نتایج جستجو برای: related potentials erp

تعداد نتایج: 1261431  

Journal: :مدیریت اطلاعات سلامت 0
جمشید فقری استادیار میکروب شناسی دانشگاه علوم پزشکی اصفهان مجید کریمی دکتری پزشکی، رئیس مرکز پزشکی شهید مطهری ذوب آهن صفورا حیدری کارشناس مدیریت خدمات بهداشتی و درمانی مرکز پزشکی شهید مطهری

introduction: hospitals require a central monitoring and improve planning process in order to enhance patient care quality. regarding the current developments in health care systems, the question is which information system can support transformation of hospitals. this review article focuses on the capacity of enterprise resource planning (erp) systems for the transformation of hospitals. metho...

Journal: :Cerebral cortex 2004
Scott A Huettel Martin J McKeown Allen W Song Sarah Hart Dennis D Spencer Truett Allison Gregory McCarthy

We investigated the relation between electrophysiological and hemodynamic measures of brain activity through comparison of intracranially recorded event-related local field potentials (ERPs) and blood-oxygenation level dependent functional magnetic resonance imaging (BOLD fMRI). We manipulated the duration of visual checkerboard stimuli across trials and measured stimulus-duration-related chang...

Journal: :Developmental psychology 2000
J E Richards

This study examined covert shifts of attention in infants aged 14, 20, and 26 weeks of age with scalp-recorded event-related potentials (ERPs). The infants were tested in a spatial cuing procedure. The reaction time to localize the target showed covert attention shifts (e.g., response facilitation or inhibition of return depending on cue-target stimulus onset asynchrony). There was a larger P1 ...

2014
David P Nguyen Shih-Chieh Lin

Event-related potentials (ERPs) are widely used in both healthy and neuropsychiatric conditions as physiological indices of cognitive functions. Contrary to the common belief that cognitive ERPs are generated by local activity within the cerebral cortex, here we show that an attention-related ERP in the frontal cortex is correlated with, and likely generated by, subcortical inputs from the basa...

2012
Jijun Wang Qian Guo

ABSTRACT Event-related potentials (ERPs) are objective electrophysiological indicators that can be used to assess cognitive processes in the human brain. Psychiatric researchers in China have applied this method to study schizophrenia since the early 1980s. ERP measures used in the study of schizophrenia include contingent negative variation (CNV), P300, mismatch negativity (MMN), error-related...

Journal: :Journal of cognitive neuroscience 1994
P Praamstra A S Meyer W J Levelt

Abstract Two experiments examined phonological priming effects on reaction times, error rates, and event-related brain potential (ERP) measures in an auditory lexical decision task. In Experiment 1 related prime-target pairs rhymed, and in Experiment 2 they alliterated (i.e., shared the consonantal onset and vowel). Event-related potentials were recorded in a delayed response task. Reaction tim...

Journal: :Frontiers in computational neuroscience 2016
Zeinab Mortezapouraghdam Robert C. Wilson Lars Schwabe Daniel J. Strauss

We study the effect of long-term habituation signatures of auditory selective attention reflected in the instantaneous phase information of the auditory event-related potentials (ERPs) at four distinct stimuli levels of 60, 70, 80, and 90 dB SPL. The analysis is based on the single-trial level. The effect of habituation can be observed in terms of the changes (jitter) in the instantaneous phase...

2009
Kristie J. Fisher Miriam Bassok

Research on people’s arithmetic knowledge (e.g., 2 + 5 = 7) suggests that it is organized and accessed in a way analogous to other forms of conceptual knowledge (e.g., tulips and daisies are flowers). Evidence for this claim comes in part from research that recorded event-related brain potentials (ERPs) and found that incorrect arithmetic facts evoke a response that is analogous to the “N400” r...

2000
Tiffany A. Ito John T. Cacioppo

Event-related brain potentials (ERPs), which provide on-line measures of categorization processes, were used to assess the implicit and explicit categorization of stimuli along evaluative (positive and negative) and nonevaluative (people and no-people) dimensions. Participants were exposed to stimuli that simultaneously varied along both dimensions, but were explicitly instructed to categorize ...

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