Philip Gerretsen

5.4k citations

173 papers · 3.7k indexed · h-index 33

Impact in

Biological Psychiatry top 0.5%
- Tryptophan and brain disorders
Psychiatry and Mental health top 0.5%
- Schizophrenia research and treatment
- Bipolar Disorder and Treatment
- Dementia and Cognitive Impairment Research

Papers in

Biological Psychiatry 14
- Tryptophan and brain disorders 14
Psychiatry and Mental health 83
- Schizophrenia research and treatment 55
- Psychosomatic Disorders and Their Treatments 15
- Dementia and Cognitive Impairment Research 14

Co-authors: Ariel Graff‐Guerrero Bruce G. Pollock Fernando Caravaggio Shinichiro Nakajima Gary Remington Eric Plitman Yusuke Iwata Julia Kim
Journals: Biological Psychiatry (12 papers)Psychiatry Research (12 papers)Schizophrenia Research (11 papers)American Journal of Geriatric Psychiatry (6 papers)Journal of Neural Transmission (5 papers)
Partner nations: Canada Japan United States

In The Last Decade

Philip Gerretsen

165 papers receiving 3.7k citations

Peers

Countries citing papers authored by Philip Gerretsen

Since Specialization

Citations

This map shows the geographic impact of Philip Gerretsen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Philip Gerretsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Philip Gerretsen more than expected).

Fields of papers citing papers by Philip Gerretsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Philip Gerretsen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Philip Gerretsen. The network helps show where Philip Gerretsen may publish in the future.

