KNIGHT, R. T. Aging decreases auditory event-related potentials to unexpected stimuli in humans. NEUROBIOL AGING 8(2) 109--I 13, 1987.--A P300 event-related potential (P3a) was recorded to unexpected, deviant auditory stimuli requiring no behavioral response. This brain potential underwent systematic latency prolongation and amplitude decrease with advancing age. The age-related changes paralle...

The lateral distribution of the P300 component of the event-related brain potential (ERP) was studied in five epileptic patients whose corpus callosum had been surgically sectioned and in seven neurologically intact controls. The P300 was elicited in an auditory "oddball" task using high- and low-pitched tones and in a visual oddball task in which target words were presented either to the left ...

OBJECTIVE To establish reference intervals for cognitive potential P300 latency using tone burst stimuli. METHODS This study involved 28 participants aged between 18 and 59 years. P300 recordings were performed using a two-channel device (Masbe, Contronic). Electrode placement was as follows: Fpz (ground electrode), Cz (active electrode), M1 and M2 (reference electrodes). Intensity correspond...

Cardiomyopathy is the main cause of death in Duchenne muscular dystrophy. Here, we show that oral administration of resveratrol, which leads to activation of an NAD(+)-dependent protein deacetylase SIRT1, suppresses cardiac hypertrophy and fibrosis and restores cardiac diastolic function in dystrophin-deficient mdx mice. The pro-hypertrophic co-activator p300 protein but not p300 mRNA was up-re...

The application of the P300 component of the event-related brain potential to the study of attentional impairment in schizophrenia is discussed, and two recent studies are described. In one, the relative effects on P300 of stimulus modality and probability were evaluated. The data showed that the P300 is smaller in schizophrenic patients relative to normal controls for low-probability auditory ...

Evidence of hemispheric asymmetries in schizophrenia has been reported from different research areas. Asymmetries in evoked potential P300 topography are still controversial because of inconsistent findings. In the present study. previous results of abnormal lateralization of P300 were replicated in stabilized residual Schizophrenie patients. Auditory P300 was recorded during an odd ball task i...

The comparative wavelet analysis presented in details by Demiralp et al. (1999), Ademoglu (1995) and by Başar et al. (2001) will be now applied to oddball P300 results (see Başar-Eroglu et al., 2001). The results obtained basically confirm those obtained by using adaptive digital filtering: The delta response dominates the P300 potential while the theta response is prolonged in a second late wi...

We demonstrated two solution-processable triphenylamine dendric nonamers: the N-atom-centered nonamer (TPA9-1) and the phenyl-centered nonamer (TPA9-2). The materials were found to have high glass transition temperature (Tg) up to almost 200°C. The fractional difference of the central units of the molecular structures caused different adaptability due to the different ionization potentials (Ip)...

of Thesis Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Master of Science DISSOCIATING COMPONENTS OF COGNITIVE CONTROL USING HIGHDENSITY EVENT-RELATED POTENTIALS: IMPLEMENTATION OF CONTROL, CONFLICT PROCESSING, AND ERROR MONITORING By Michael James Larson May 2004 Chair: William M. Perlstein Major Department: Clinical ...