Original Research J Clin Psychiatry March 2026

Neuropsychiatric Symptom Clusters and Their Association With Brain Structure in Alzheimer Disease

Full Article Read the complete peer-reviewed article in J Clin Psychiatry. Clinical Summary Neuropsychiatric symptoms are nearly ubiquitous in Alzheimer disease and often drive disability, distress, and faster clinical decline more than cognitive symptoms alone. This study helps clinicians think beyond single symptoms by showing that reproducible symptom clusters track with specific brain atrophy patterns and with worsening daily function over time. FAQ What neuropsychiatric symptom clusters did this Alzheimer disease study identify? 8 questions
Key Takeaways In this amnestic MCI/AD cohort, principal components analysis supported a 4-cluster structure after excluding an uninterpretable fifth component, with the final model explaining 62.4% of the variance; the largest cluster was hyperactivity, accounting for 31.4% of the total variance. 6 takeaways Clinical Guide How can clinicians use NPI-Q symptom clusters to monitor functional risk in patients with amnestic MCI or Alzheimer dementia? 6 steps
Physicians Postgraduate Press, Inc. (PPP) makes no warranties about the accuracy or completeness of any information published in The Journal of Clinical Psychiatry or other PPP materials, and disclaims liability for any use or non-use of that information. Clinicians should not rely solely on these materials and should exercise their own professional judgment when making patient care decisions on an individualized basis.

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