Text processing requires inferences for establishing coherence between successive sentences. In neuropsychological studies and brain imaging studies, these coherence-building processes have been ascribed to the right hemisphere. On the other hand, there is evidence for prefrontal brain damage causing non-aphasic language disorders, in which text level processes are impaired. In this study, we u...

Cognitive reserve (CR) is a protective mechanism that supports sustained cognitive function following damage to the physical brain associated with age, injury, or disease. The goal of the research was to identify relationships between age, CR, and brain connectivity. A sample of 90 cognitively normal adults, ages 45-64 years, had their resting-state brain activity recorded with electroencephalo...

AIMS QEEG and neuropsychological tests were used to investigate the underlying neural processes in dyslexia. METHODS A group of dyslexic children were compared with a matched control group from the Brain Resource International Database on measures of cognition and brain function (EEG and coherence). RESULTS The dyslexic group showed increased slow activity (Delta and Theta) in the frontal a...

INTRODUCTION It is unknown how the brain coordinates decisions to withstand personal costs in order to prevent other individuals' distress. Here we test whether local field potential (LFP) oscillations between brain regions create "neural contexts" that select specific brain functions and encode the outcomes of these types of intersubjective decisions. METHODS Rats participated in an "Intersu...

Understanding the mechanisms for communication in the brain remains one of the most challenging scientific questions. The communication through coherence (CTC) hypothesis was originally proposed 10 years ago, stating that two groups of neurons communicate most effectively when their excitability fluctuations are coordinated in time (i.e., coherent), and this control by cortical coherence is a f...

concomitant coronary artery bypass surgery (cabg) in patients undergoing mitral valve replacement (mvr) has been shown to be an important risk factor for hospital mortality. we evaluated preoperative characteristics, postoperative complications, in-hospital mortality rate, and length of stay in hospital for patients undergoing concurrent cabg with mvr. preoperative and postoperative clinical da...

OBJECTIVE We compared EEG coherence in children with and without AD/HD, and sought to relate observed anomalies to AD/HD symptoms. METHODS Forty children with AD/HD and 40 age- and sex-matched controls had eyes-closed resting EEG coherence calculated for eight interhemispheric electrode pairs and eight intrahemispheric pairs (four within each hemisphere) in the delta, theta, alpha, beta and "...

Neural activity across the brain shows both spatial and temporal correlations at multiple scales, and understanding these correlations is a key step toward understanding cortical processing. Correlation in the local field potential (LFP) recorded from two brain areas is often characterized by computing the coherence, which is generally taken to reflect the degree of phase consistency across tri...

Deep learning approaches have shown to be useful in assisting physicians making decisions about cancer, heart disease, degenerative brain disorders, and eye disease. In this work, a deep model was proposed for the diagnosis of retinal diseases utilizing optical coherence tomography X-ray pictures (OCT) identify four states retina The consists three different convolutional neural network (CNN) m...

Previous studies have found that respiratory variations of ventricular response in atrial fibrillation are infrequent and inconsistent. This asynchrony between heart rate and respiration may characterize the physiological mechanisms coupling heart rate and systolic blood pressure oscillations in the respiratory band. The aim of this study was to evaluate whether synchronous variations in systol...