This study investigated behavioral inhibition in female college students with psychometrically defined schizotypal traits using a Go/NoGo task and eventrelated potentials (ERPs). The schizotypal-trait (n = 15) and normal control (n = 15) groups were selected based on scores of the Schizotypal Personality Questionnaire (SPQ). The Go/NoGo task consisted of Go (requires response) and NoGo (require...

word count: 250 Word count: 3,906 Tables: 2 Figures: 4 Supplementary materials: 1 Kuperberg GR, Ditman, S, Choi Perrachione, A. (In Press). When proactivity fails: An electrophysiological study of establishing reference in schizophrenia. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging 2 KUPERBERG Abstract Background: Schizophrenia is characterized by abnormalities in referential ...

Objective: To examine the effect of the active task involvement versus the passive knowledge of the structure of the stimulation on eventrelated potentials (ERPs) to violation in number sequences. This should contribute to future development of an ERP test for neurological patients. Methods: ERPs were recorded in subjects who listened to 4-item sequences of numbers incrementing by one. Half of ...

We describe a method based on the wavelet transform for denoising single-trial eventrelated potentials (ERPs). The identification of the event-related responses in the single-trials allows the study of latency jitters and cognitive processes, such as habituation, sensitization and learning. Since the method is fast and parameter free, it could complement ERP conventional analysis. D 2004 Elsevi...

For many years, meditation remained largely outside the purview of scientific research. Clinicians and researchers commonly considered meditation synonymous with reflection or relaxation, if they considered it at all. However, recent years have witnessed a surge in the scientific study of meditation. This remarkable change appears to be the result of at least two factors. First, meditation-base...

Damage to the primary visual cortex (V1) destroys the major source of anatomical input to extrastriate cortical areas (V2, V3, V4 and V5) and produces cortical blindness ± an absence of any sensation of light and colour ± in the visual ®eld contralateral to the side of the lesion. Neuroimaging studies, nevertheless, have recently demonstrated dorsal and ventral extrastriate activation for stati...