissue loss  Psychedelics­ a group of drugs that create profound perceptual distortions, alter mood,  and affect thinking o Mescaline­ drug produced from the peyote cactus o Psilocybin (“shrooms”)­ produced from the psilcybe mushrooms o LSD (“acid”)­ synthetic psychedelic drug  Mimics serotonin in the brain and stimulates the receptor sites in the  somatosensory cortex o Marijuana­ produced from the hemp plant  Designer “club” drugs­ a loose collection of drugs that are popular at dance clubs, parties, and raves o MDMA (ecstasy)­ at low doses acts as a stimulant but at high doses has mild  psychedelic effects 


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