BIOLOGICAL BASES OF BEHAVIOR
BIOLOGY OF CONSCIOUSNESS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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psychoactive drug
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withdrawal symptom
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example of psychological dependence
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example of physical dependence
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highly addictive substance
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Detailed explanation-1: -Caffeine, the most widely used psychoactive compound, is an adenosine receptor antagonist. It promotes wakefulness by blocking adenosine A2A receptors (A2ARs) in the brain, but the specific neurons on which caffeine acts to produce arousal have not been identified.
Detailed explanation-2: -Short term effects Because caffeine is a stimulant, it is common to experience: increased alertness. increased blood pressure. increased breathing rate.
Detailed explanation-3: -The accumulation of adenosine in the body is related to the quantity of caffeine consumed during the day. By drinking beverages with high levels of caffeine, the body builds up an excessive amount of adenosine.
Detailed explanation-4: -Caffeine in the Brain Due to its similar structure, caffeine binds to the adenosine receptors. Caffeine therefore, not only blocks adenosine’s ability to slow nerve activity, but it increases nerve activity, leaving us stimulated, more alert, energetic, and occasionally with coffee jitters.