Co-authors

The 25 scholars most cited alongside Philip Gerretsen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Philip Gerretsen Line = papers co-authored together Philip Gerretsen links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Impaired insight in schizophrenia is associated with higher frontoparietal cerebral blood flow: an arterial spin labeling study Schizophrenia ·Е П Велихов, К С Самонова, Freshwater By, Sofia Chavez, Fumihiko Ueno, S.G. Goodman, David Roberto Cisneros Alemán, Melpomeni Moustaki, Vincenzo De Luca, Daniel M. Blumberger, Gary Remington, Bruce G. Pollock, Ariel Graff‐Guerrero, Philip Gerretsen	2025	1
2	Assessing past suicidal behaviour in schizophrenia spectrum disorders using the Columbia-Suicide Severity Rating Scale and the Beck Scale for Suicide Ideation: Analysis across the life-span Schizophrenia Research ·J. L. Starr, 장훈, Philip Gerretsen, Corinne E. Fischer, Ariel Graff, Carol Borlido, Gary Remington, Vincenzo De Luca	2024	0
3	Evaluation of the Glymphatic System in Schizophrenia Spectrum Disorder Using Proton Magnetic Resonance Spectroscopy Measurement of Brain Macromolecule and Diffusion Tensor Image Analysis Along the Perivascular Space Index Schizophrenia Bulletin ·Melpomeni Moustaki, R. Okubo, Freshwater By, Garg Jp, Е П Велихов, Fumihiko Ueno, Teruki Koizumi, Amit Kumar, Sri Mahavir Agarwal, Vincenzo De Luca, Philip Gerretsen, Ariel Graff‐Guerrero	2024	9
4	The effect of second-generation antipsychotics on anxiety/depression in patients with schizophrenia: A systematic review and meta-analysis Schizophrenia Research ·Melpomeni Moustaki, Tao Dayun, Freshwater By, 周来祥, Капсулова Полина Валентиновна, R. Okubo, Claude Takenga, Fumihiko Ueno, 张亚春, Myeong-Hoon Joo, Sri Mahavir Agarwal, Philip Gerretsen, Mohammad Mahdi Khanmohammadi Khorami	2024	5
5	26. Dopamine Abnormalities in the Substantia Nigra of Diverse and Comorbid Substance Users are Linked to Stimulant Use Disorder Severity and Executive Dysfunction Biological Psychiatry ·Guosheng Duan, 利朗唐木, Colin Hawco, Isabelle Boileau, Philip Gerretsen, Victor M. Tang, Matthew E. Sloan, Brian D. Burne, Dmitrii Kupriyanov, Jeffrey D. Wardell, Etienne Sibille, Lena C. Quilty, Anthony C. Ruocco, Yuliya S. Nikolova	2024	0
6	Elevated intrinsic cortical curvature in treatment-resistant schizophrenia: Evidence of structural deformation in functional connectivity areas and comparison with alternate indices of structure Schizophrenia Research ·R. Okubo, Fumihiko Ueno, Yusuke Iwata, Amit Kumar, Е П Велихов, Wanna Mar, Melpomeni Moustaki, Sri Mahavir Agarwal, Vincenzo De Luca, Gary Remington, Philip Gerretsen, Ariel Graff‐Guerrero	2024	1
7	Psilocybin to promote synaptogenesis in the brains of patients with mild cognitive impairment Medical Hypotheses ·Е П Велихов, Freshwater By, Дун-Шен Сюй, Fumihiko Ueno, Evelin Logis, Vincenzo De Luca, Bruce G. Pollock, Alastair J. Flint, Muhammad Ishrat Husain, Ariel Graff‐Guerrero, Philip Gerretsen	2023	1
8	Insight in schizophrenia is associated with psychoeducation and social support: Testing a new more comprehensive insight tool in Turkish schizophrenia patients PLoS ONE ·L.R.B. Hammons, Philip Gerretsen, Е П Велихов, B. Sziffer, А. С. Зимин, M. S. Simmons, Sibel Örsel, Fonda Tokushige, Kadir Özdel	2023	2
9	GABAergic signaling in alcohol use disorder and withdrawal: pathological involvement and therapeutic potential Frontiers in Neural Circuits ·Hamzah Saei, 段六生, Victor M. Tang, Matthew E. Sloan, Yuliya S. Nikolova, 利朗唐木, Anthony C. Ruocco, Kevin D. Shield, Daphne Voineskos, Daniel M. Blumberger, Isabelle Boileau, Nikki Bozinoff, Philip Gerretsen, Érica Leandro Marciano Vieira, Osnat C. Melamed, Etienne Sibille, Lena C. Quilty, Thomas D. Prévot	2023	22
10	Metformin for the prevention of clozapine‐induced weight gain: A retrospective naturalistic cohort study Acta Psychiatrica Scandinavica ·Nicolette Stogios, Anuja Sudarsanan, Information. Information Division, Marcos Sanches, Valerie Powell, Philip Gerretsen, Ariel Graff‐Guerrero, Araba Chintoh, George Foussias, Gary Remington, Margaret Hahn, Sri Mahavir Agarwal	2022	14
11	Impact of standardizing care for agitation in dementia using an integrated care pathway on an inpatient geriatric psychiatry unit International Psychogeriatrics ·Sanjeev Kumar, Prajak Sawangsoda, Amer M. Burhan, H.F. Jordan, Philip Gerretsen, Ariel Graff‐Guerrero, Zhao Jianting, Clement Ma, Benoit H. Mulsant, Bruce G. Pollock, Zeinab Saberi, Simon Davies, Tarek K. Rajji	2022	2
12	Self- versus informant-report of cognitive decline in mild cognitive impairment: Concordance with cognitive and functional performance. Neuropsychology ·Melissa Milanovic, Bohan Yu, Meryl A. Butters, Corinne E. Fischer, Alastair J. Flint, Philip Gerretsen, Nathan Herrmann, Krista L. Lanctôt, Linda Mah, Benoit H. Mulsant, Bruce G. Pollock, Tarek K. Rajji, Christopher R. Bowie	2022	9
13	Glutathione Levels and Glutathione-Glutamate Correlation in Patients With Treatment-Resistant Schizophrenia Schizophrenia Bulletin Open ·Yusuke Iwata, Shinichiro Nakajima, Eric Plitman, Peter Truong, Ali Bani‐Fatemi, Fernando Caravaggio, Julia Kim, Parita Shah, Wanna Mar, Sofia Chavez, Gary Remington, Philip Gerretsen, Vincenzo De Luca, Napapon Sailasuta, Ariel Graff‐Guerrero	2021	22
14	A Measure to Assess Illness Awareness in Problem Gambling: Gambling Awareness and Insight Scale (GAS) Journal of Gambling Studies ·Julia Kim, 周来祥, Lena C. Quilty, Peter Selby, Parita Shah, Fernando Caravaggio, Fumihiko Ueno, Bruce G. Pollock, Ariel Graff‐Guerrero, Philip Gerretsen	2021	7
15	Sequential drug treatment algorithm for agitation and aggression in Alzheimer’s and mixed dementia Journal of Psychopharmacology ·Simon Davies, Amer M. Burhan, Zhao Jianting, Philip Gerretsen, Ariel Graff‐Guerrero, Zeinab Saberi, Sanjeev Kumar, H.F. Jordan, Bruce G. Pollock, Benoit H. Mulsant, Tarek K. Rajji	2018	85
16	Altered functional connectivity in brain networks underlying self-referential processing in delusions of reference in schizophrenia Psychiatry Research Neuroimaging ·Sara Larivière, Katie M. Lavigne, Todd S. Woodward, Philip Gerretsen, Ariel Graff‐Guerrero, Mahesh Menon	2017	33
17	Dopamine D_2/3Receptor Occupancy Following Dose Reduction Is Predictable With Minimal Plasma Antipsychotic Concentrations: An Open-Label Clinical Trial Schizophrenia Bulletin ·Shinichiro Nakajima, Hiroyuki Uchida, Robert R. Bies, Fernando Caravaggio, Takefumi Suzuki, Eric Plitman, Wanna Mar, Philip Gerretsen, Bruce G. Pollock, Benoit H. Mulsant, David C. Mamo, Ariel Graff‐Guerrero	2015	18
18	Glutamate-mediated excitotoxicity in schizophrenia: A review European Neuropsychopharmacology ·Eric Plitman, Shinichiro Nakajima, Camilo de la Fuente‐Sandoval, Philip Gerretsen, M. Mallar Chakravarty, Kyoung Jun Ahn, Jun Ku Chung, Fernando Caravaggio, Yusuke Iwata, Gary Remington, Ariel Graff‐Guerrero	2014	121
19	Exploring the Neural Correlates of Delusions of Reference Biological Psychiatry ·Mahesh Menon, Taylor W. Schmitz, Adam K. Anderson, Ariel Graff, Michèle Korostil, David C. Mamo, Philip Gerretsen, Jean Addington, Gary Remington, Shitij Kapur	2011	54
20	Reversible cerebral vasoconstriction syndrome: A thunderclap headache-associated condition Current Neurology and Neuroscience Reports ·Philip Gerretsen, R. Kern	2009	15

