Since that Dr. Hans Berger discovered the electrical nature of the brain, it has been considered the possibility to communicate personswith external devices only through the use of the brain waves (Vidal, 1973). Brain Computer Interface technology is aimed at communicating with persons using external computerised devices via the electroencephalographic signal as the primary command source (Wolp...

The aim of this study was to select and evaluate methods sensitive to reveal small hidden changes in the electroencephalographic (EEG) signal. Two original methods were considered.Multifractal method of scaling analysis of the EEG signal based on the length distribution of low variability periods (LDLVP) was developed and adopted for EEG analysis. The LDLVP method provides a simple route to det...

Introduction. The idiopathic generalized epilepsies of childhood form a heterogeneous group of epileptic syndromes, with certain clinical and electroencephalographic characteristics in common. From the onset, the seizures affect both cerebral hemispheres with generalized clinical expression and from the start there are bilateral electroencephalographic patterns during seizures. These epilepsies...

Background: Neurological complications are a serious concern during extracorporeal membrane oxygenation (ECMO) support in neonates and infants. However, evaluating brain injury during ECMO has limitations. Herein, we report our experience with bedside electroencephalographic monitoring during ECMO support and compared this to post-ECMO brain imaging studies and immediate neurologic outcomes. Me...

Light in the short wavelength range (blue light: 446-483 nm) elicits direct effects on human melatonin secretion, alertness and cognitive performance via non-image-forming photoreceptors. However, the impact of blue-enriched polychromatic light on human sleep architecture and sleep electroencephalographic activity remains fairly unknown. In this study we investigated sleep structure and sleep e...

This paper presents a FIR adaptive filter to cancelling interference due to 50 Hz power line in human electroencephalographic (EEG) inspection. An overview of EEG techniques to study brain activity will be outlined. Then, the problem of spurious signal rejection, in this particular handset, shows the meaningfull application of adaptive filter structure. Poles of filter are driven to find an opt...

BACKGROUND The tuberomammillary histaminergic neurons are involved in the sedative component of anesthetic action. The nucleus basalis magnocellularis (NBM) in the basal forebrain receives dense excitatory innervation from the tuberomammillary nucleus and is recognized as an important site of sleep-wake regulation. This study investigated whether NBM administration of histaminergic drugs may mo...

The locus coeruleus–noradrenergic system exerts an activating influence on forebrain neuronal and behavioral activity states. For example, in the anesthetized rat, unilateral locus coeruleus stimulation elicits bilateral activation of forebrain electroencephalographic activity. Pretreatment with a noradrenergic b-antagonist blocks this effect, suggesting that b-receptors play a critical role in...