To understand the pathophysiology of anomalous pain in functional gastrointestinal disorders, we must increase our understanding of how the central nervous system processes visceral pain. Over the past decade, novel application of functional brain imaging and electrophysiological techniques has given us the opportunity to study these processes in humans, and this review summarizes the current b...

Non-invasive functional activation of denervated muscles and assessment of muscle function require novel stimulation and measurement techniques. Stimulation equipment must be safe enough for home-based training though the applied electrical parameters raise critical safety issues. Assessment of biomechanical and electrophysiological parameters is provided by oscillation tonometry, twitch and m-...

The aim of this chapter is to discuss current electrophysiological recording techniques used to study the processing of olfactory and gustatory information in insects. More specifically, we will describe methods employed (a) to determine the physiological properties of gustatory (GRCs) and olfactory receptor cells (ORCs) in the peripheral nervous systems and (b) to physiologically characterize ...

Brain–computer interface (BCI) aim at providing a non-muscular channel for sending commands to the external world using the electroencephalographic activity or other Electrophysiological measures of the brain function. An essential factor in the successful operation of BCI systems is the methods used to process the brain signals. In the BCI Literature, comprehensive survey of the signal process...

We have read the article published by Lauschke et al. with a great enthusiasm. In their article, they have reported the electrophysiological study (EPS) results of patients with suspected but not electrocardiogram (ECG) documented. Briefly, supraventricular tachycardia (SVT) has been induced during EPS in 89% of patients with pre-procedural ECG documentation, and 64% of patients with suspected ...

To the Editor: Dr. L. S. Gettes has alerted me of the fact that three figures appearing in our review article devoted to the subject of ventricular tachycardia (Circulation 47: 1364, 1973) appear to be adaptations of figures which he had published earlier (Am J Cardiol 28: 526, 1971). These figures (in our article Nos. 1, 7 and 8) were diagramatic simplifications of certain electrophysiologic c...

INTRODUCTION Short accessory pathway (AP) effective refractory period (ERP) is one of the risk factors in Wolff-Parkinson-White syndrome (WPW). The purpose of study was to evaluate the reproducibility of APERP measurement during a same electrophysiological study (EPS). METHODS EPS consisted of 2 APERP measurements performed prospectively in 77 patients for a WPW in control state (CS) at a cyc...

AIMS This study's aim is to compare the ability of two ECG criteria to differentiate ventricular (VT) from supraventricular tachycardia (SVT): Brugada et al. [horizontal plane (HP) leads] and Vereckei et al. [frontal plane (FP), specifically aVR lead], having electrophysiological study (EPS) as gold standard. After comparing, suggestions for better diagnosis of wide QRS-complex tachycardia (WCT...

INTRODUCTION AND OBJECTIVES Mathematical models of cardiac electrical activity may help to elucidate the electrophysiological mechanisms involved in the genesis of arrhythmias. The most realistic simulations are based on reaction-diffusion models and involve a considerable computational burden. The aim of this study was to develop a computer model of cardiac electrical activity able to simulate...