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CH. 11 lecuture notes

by: Tanner Harty

CH. 11 lecuture notes PSYC 3303

Tanner Harty

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About this Document

These lecture notes go over the important concepts of CH. 11 over Caffeine.
Drugs and Behavior
Perry Fuchs
Class Notes
Drugs&Behavior, ch.11, Caffeine
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This 2 page Class Notes was uploaded by Tanner Harty on Saturday October 1, 2016. The Class Notes belongs to PSYC 3303 at University of Texas at Arlington taught by Perry Fuchs in Fall 2016. Since its upload, it has received 144 views. For similar materials see Drugs and Behavior in Psychology (PSYC) at University of Texas at Arlington.


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Date Created: 10/01/16
CH. 11: Caffeine Characteristics:  Belongs to a family of compounds called Xanthines   Others are chocolate (Theobromine) and tea (Theophylline)  It’s found in 3 natural sources: ­ Coffee (the longer the bean is roasted the darker it becomes and the stronger the  caffeine flavor) ­ Tea (can have therapeutic properties—green tea for example!) ­ Chocolate ­ Even some soft drinks! ­ Caffeine pills ­ Over the counter drugs (NoDoz; inhalant caffeine drugs) ­ *Over 500mg of caffeine are consumed on average per individual  Drug properties of Caffeine   Absorption is rapid (30 min)   half­life is about 3 hours (how long the effect will work)  Little tolerance  Physical & Psychological dependence present with use of this drug  Psychological dependence is lower than that of tobacco use  Mechanism of action: blocks brain receptors dealing with  Adenosine (brain chemical)  Caffeine blocks this chemical (put on the brakes) so the person taking caffeine becomes  more excited   Physiological effects:  ­low doses: increased activity of the cortex (impact on cognitive function) ­high doses: effect on autonomic centers (effect on brain stem functioning) Behavioral effects:  Increased attention and vigilance (adrenaline pumping)  Does not reverse alcohol intoxication (*don’t take with alcohol!!!)  Caffeine is not wise to take when someone has major anxiety issues Health Risks with Caffeine:  Inconclusive research on this stimulant  Acute toxicity (caffeinism – a massive amount of caffeine intake can cause an over­ stimulating behavioral pattern (talkative, hyperactive reflexes, etc…))!!!  Lethal dose range:  80­100 cups of coffee


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