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Questions and Answers
Which of the following substances is NOT among the top three most used drugs in the USA?
Which of the following substances is NOT among the top three most used drugs in the USA?
- Tobacco
- Alcohol
- Marijuana
- Caffeine (correct)
What is the primary role of dopamine in the brain?
What is the primary role of dopamine in the brain?
- To regulate blood pressure
- To facilitate muscle growth
- To transmit feelings of pleasure (correct)
- To aid in digestion
How is dopamine often described regarding its effect on thoughts and emotions?
How is dopamine often described regarding its effect on thoughts and emotions?
- As a depressant
- As a sleep regulator
- As a highlighter for the brain (correct)
- As a pain reliever
Which statement about dopamine is least accurate?
Which statement about dopamine is least accurate?
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Which of the following is NOT a function associated with dopamine?
Which of the following is NOT a function associated with dopamine?
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Study Notes
Most Used Drugs in the USA
- Tobacco, alcohol, and marijuana are the top three most consumed substances in the United States.
- Their widespread use has significant public health implications and societal impacts.
Dopamine and Its Role
- Dopamine is a neurotransmitter that plays a crucial role in the brain's reward system.
- It is often referred to as the "happiness chemical," as it contributes to feelings of pleasure and satisfaction.
- Dopamine influences physical movement, cognitive function, and emotional responses.
- Acts as a "highlighter" for the brain, enhancing the recognition of rewards and reinforcing behaviors that lead to positive feelings.
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