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Understanding Drug Addiction

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Questions and Answers

Which of the following best describes tolerance in relation to drug administration?

The brain's protection from excitotoxicity caused by overstimulation

The resorption of dopamine receptors in the brain

An increase in the effectiveness of a drug that is administered repeatedly

A decrease in the effectiveness of a drug that is administered repeatedly (correct)

What is the main function of the brain's reward system?

To activate dopamine receptors and induce pleasure

To resorb dopamine receptors and decrease sensitivity

To protect the brain from excitotoxicity

To motivate individuals to engage in activities essential for survival (correct)

What is the motivation for early addiction to drugs?

Excitotoxicity and protection from overstimulation

Depleted dopamine sensitivity and decreased pleasure

Withdrawal symptoms and negative reinforcement

Reward and positive reinforcement (correct)

What is positive reinforcement?

A concept of Operant conditioning that presents favorable reinforcer, so that the subject repeats its behavior Signup and view all the answers

What is withdrawal?

The state you go into when the last dose you administered wears off Signup and view all the answers

What is sensitization?

An increase in the effectiveness of a drug that is administered repeatedly Signup and view all the answers

Study Notes

Drug Addiction Concepts

Tolerance: A state in which the body adapts to the presence of a drug, requiring higher doses to achieve the same effect.

Brain's Reward System

Main function: To motivate behaviors that stimulate pleasure and satisfaction, such as eating, sex, and social interactions.

Early Addiction

Motivation: The initial rewarding effects of drugs, such as feelings of pleasure or euphoria, which can lead to repeated use and eventually addiction.

Positive Reinforcement

Definition: A process in which a behavior is followed by a pleasing consequence, increasing the likelihood of the behavior occurring again in the future.

Withdrawal and Sensitization

Withdrawal: A physiological response to the sudden removal of a drug, characterized by unpleasant symptoms, such as anxiety, nausea, and tremors.
Sensitization: An increased response to a drug after repeated use, often resulting in increased cravings and a higher likelihood of addiction.

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Description

Test your knowledge on tolerance, withdrawal, and sensitization in relation to drug use. Learn about the brain's response to repeated drug exposure and how it protects itself. Explore the activation of synapses in the reward system and understand the concept of excitotoxicity. Take the quiz and enhance your understanding of these important concepts in drug addiction.