Peter C. Williamson
Lawson Health Research Institute
8 Papers
121 Citations
Peter C. Williamson is an academic researcher from Lawson Health Research Institute. The author has contributed to research in topics: Schizophrenia & Neuropsychological test. The author has an hindex of 5, co-authored 8 publications.
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Papers
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,Elizabeth A. Osuch,Peter C. Williamson,Jean Théberge,Jean Théberge +8 more
- 16 Sep 2015
TL;DR: The aim of this study was to gain insight into the health of GLU neurotransmission and the GLU-GLN cycle in SZ using a 1H-fMRS protocol and to elucidate the glutamatergic response to functional activation in schizophrenia.
Brief report An MRI study of subgenual prefrontal cortex in patients with familial and non-familial bipolar I disorder
Verinder Sharma,Ravi S. Menon,Thomas J. Carr,Maria Densmore,Dwight Mazmanian,Peter C. Williamson +5 more
- 01 Jan 2003
TL;DR: These data add to the emerging literature on structural changes in the subgenual prefrontal cortex in bipolar disorder, especially in patients with a positive family history.
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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,Jean Théberge,Peter C. Williamson +6 more
TL;DR: Results support the glutamatergic theory of schizophrenia and indicate a potential glycine deficiency in the thalamus, and reduced myo-inositol concentrations in MDD suggest its involvement in the disorder.
Higher order thalamic nuclei resting network connectivity in early schizophrenia and major depressive disorder.
Jacob Penner,Jacob Penner,Jacob Penner,Elizabeth A. Osuch,Betsy Schaefer,Jean Théberge,Richard W. J. Neufeld,Ravi S. Menon,Nagalingam Rajakumar,James A. Bourne,Peter C. Williamson +10 more
TL;DR: The pulvinar and the mediodorsal nuclei of the thalamus are higher order nuclei which have been implicated in directed effort and corollary discharge systems and functional connectivity is measured in both SZ and MDD.
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Glutamatergic metabolite correlations with neuropsychological tests in first episode schizophrenia
Kara Dempster,Ross Norman,Ross Norman,Jean Théberge,Maria Densmore,Betsy Schaefer,Peter C. Williamson +6 more
TL;DR: Findings suggestive of an association between glutamatergic alterations on neurotoxicity early in the course of schizophrenia and neuropsychological test deficits and impaired social functioning at 5-year follow-up in patients with first episode psychosis are presented.
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