Publications by authors named "Ragy R Girgis"

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Concerted elevations of cortical and striatal glutamate and GABA in antipsychotic-free individuals at clinical high-risk for psychosis.
Ragy R Girgis, Camilo de la Fuente-Sandoval, Roberto Lewis-Fernández, Francisco Reyes-Madrigal, Melanie M Wall

Neuropsychopharmacology· December 2025

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Evaluation of large language model chatbot responses to psychotic prompts.
Elaine Shen, Fadi Hamati, Meghan Rose Donohue, Ragy R Girgis, Jeremy Veenstra-VanderWeele

medRxiv· November 2025

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The Psychiatric Manifestations of Sturge Weber Syndrome: A Scoping Review.
Veronica Lee, Ragy R Girgis

J Child Neurol· August 2025

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An analysis of firearm legality and lethality in 625 U.S.-based mass murders involving firearms.
Russell T Rogers, Hannah Hesson, Sloan E Bergstresser, Paul S Appelbaum, Gary Brucato, Ragy R Girgis

J Forensic Sci· July 2025

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Parsing stigma's relationship with the psychosocial functioning of youth identified as at clinical high risk for psychosis: evaluating whether symptom stigma or labelling stigma is stronger.
Lawrence H Yang, Margaux M Grivel, Drew Blasco, Ragy R Girgis, Debbie Huang

Br J Psychiatry· December 2024

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An analysis of 105 female-perpetrated mass murders.
Ragy R Girgis, Dung Hoang, Hannah Hesson, Gabriella Dishy, Kathryn Lee

J Forensic Sci· November 2024

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Biomarkers for Cognitive Control, Response Inhibition, Aggressivity, Impulsivity, and Violence.
Matthew J Hoptman, Ragy R Girgis, Daniel C Javitt

Adv Neurobiol· November 2024

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The relationship between COMT, proline, and negative symptoms in clinical high risk and recent psychosis onset.
James D Clelland, Hannah Hesson, Krista Ramiah, Julia Anderson, Abraham Thengampallil, Ragy R Girgis

Transl Psychiatry· October 2024

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Prior overweighting relates to delusional ideation in individuals at clinical high-risk for psychosis.
Seth C Baker, Sylvie J Messer, Ragy R Girgis, Guillermo Horga

Schizophr Res· April 2024

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Generalizability and Out-of-Sample Predictive Ability of Associations Between Neuromelanin-Sensitive Magnetic Resonance Imaging and Psychosis in Antipsychotic-Free Individuals.
Kenneth Wengler, Seth C Baker, Anastasia Velikovskaya, Alissa Fogelson, Ragy R Girgis

JAMA Psychiatry· February 2024

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Medial Prefrontal Cortex Dysfunction Mediates Working Memory Deficits in Patients With Schizophrenia.
John C Williams, Zu Jie Zheng, Philip N Tubiolo, Jacob R Luceno, Roberto B Gil, Ragy R Girgis

Biol Psychiatry Glob Open Sci· October 2023

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Illness Phase as a Key Assessment and Intervention Window for Psychosis.
Christian G Kohler, Daniel H Wolf, Anissa Abi-Dargham, Alan Anticevic, Youngsun T Cho, Ragy R Girgis

Biol Psychiatry Glob Open Sci· July 2023

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Dose-Dependent Augmentation of Neuroplasticity-Based Auditory Learning in Schizophrenia: A Double-Blind, Placebo-Controlled, Randomized, Target Engagement Clinical Trial of the NMDA Glutamate Receptor Agonist d-serine.
Pejman Sehatpour, Dan V Iosifescu, Heloise M De Baun, Constance Shope, Megan R Mayer, Ragy R Girgis

Biol Psychiatry· July 2023

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Increased parietal and occipital lobe gyrification predicts conversion to syndromal psychosis in a clinical high-risk cohort.
Rakshathi Basavaraju, Jeanelle France, Hannah C Sigmon, Ragy R Girgis, Gary Brucato

Schizophr Res· May 2023

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An Analysis of Motivating Factors in 1,725 Worldwide Cases of Mass Murder Between 1900-2019.
Gary Brucato, Hannah Hesson, Gabriella Dishy, Kathryn Lee, Tyler Pia, Ragy R Girgis

J Forens Psychiatry Psychol· May 2023

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Victimology of Mass Shootings and Mass Murders Not Involving Firearms.
Hannah M Hesson, Eileen A Shea, Paul S Appelbaum, Gabriella Dishy, Carol Cohen-Romano, Ragy R Girgis

Violence Vict· February 2023

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The association between mental health stigma and face emotion recognition in individuals at risk for psychosis.
Shaynna N Herrera, Emmett M Larsen, Joseph S Deluca, Francesca M Crump, Margaux Grivel, Ragy R Girgis

Stigma Health· February 2023

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The neurobiology of duration of untreated psychosis: a comprehensive review.
Anthony W Zoghbi, Jeffrey A Lieberman, Ragy R Girgis

Mol Psychiatry· January 2023

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Mass murders involving firearms and other methods in school, college, and university settings: Findings from the Columbia Mass Murder Database.
Ragy R Girgis, Russell Tyler Rogers, Hannah Hesson, Jeffrey A Lieberman, Paul S Appelbaum

J Forensic Sci· January 2023

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Hippocampal Glutamate and Positive Symptom Severity in Clinical High Risk for Psychosis.
Rakshathi Basavaraju, Jia Guo, Scott A Small, Jeffrey A Lieberman, Ragy R Girgis

JAMA Psychiatry· February 2022

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Smoked Cannabis Effects in Cannabis Users at Clinical High-Risk for Psychosis: A Further Investigation of Cognition and Reward.
Sean P Madden, John G Keilp, Olivia Wu, Cheryl M Corcoran, Ragy R Girgis

Cannabis· February 2022

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The neurobiology of auditory and visual perceptual abnormalities in a clinical high-risk for psychosis cohort: A pilot morphometric magnetic resonance imaging study.
Ragy R Girgis, Xinyang Feng, Gary Brucato, Hannah C Sigmon, Jeffrey A Lieberman

J Psychiatr Res· October 2021

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Experimentally exploring the potential behavioral effects of personalized genetic information about marijuana and schizophrenia risk.
Matthew S Lebowitz, Paul S Appelbaum, Lisa B Dixon, Ragy R Girgis, Melanie M Wall

J Psychiatr Res· August 2021

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