Questions: Question 6 (1 point) Drugs blocking which of the following neurotransmitters have been shown to be an effective treatment of psychotic disorders, like schizophrenia? 1) GABA 2) serotonin 3) dopamine 4) epinephrine

Question 6 (1 point) Drugs blocking which of the following neurotransmitters have been shown to be an effective treatment of psychotic disorders, like schizophrenia? 1) GABA 2) serotonin 3) dopamine 4) epinephrine
Transcript text: Question 6 (1 point) Drugs blocking which of the following neurotransmitters have been shown to be an effective treatment of psychotic disorders, like schizophrenia? 1) GABA 2) serotonin 3) dopamine 4) epinephrine
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Solution

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The answer is the third one (3): dopamine.

Explanation for each option:

  1. GABA: Gamma-aminobutyric acid (GABA) is primarily an inhibitory neurotransmitter in the brain. While it plays a role in anxiety and mood disorders, it is not the primary target for treating psychotic disorders like schizophrenia.

  2. Serotonin: Serotonin is involved in mood regulation and is a target for antidepressants and some antipsychotics. However, blocking serotonin alone is not the primary mechanism for treating psychotic disorders.

  3. Dopamine: Dopamine is a key neurotransmitter involved in the pathophysiology of schizophrenia. Many antipsychotic drugs work by blocking dopamine receptors, particularly the D2 receptor, which helps alleviate symptoms of psychosis.

  4. Epinephrine: Epinephrine, also known as adrenaline, is more involved in the body's fight-or-flight response and is not a primary target for treating psychotic disorders.

In summary, drugs that block dopamine receptors have been shown to be an effective treatment for psychotic disorders like schizophrenia.

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