Faculty profile

Philip Gerretsen

ResearcherResearch Imaging CenterUniversity of Toronto

This profile is built from public research funding records (CIHR, NSERC and SSHRC) and PubMed. We have not imported them from a University of Toronto directory, so their courses and email address may be missing. Find their university profile.

Philip Gerretsen

Researcher

Research Imaging Center

Health Sciences

University of Toronto

Toronto, Ontario, Canada

Supervision signals

Has led research grants, which requires an independent research appointment. Ask their department whether they supervise graduate students.
76 publications in the last five years, latest in 2026.
Senior (last) author on 17 recent papers, a sign of leading a research group.
Principal investigator on 3 research grants (3 CIHR), most recently in 2021.
Supervised 2 trainees who won CIHR awards, most recently in 2023.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

187

Publications

317

Citations

h-index

Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

Profiles and links

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Signals and details

Research

Schizophrenia Institute Of Neurosciences, Mental Health And Addiction Post Covid-19 Condition Subtopic 8: Understand Underlying Causes And Biological..M2 Repector Positron Emission Tomography Psychosis

Latest papers

Effects of Violence Trajectories on Treatment Outcomes in Schizophrenia Spectrum Disorders.
The Journal of nervous and mental disease · 2026
Evaluating the effect of antidepressants for persistent postural-perceptual dizziness: A systematic review.
Journal of vestibular research : equilibrium & orientation · 2026 · senior author
Antipsychotic Polypharmacy and Epigenetic Age Acceleration in Schizophrenia.
Pharmacopsychiatry · 2026

All 187 publications

Latest funding

Metformin for treatment-resistant bipolar depression (TRBD) with co-morbid insulin resistance (IR): A double-blind randomized control trial
CIHR · 2025 · Co-investigator
$1,510,875
The effect of non-invasive brain stimulation on treatment adherence in first-episode schizophrenia
CIHR · 2023 · Supervisor
$105,000
Long COVID-19 on the human brain
CIHR · 2021 · Principal investigator
$932,475

All 7 grants and awards

From the 150 most recent of 187 publications.

Effects of Violence Trajectories on Treatment Outcomes in Schizophrenia Spectrum Disorders.

Nader G, Ducharme M, Gerretsen P, Fischer C, Graff A, De Luca V, Simpson AIF

The Journal of nervous and mental disease2026

DOI: 10.1097/nmd.0000000000001862 PMID: 41457337

Evaluating the effect of antidepressants for persistent postural-perceptual dizziness: A systematic review.

Bukovsky D, Song J, Shewchuk H, Carmona-Torres E, Crawford E, Dillon WA, Graff-Guerrero A, Kyte S, Rutka J, Sulway S, Tyndel F, Ueno F, Ure R, Gerretsen P

Journal of vestibular research : equilibrium & orientation2026Senior author

DOI: 10.1177/09574271261468395 PMID: 42678338

Antipsychotic Polypharmacy and Epigenetic Age Acceleration in Schizophrenia.

Nader G, Yung A, Liang Y, Ducharme M, Fischer C, Gerretsen P, Graff A, De Luca V

Pharmacopsychiatry2026

DOI: 10.1055/a-2668-0722 PMID: 41183542

Lymphocyte subpopulations and EEG asymmetry.

Ducharme M, Zomorrodi R, Nader G, Fischer C, Gerretsen P, Graff A, Blumberger D, De Luca V

Journal of neural transmission (Vienna, Austria : 1996)2026

DOI: 10.1007/s00702-025-03098-5 PMID: 41739220

Machine Learning-Based Discrimination of Treatment-Resistant Schizophrenia Using Structural Brain Imaging: A Multi-Site Proof-of-Concept Study.

Torres-Carmona E, Graff-Guerrero M, Nakajima S, Iwata Y, Ueno F, Koizumi T, Honda S, Tsugawa S, Homma S, Ogyu K, Tarumi R, Song J, Deluca V, Remington G, Gerretsen P, Graff-Guerrero A

Biological psychiatry2026

DOI: 10.1016/j.biopsych.2026.08.009 PMID: 42632582

Virtual Reality for the Treatment of Auditory Hallucinations in Schizophrenia Spectrum Disorders: a Systematic Review and Meta-Analysis.

Kyte S, Bukovsky D, Song J, Shewchuk H, Ueno F, Carmona-Torres E, Foussias G, Agarwal SM, Strafella A, Remington G, Graff-Guerrero A, Gerretsen P

Schizophrenia bulletin2026Senior author

DOI: 10.1093/schbul/sbag052 PMID: 42084440

The Immediate and Sustained Effects of Multi-Session Biparietal Transcranial Direct Current Stimulation on Insight in Schizophrenia.

