Eleven preterm infants (gestational ages 27-35 weeks) with echogenic paraventricular white matter identified shortly after birth were studied with serial echoencephalograms to fully delineate the sonographic findings characterizing the pathologic stages of white-matter necrosis. Echoencephalograms were compared with autopsy findings and CT scans. Cerebral function was assessed by electroencepha...

A Brain Computer Interface (BCI) creates a new communication channels for disabled peoples, the classical way of steady-state visual evoked potential (SSVEP) based on (BCI) was focusing on multi-frequency and phases. In this study a novel high-speed SSVEP based on BCI, was implemented a new paradigms of SSVEP, which induced by irregular flickering with phase-tagged toward brain activity respons...

The assessment of different sleep stages and their disorders in diseases is an important part of telematic medicine. With an electroencephalogram, the different stages of sleep can be monitored and classified with respect to brain activity. By means of modern data management such as the patient monitor ixTrend, for example, the data can be recorded for long sleep phases and evaluated by a compu...

The aim of this study was to ascertain the acceptability of sleep-deprived EEGs to parents and their young child. Fifty unselected children having a sleep-deprived EEG were recruited. Data were collected from a sleep diary, a parent questionnaire and the request form of the EEG. Data collected covered developmental, learning and behavioural problems and the acceptability of the sleep-deprived E...

We present a hypnogram generator fully written in Matlab/Octave programming languages. Our software extracts data from brainwaves during sleep and then classifies wave stretches according to their predominant frequency. Differently from other programs, which rely on heavily numerical data analyses, our approach is the plain shape analysis of the waves. For this purpose we focus on properties of...

We tested low-dimensional determinism in an electroencephalogram (EEG), based on the fact that smoothness (continuity) on an embedded phase space is enough to imply determinism within time series. A modified version of the method developed by Salvino and Cawley [Phys. Rev. Lett. 73, 1091 (1994)] was used. In our method, we chose a box randomly and then estimated the mean directional element in ...

OBJECTIVE Sleep is a known activator of epileptiform discharges on electroencephalography. Chloral hydrate is used frequently for electroencephalography sedation. Our objectives were to study the value and limitations of chloral hydrate. METHODS One hundred and fifty nine consecutive pediatric electroencephalograms were included prospectively. One electroencephalography technologist collected...

Autism is associated with epilepsy in early childhood, with evidence suggesting that individuals with both autism and more severe cognitive impairment are at higher risk. However, the incidence of an abnormal electroencephalogram and/or epilepsy in the full range of pervasive developmental disorders (PDDs) is not well defined. This naturalistic study addresses the incidence of epilepsy and elec...