Although behavioral training could be successful in promoting electroencephalogram (EEG) compliance without restraint or sedation, sleep EEG may increase the yield of seizure activity. Furthermore uncooperative children not amenable to behavioral training require sedation for EEG recording. Our aim was to assess the impact of melatonin on the sleep EEG recording in comparison with chloral hydra...

BACKGROUND Electroencephalography (EEG) is best suited for long-term monitoring of brain functions in patients with disorders of consciousness (DOC). Mathematical tools are needed to facilitate efficient interpretation of long-duration sleep-wake EEG recordings. METHODS Starting with matching pursuit (MP) decomposition, we automatically detect and parametrize sleep spindles, slow wave activit...

Obstructive sleep apnoea was first brought to prominence by Henri Gastaut, a French epileptologist. Since that time the interface between epilepsy and sleep disorders has received less attention than might be justified, recognizing that sleep deprivation is a poignant provocateur for seizures. Sleep deprivation is often used as a diagnostic procedure during electroencephalography (EEG) when wak...

Homeostatically regulated slow-wave oscillations in non-rapid eye movement (REM) sleep may reflect synaptic changes across the sleep-wake continuum and the restorative function of sleep. The nonsynonymous c.22G>A polymorphism (rs73598374) of adenosine deaminase (ADA) reduces the conversion of adenosine to inosine and predicts baseline differences in sleep slow-wave oscillations. We hypothesized...

The article deals with the question, whether nonlinear analysis of the sleep EEG may give clues to understanding of disturbed information processing in psychiatric diseases. We point out how the nonlinear approach to EEG dynamics is motivated and review recent investigations concerning nonlinear dynamical properties of physiological systems. We present calculations of the correlation dimension ...

Transcranial magnetic stimulation (TMS) evolved from a simple method to stimulate the motor cortex to an invaluable tool for multiple diagnostic, research, and therapeutic applications. A further development of this noninvasive brain stimulation technique is concomitant electroencephalographic (EEG) recording during TMS. The theoretical underpinnings and the technological innovation of TMS-EEG ...

The objective of this study was to assess whether treatment with sustained-release bupropion (Wellbutrin-SR) produces alterations in electroencephalographic (EEG) sleep that are associated with clinical response to the drug. EEG sleep was measured in 20 patients with unipolar major depressive disorder before and after treatment with sustained-release bupropion. Each EEG sleep session consisted ...

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...

Electroencephalogram (EEG) recording is essential in the evaluation of complex movement and behaviors during sleep, but particular for differentiating epileptic versus nonepileptic events. In general, epileptiform discharges occur with greater density first few nonerapid eye cycles, approximately 12% to 20% seizures exclusively at night. This review examines epilepsy types syndromes whose prese...

Fourier analysis has shown that human electroencephalography (EEG) signals mainly consist of frequencies below 80 Hz. Waves with a frequency below 13Hz are dominant during sleep. Here we find that the fractal dimensions of sleep EEG results in a frequency range of 2Hz to 13Hz have potential to be used as a continuous parameter to characterize sleep status. Our results show that during sleep, th...