Song J, Kim J, Carmona-Torres E, Kambari Y, Ueno F, Koizumi T, Iwata Y, Amaev A, De Luca V, Blumberger DM, Remington G, Pollock B, Graff-Guerrero A, Gerretsen P

Schizophrenia bulletin2026Senior author

DOI: 10.1093/schbul/sbag022 PMID: 42032975

Neural correlates of illness awareness in obesity: an exploratory pilot fMRI study.

Song J, Kim J, Bukovsky D, Volpe G, Morra M, Kambari Y, Carmona-Torres E, Ueno F, Chow C, Kyte S, Agarwal SM, Hahn M, Dash S, Sockalingam S, Urbach D, De Luca V, Pollock B, Graff-Guerrero A, Gerretsen P

Frontiers in neurology2026Senior author

DOI: 10.3389/fneur.2026.1675116 PMID: 41948616

Diminished microstructural caudate asymmetry in schizophrenia spectrum disorders.

Nader G, Azizi N, Ducharme M, Graff A, Gerretsen P, Desmond KL, De Luca V

Psychiatry research. Neuroimaging2026

DOI: 10.1016/j.pscychresns.2026.112307 PMID: 42777344

A novel method of measuring cortical thickness in schizophrenia spectrum disorders: a preliminary analysis of multi-echo fast spoiled gradient echo MRI.

Nader G, Ducharme M, Torres-Carmona E, Fischer C, Graff A, Gerretsen P, Simpson AIF, Strafella A, Desmond KL, De Luca V

Psychiatry research2026

DOI: 10.1016/j.psychres.2025.116817 PMID: 41349229

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Philip Gerretsen

Research

Latest papers

Latest funding

Effects of Violence Trajectories on Treatment Outcomes in Schizophrenia Spectrum Disorders.

Evaluating the effect of antidepressants for persistent postural-perceptual dizziness: A systematic review.

Antipsychotic Polypharmacy and Epigenetic Age Acceleration in Schizophrenia.

Lymphocyte subpopulations and EEG asymmetry.

Machine Learning-Based Discrimination of Treatment-Resistant Schizophrenia Using Structural Brain Imaging: A Multi-Site Proof-of-Concept Study.

Virtual Reality for the Treatment of Auditory Hallucinations in Schizophrenia Spectrum Disorders: a Systematic Review and Meta-Analysis.

The Immediate and Sustained Effects of Multi-Session Biparietal Transcranial Direct Current Stimulation on Insight in Schizophrenia.

Neural correlates of illness awareness in obesity: an exploratory pilot fMRI study.

Diminished microstructural caudate asymmetry in schizophrenia spectrum disorders.

A novel method of measuring cortical thickness in schizophrenia spectrum disorders: a preliminary analysis of multi-echo fast spoiled gradient echo MRI.

Metformin for treatment-resistant bipolar depression (TRBD) with co-morbid insulin resistance (IR): A double-blind randomized control trial

The effect of non-invasive brain stimulation on treatment adherence in first-episode schizophrenia

Long COVID-19 on the human brain

Neuromelanin Signals in the Substantia Nigra of Patients with Treatment Resistant Schizophrenia: A Cross-Sectional MRI Study

The Muscarinic Hypothesis of Schizophrenia: A [18F]-FP-TZTP PET Study

The effects of adjunctive transcranial direct current stimulation on treatment adherence in schizophrenia

The role of Glutathione in Glutamatergic system dysregulation in Treatment-Resistant Schizophrenia

Frequent collaborators

Ariel Graff-Guerrero

Gary Remington

Corinne Fischer

Corinne Fischer

Margaret Hahn

Clement Zai

Lena Quilty

Mahesh Menon

Sanjeev Kumar

Sanjeev Sockalingam

John Strauss

Peter Selby

Samantha Wells

Soham Rej

Zahinoor Ismail

Satya Dash

Daphne Voineskos

Erica Vieira

Branka Agic

Branka Agic

Benoit Mulsant

Etienne Sibille

Wei Wang

Daniel Felsky

Kevin Shield

Shannon Lange

Nathan Kolla

David Lloyd Streiner

Bernard Le Foll

George Foussias

Antonio Strafella

Isabelle Boileau

Samantha Wells

Victor Tang

Osnat Melamed

Sean Hill

Clement Ma

Tarek Rajji

Sean Kidd

John Griffiths