Sanjeev Kumar, MD, for the ONDRI Investigators

University of Toronto, Toronto, Ontario, Canada; Centre for Addiction and Mental Health, Toronto, Ontario, Canada

  • 3Articles
  • 4.6KReads
  • 2017–2026Active
  • 35Collaborators
  • 66Citations

About

Sanjeev Kumar, MD, is affiliated with the University of Toronto and the Centre for Addiction and Mental Health in Toronto, Ontario, Canada. Kumar has published research from 2017 to 2026 focusing on cognition, Alzheimer disease, geriatric psychiatry, addiction, and neurology. The work includes studies on neuropsychiatric symptom clusters related to brain structure in Alzheimer disease, the impact of alcohol use on cognition in neurocognitive disorders, and anticholinergic burden effects on cognition in older patients with schizophrenia. Frequent collaborators include David F. Tang-Wai, Tarek K. Rajji, and Angela Troyer.

Publications

JCP
Neuropsychiatric Symptom Clusters and Brain Structure in Alzheimer’s Disease
Original Research

Neuropsychiatric Symptom Clusters and Brain Structure in Alzheimer’s Disease

March 16, 2026

Neuropsychiatric symptoms in Alzheimer’s disease separate into hyperactivity, psychosis, neurovegetative, and affective clusters, supporting a cluster-based paradigm linking behavioral symptoms with brain structure and functional decline.
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JCP
Effects of Alcohol Use on Cognition in Individuals With Neurocognitive Disorders
Original Research

Effects of Alcohol Use on Cognition in Individuals With Neurocognitive Disorders

August 6, 2025

In a memory clinic cohort of patients with neurocognitive disorders, alcohol related cognitive impairment resulted in specific deficits involving cognitive control during delayed recall task.
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JCP
Original Research

Anticholinergic Burden and Cognition in Schizophrenia

November 28, 2017

Due to the likelihood of their taking multiple medications, older persons with schizophrenia often have a high anticholinergic burden. Read this article to learn the extent to which high...
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