Remediation of Schizophrenia Sensory Gating Deficit With Aripiprazole

  • participants needed
  • sponsor
    New Mexico VA Healthcare System
Updated on 7 November 2020
drug abuse
structured clinical interview
psychiatric hospitalization


The purpose of this study is the use of magnetoencephalography or MEG (a machine that measures magnetic activity in your brain) and electroencephalography or EEG (a technique that measures electrical activity in your brain) to study how sounds are processed in individuals with schizophrenia prior to initiation with aripiprazole treatment and after three months of taking the antipsychotic medication aripiprazole.


Problems with attention and perception are core features of schizophrenia and are hypothesized to result from defects in the filtering or gating of sensory input. Examination of this requires neuroimaging techniques with high temporal resolution. High-density EEG and MEG in combination with structural magnetic resonance imaging (sMRI) are used to map sensory gating. In a number of recent studies patient treated with novel antipsychotics have been shown to have P50 gating ratios resembling those of normal controls rather than that of schizophrenia subjects treatment with conventional antipsychotics. To date, there is no literature on the effects of aripiprzole on sensory gating. Subjects who meet all inclusion criteria will receive a clinical interview, an MRI, MEG, and neuropsychological testing before starting treatment with aripiprazole and again 3 months later to determine if patients with schizophrenia who are treated with aripiprazole will demonstrate a sensory gating ratio similar to normal controls, indicating no deficit in sensory gating

Condition Schizophrenia, Sensory Gating
Treatment Aripiprzole
Clinical Study IdentifierNCT00567099
SponsorNew Mexico VA Healthcare System
Last Modified on7 November 2020


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