...Hayley Riel; Erica Rudolph; Catrina MacPhee; Philip G. Tibbo; Derek J. Fisher Introduction: The present study compared the mismatch negativity (MMN) and P3a waveforms among early-phase psychosis (EPP; n = 13) individuals and healthy controls ( n = 30) to contribute to the research...

... of stimulus-rich environments. To date, only few studies have investigated whether this deficit in PD is reflected in reduced mismatch negativity (MMN), an event-related potential indexing preattentive sensitivity to unexpected stimulus changes. We tested 35 patients affected by PD and 42 matched healthy...

...Sho Horikoshi; Tetsuya Shiga; Hiroshi Hoshino; Haruka Ochiai; Keiko Kanno-Nozaki; Kazuko Kanno; Haruka Kaneko; Yasuto Kunii; Itaru Miura; Hirooki Yabe Mismatch negativity (MMN) is a component of auditory event-related potentials that reflects automatic change detection in the brain, showing...

... were altered after SD of 30-36 h. Method: We examined 22 subjects by means of several psychoacoustics tests, P300 and mismatch negativity (MMN) recordings, and brainstem auditory evoked potentials (BAEP) before and after 30-36 h of SD. Results: In the psychoacoustics tests, we found that after SD...

... group comparison of white matter fractional anisotropy (FA) by using tract-based spatial statistics in 9 patients with schizophrenia and 9 matched controls. We then measured FA specifically in the AC by using a tract-specific measurement. The latency and amplitude of the mismatch negativity (MMN) were...

...Rie Inami; Eiji Kirino; Reiichi Inoue; Toshihito Suzuki; Heii Arai Background: The goal of the present study is to identify the effect of nicotine on auditory automatic processing, as reflected by mismatch negativity (MMN), in nonsmoking schizophrenic patients. Methods: Ten nonsmoking schizophrenic...

... Neurological Institute, Montreal, Canada Key Words Smoking Nicotine Auditory selective attention Event-related potentials N100 Negative difference component Mismatch negativity P300 Abstract Acute nicotine has been found to improve task performance in smokers after smoking abstinence...

...Eiji Kirino; Reiichi Inoue The present study assessed relationships of mismatch negativity (MMN) of schizophrenics with other markers; quantitative EEG (QEEG), computed tomography (CT) and psychopathological ratings. Patients were divided into two groups before treatment; group A consisted...

... effect on N1 amplitude, we added the ignore condition for ERP measurement, which enabled us to separate mismatch negativity (MMN) from other subcomponents overlapping N1. As a result, MMN was attenuated and sleep latency was shortened on the morning following triazolam administration. Two possibilities...