and Verified Answers
What role does the amygdala play in anxiety? - The amygdala processes emotions,
especially fear. Overactivity can lead to anxiety disorders by overreacting to non-threatening
situations.
What neurotransmitters are associated with depression? - Low levels of serotonin (mood,
sleep, appetite), norepinephrine (alertness, arousal), and dopamine (reward, motivation,
pleasure).
What is the primary mechanism of action of antipsychotic medications? - Dopamine
antagonism, particularly in the mesolimbic pathway, reduces symptoms like hallucinations and
delusions.
What is a common mistake leading to an unsuccessful antidepressant trial? - Insufficient
time or too low a dose for too short a period.
What are the diagnostic criteria for Major Depressive Disorder (MDD)? - At least five
symptoms (depressed mood, anhedonia, appetite changes, sleep disturbances, fatigue, guilt,
concentration issues, suicidal thoughts) for at least two weeks.
What is dysthymia (Persistent Depressive Disorder)? - Chronic depression lasting at least
two years (one in children) with at least two symptoms like low energy, low self-esteem, or
appetite changes.
What is the mechanism of action of SSRIs? - SSRIs selectively inhibit serotonin reuptake,
increasing serotonin levels in the brain.
What are the symptoms of antidepressant discontinuation syndrome? - Flu-like
symptoms, dizziness, insomnia, brain zaps, irritability, nausea, and sensory disturbances.
Which SSRI is FDA-approved for bulimia treatment? - Fluoxetine (Prozac).
What are possible interventions for SSRI-induced sexual dysfunction? - Lowering the
dose, switching to bupropion, or adding medications like sildenafil.
What are the key features of Generalized Anxiety Disorder (GAD)? - Excessive worry for at
least six months with symptoms like restlessness, fatigue, difficulty concentrating, irritability,
muscle tension, and sleep disturbances.