Brian Marcy
Massachusetts Mental Health Center
4 Papers
81 Citations
Brian Marcy is an academic researcher from Massachusetts Mental Health Center. The author has contributed to research in topics: Late positive component & Neuropsychological test. The author has an hindex of 4, co-authored 4 publications. Previous affiliations of Brian Marcy include Harvard University.
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Papers
P300 topographic asymmetries are present in unmedicated schizophrenics.
Steven F. Faux,Robert W. McCarley,Paul G. Nestor,Martha E. Shenton,Seth D. Pollak,Virginia Penhune,Erik Mondrow,Brian Marcy,Ann Peterson,Thomas B. Horvath,Kenneth L. Davis +10 more
TL;DR: It is concluded that P300 topographic asymmetries are present in unmedicated schizophrenics, compatible with the growing body of data suggesting left temporal lobe structural abnormalities in schizophrenia.
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Preservation of P300 event-related potential topographic asymmetries in schizophrenia with use of either linked-ear or nose reference sites.
TL;DR: The LER is preferable for studies using subject groups and methodology similar to the present study, and better performance of the LER in differentiating schizophrenics versus normal controls, due to lower wave form variability.
71
Two syndromes of schizophrenic psychopathology associated with left vs. right temporal deficits in P300 amplitude. Four case reports.
Martha E. Shenton,Ruth Ballinger,Brian Marcy,Steven F. Faux,Melanie Cane,Margorie Lemay,Geraldine Cassens,Michael J. Coleman,Frank H. Duffy,Robert W. McCarley +9 more
TL;DR: The two right temporal deficit patients had more positive symptoms, more thought disorder, more severely impaired functioning, earlier age of onset, poorer response to neuroleptic medications, more diffuse cognitive deficits on a neuropsychological testing battery, and poorer premorbid history than the two left temporal deficit Patients.
12
ERP abnormalities during semantic processing in schizophrenia.
Jane Adams,Steven F. Faux,Paul G. Nestor,Martha E. Shenton,Brian Marcy,Scott Smith,Robert W. McCarley +6 more
TL;DR: The amplitude, latency, and topography of a specific event-related brain potential, the N400, which is elicited by semantically incongruent words and phrases in schizophrenic patients may reflect a profound disturbance in attentional processes in chronic schizophrenia.