Parkinson's Parkinson's Mental Health and Cognitive Changes 2 — Questions and Answers
Question 1: What is the estimated prevalence of depression among Parkinson's disease patients?
- 5-10%
- 15-20%
- 35-50% (Correct answer)
- 70-80%
Correct answer: 35-50%
Depression affects approximately 35-50% of PD patients, making it one of the most common and impactful non-motor symptoms.
Question 2: Depression in Parkinson's disease is best understood as:
- A purely psychological reaction to receiving a serious diagnosis
- A non-motor symptom driven in part by neurochemical changes in monoaminergic pathways (Correct answer)
- A symptom that only emerges after motor disability becomes severe
- Unrelated to dopamine or serotonin systems
Correct answer: A non-motor symptom driven in part by neurochemical changes in monoaminergic pathways
PD-related depression is a neurobiological symptom caused by degeneration of serotonergic, dopaminergic, and noradrenergic pathways, not merely a psychological response.
Question 3: Which antidepressant class is generally considered first-line for treating depression in Parkinson's disease?
- Tricyclic antidepressants (TCAs)
- Selective serotonin reuptake inhibitors (SSRIs) (Correct answer)
- Irreversible monoamine oxidase inhibitors (MAOIs)
- Typical antipsychotics
Correct answer: Selective serotonin reuptake inhibitors (SSRIs)
SSRIs are preferred in PD because they are effective for depression and lack the significant anticholinergic side effects of older antidepressants.
Question 4: What is the most common anxiety disorder seen in Parkinson's disease?
- Obsessive-compulsive disorder (OCD)
- Post-traumatic stress disorder (PTSD)
- Generalized anxiety disorder (GAD) (Correct answer)
- Specific phobia
Correct answer: Generalized anxiety disorder (GAD)
Generalized anxiety disorder is the most prevalent anxiety condition in PD, characterized by persistent, difficult-to-control worry across multiple areas of life.
Question 5: Anxiety in Parkinson's disease is most strongly correlated with which motor phenomenon?
- Resting tremor severity
- Motor fluctuations and off periods (Correct answer)
- Postural instability
- Freezing of gait during on states
Correct answer: Motor fluctuations and off periods
Anxiety episodes frequently coincide with dopaminergic off periods, suggesting a direct neurochemical basis rather than a purely situational cause.
Question 6: Which key challenge makes diagnosing depression in Parkinson's disease more difficult than in the general population?
- PD patients are unable to verbally report emotional symptoms
- Many depression symptoms such as slowed movement, flat affect, and fatigue overlap with PD motor features (Correct answer)
- Antidepressants are uniformly ineffective in PD
- Depression in PD only manifests as sleep disturbance
Correct answer: Many depression symptoms such as slowed movement, flat affect, and fatigue overlap with PD motor features
Masked facies, psychomotor slowing, fatigue, and sleep problems are shared by both PD and depression, making it difficult to attribute them to either condition alone.
Question 7: Which non-pharmacological therapy has the strongest evidence for reducing depression and anxiety in Parkinson's disease?
- Electroconvulsive therapy (ECT)
- Cognitive behavioral therapy (CBT) (Correct answer)
- Hypnotherapy
- Guided imagery
Correct answer: Cognitive behavioral therapy (CBT)
CBT has the most robust evidence base among psychological treatments for depression and anxiety in PD, with multiple randomized trials supporting its effectiveness.
Parkinson's Parkinson's Mental Health and Cognitive Changes 2
What is the estimated prevalence of depression among Parkinson's disease patients?