Understanding Major Depressive Disorder

What distinguishes major depressive disorder from a passing bad mood?

• It is not associated with any symptoms.

• It is a temporary feeling of sadness.

• It is a major cause of distress, disability, and suicide.

• It is a mild form of depression.

What is the current understanding of the biological causes of major depressive disorder?

• There are no functional abnormalities detected.

• The causes are well understood.

• There are no consistent abnormalities in brain tissues.

• There are consistent abnormalities in brain tissues.

Which brain areas are associated with abnormal activity in major depressive disorder?

• Frontal lobe and limbic structures

• Temporal lobe and thalamus

• Parietal lobe and medulla

• Occipital lobe and cerebellum

What role does the hypothalamus play in major depressive disorder?

• It has no role in hormone regulation.

• It is responsible for motor control.

• It controls the release of serotonin.

• It regulates stress hormones and communicates with the frontal lobe and limbic structures.

Which neurotransmitter is primarily associated with the raphe nuclei?

• Dopamine

• Acetylcholine

• Norepinephrine

• Serotonin

What is neuroplasticity?

• The brain's ability to change in response to experience

• A fixed structure of the brain

• The brain's inability to adapt

• A type of neurotransmitter

What is the relationship between neurotransmitter abnormalities and major depressive disorder?

• They only affect physical health.

• They may cause abnormal activity in brain areas like the frontal lobes.

• They are unrelated to brain function.

• They have no effect on the disorder.

What is the significance of the ventral tegmental area in the context of major depressive disorder?

• It controls the release of norepinephrine.

• It is unrelated to the disorder.

• It supplies much of the dopamine to the brain.

• It is responsible for serotonin production.

How might genetic factors contribute to major depressive disorder?

• They have no impact on the disorder.

• They can increase the risk of developing abnormal responses to stress.

• They guarantee the development of the disorder.

• They only affect physical health.

Which of the following is a psychosocial factor linked to major depressive disorder?

• Excessive sleep

• Balanced diet

• Childhood abuse

• High levels of physical activity