Publications by authors named "Betsy Schaefer"

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Convergence of Cannabis and Psychosis on the Dopamine System.
Jessica Ahrens, Sabrina D Ford, Betsy Schaefer, David Reese, Ali R Khan

JAMA Psychiatry· June 2025

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The functional and structural associations of aberrant microglial activity in major depressive disorder.
Jasmine D Cakmak, Linshan Liu, Stefan E Poirier, Betsy Schaefer, Raju Poolacherla

J Psychiatry Neurosci· June 2022

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Temporoparietal Junction Functional Connectivity in Early Schizophrenia and Major Depressive Disorder.
Jacob Penner, Elizabeth A Osuch, Betsy Schaefer, Jean Théberge, Richard W J Neufeld

Chronic Stress (Thousand Oaks)· December 2018

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Higher order thalamic nuclei resting network connectivity in early schizophrenia and major depressive disorder.
Jacob Penner, Elizabeth A Osuch, Betsy Schaefer, Jean Théberge, Richard W J Neufeld

Psychiatry Res Neuroimaging· February 2018

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Cognitive performance is associated with gray matter decline in first-episode psychosis.
Kara Dempster, Ross Norman, Jean Théberge, Maria Densmore, Betsy Schaefer

Psychiatry Res Neuroimaging· June 2017

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Neurometabolic abnormalities in schizophrenia and depression observed with magnetic resonance spectroscopy at 7 T.
Reggie Taylor, Elizabeth A Osuch, Betsy Schaefer, Nagalingam Rajakumar, Richard W J Neufeld

BJPsych Open· January 2017

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Functional magnetic resonance spectroscopy of glutamate in schizophrenia and major depressive disorder: anterior cingulate activity during a color-word Stroop task.
Reggie Taylor, Richard W J Neufeld, Betsy Schaefer, Maria Densmore, Nagalingam Rajakumar

NPJ Schizophr· June 2016

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Medial Prefrontal and Anterior Insular Connectivity in Early Schizophrenia and Major Depressive Disorder: A Resting Functional MRI Evaluation of Large-Scale Brain Network Models.
Jacob Penner, Kristen A Ford, Reggie Taylor, Betsy Schaefer, Jean Théberge

Front Hum Neurosci· April 2016

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Glutamatergic metabolite correlations with neuropsychological tests in first episode schizophrenia.
Kara Dempster, Ross Norman, Jean Théberge, Maria Densmore, Betsy Schaefer

Psychiatry Res· August 2015

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Increased glutamate levels observed upon functional activation in the anterior cingulate cortex using the Stroop Task and functional spectroscopy.
Reggie Taylor, Betsy Schaefer, Maria Densmore, Richard W J Neufeld, Nagalingam Rajakumar

Neuroreport· February 2015

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Progressive membrane phospholipid changes in first episode schizophrenia with high field magnetic resonance spectroscopy.
Jodi Miller, Dick J Drost, Eric Jensen, Rahul Manchanda, Sandra Northcott, Betsy Schaefer

Psychiatry Res· January 2012

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Grey matter and social functioning correlates of glutamatergic metabolite loss in schizophrenia.
Naoko Aoyama, Jean Théberge, Dick J Drost, Rahul Manchanda, Sandra Northcott, Betsy Schaefer

Br J Psychiatry· June 2011

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Retrosplenial cortex connectivity in schizophrenia.
Robyn L Bluhm, Jodi Miller, Ruth A Lanius, Elizabeth A Osuch, Kristine Boksman, Betsy Schaefer

Psychiatry Res· October 2009

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Longitudinal 4.0 Tesla (31)P magnetic resonance spectroscopy changes in the anterior cingulate and left thalamus in first episode schizophrenia.
Jodi Miller, Peter Williamson, J Eric Jensen, Rahul Manchanda, Ravi Menon, Betsy Schaefer

Psychiatry Res· August 2009

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Longitudinal grey-matter and glutamatergic losses in first-episode schizophrenia.
Jean Théberge, Kate E Williamson, Naoko Aoyama, Dick J Drost, Rahul Manchanda, Betsy Schaefer

Br J Psychiatry· October 2007

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Spontaneous low-frequency fluctuations in the BOLD signal in schizophrenic patients: anomalies in the default network.
Robyn L Bluhm, Jodi Miller, Ruth A Lanius, Elizabeth A Osuch, Kristine Boksman, Betsy Schaefer

Schizophr Bull· July 2007

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Monitoring brain oxygen saturation during coronary bypass surgery: a randomized, prospective study.
John M Murkin, Sandra J Adams, Richard J Novick, Mackenzie Quantz, Daniel Bainbridge, Betsy Schaefer

Anesth Analg· January 2007

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Grey and white matter differences in brain energy metabolism in first episode schizophrenia: 31P-MRS chemical shift imaging at 4 Tesla.
J Eric Jensen, Jodi Miller, Peter C Williamson, Richard W J Neufeld, Ravi S Menon, Betsy Schaefer

Psychiatry Res· March 2006

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Comparative study of proton and phosphorus magnetic resonance spectroscopy in schizophrenia at 4 Tesla.
Jean Théberge, Yousef Al-Semaan, J Eric Jensen, Peter C Williamson, Richard W J Neufeld, Betsy Schaefer

Psychiatry Res· November 2004

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Duration of untreated psychosis vs. N-acetylaspartate and choline in first episode schizophrenia: a 1H magnetic resonance spectroscopy study at 4.0 Tesla.
Jean Théberge, Yousef Al-Semaan, Dick J Drost, Ashok K Malla, Richard W J Neufeld, Betsy Schaefer

Psychiatry Res· July 2004

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Focal changes in brain energy and phospholipid metabolism in first-episode schizophrenia: 31P-MRS chemical shift imaging study at 4 Tesla.
J Eric Jensen, Jodi Miller, Peter C Williamson, Richard W J Neufeld, Ravi S Menon, Betsy Schaefer

Br J Psychiatry· May 2004

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Glutamate and glutamine in the anterior cingulate and thalamus of medicated patients with chronic schizophrenia and healthy comparison subjects measured with 4.0-T proton MRS.
Jean Théberge, Yousef Al-Semaan, Peter C Williamson, Ravi S Menon, Richard W J Neufeld, Betsy Schaefer

Am J Psychiatry· December 2003

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Glutamate and glutamine measured with 4.0 T proton MRS in never-treated patients with schizophrenia and healthy volunteers.
Jean Théberge, Robert Bartha, Dick J Drost, Ravi S Menon, Ashok Malla, Betsy Schaefer

Am J Psychiatry· November 2002

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