About Philip Gerretsen

Philip Gerretsen is a scholar working on Biological Psychiatry, Psychiatry and Mental health, Cognitive Neuroscience, Clinical Psychology and Cellular and Molecular Neuroscience, having authored 173 papers that have together received 3.7k indexed citations. Recurring topics across this work include Schizophrenia research and treatment (55 papers), Functional Brain Connectivity Studies (29 papers), Neurotransmitter Receptor Influence on Behavior (20 papers), Advanced Neuroimaging Techniques and Applications (15 papers), Psychosomatic Disorders and Their Treatments (15 papers), Epigenetics and DNA Methylation (15 papers), Tryptophan and brain disorders (14 papers) and Dementia and Cognitive Impairment Research (14 papers). The work is most often cited by research in Biological Psychiatry (457 citations), Psychiatry and Mental health (1.6k citations), Cognitive Neuroscience (1.1k citations), Behavioral Neuroscience (132 citations) and Geriatrics and Gerontology (127 citations). Philip Gerretsen has collaborated with scholars based in Canada, Japan and United States. Frequent co-authors include Ariel Graff‐Guerrero, Bruce G. Pollock, Fernando Caravaggio, Shinichiro Nakajima, Gary Remington, Eric Plitman, Yusuke Iwata, Julia Kim, Jun Ku Chung and M. Mallar Chakravarty. Their work appears in journals such as Biological Psychiatry, Psychiatry Research, Schizophrenia Research, American Journal of Geriatric Psychiatry and Journal of Neural Transmission.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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