UNLABELLED Long Latency Auditory Evoked Potentials (LLAEP) represents a number of electrical changes occurring in the central nervous system, resulting from stimulation of the auditory sensorial pathways. Many studies approach the use of these potentials controlling the artifact created by eye movement with the use of equipment with a large number of channels. However, what happens is very diff...

The lateral distribution of the P300 component of the event-related brain potential (ERP) was studied in five epileptic patients whose corpus callosum had been surgically sectioned and in seven neurologically intact controls. The P300 was elicited in an auditory "oddball" task using high- and low-pitched tones and in a visual oddball task in which target words were presented either to the left ...

Although emotionally salient stimuli influence higher order information processing, the relative vulnerability of specific stages of cognitive processing to modulation by emotional input remains elusive. To test the temporal dynamics of emotional interference during executive function, we recorded event-related potentials (ERPs) while participants performed an effortful anticipation task with a...

Electromyographic studies in five patients suffering from central core disease are presented. A variable amount of late components of motor unit potentials were found in all of them, as others have found in Duchenne muscular dystrophy. This suggests the existence of collateral innervation of the resultant fragments of the muscular fibre splitting present in this disorder.

POTENTIALS U. Hoppe, U. Eysholdt Abteilung f ur Phoniatrie und P adaudiologie Universit ats{HNO{Klinik Friedrich{Alexander Universit at Erlangen, Germany S. Wei Signal Processing Division Dept. of Electronic and Electrical Eng. University of Strathclyde Glasgow, Scotland Abstract.{ This work presents a novel mechanism for detection of late auditory evoked potentials (AEP). AEPs, which are a...

Brain potentials associated with true and false recognition were recorded using a paradigm consisting of categorized color photographs. Two ERP components were identified. A parietal component was most positive for both true and false recognition, less positive for rejection of lures, and least positive for rejection of novel items. A later frontal component was more positive for false recognit...

UNLABELLED Long latency auditory evoked potentials (LLAEP) alterations in individuals with tinnitus are suggestive of dysfunction in the central auditory pathways at a cortical level. AIM To characterize the LLAEP in individuals with and without tinnitus exposed to occupational noise. METHOD Cross-sectional contemporary cohort, prospective study. Sixty subjects exposed to occupational noise...

or intraoperative endocardial and epicardial mapping"' or indirectly from the body surface by "high-resolution electrocardiography"'7 after myocardial infarction in patients with sustained ventricular tachycardia. These potentials originate from asynchronous electrical activity in bundles of surviving muscle, mostly at the border of a myocardial infarction. These surviving muscle bundles are se...

The report by Tobe et al. (1) in this issue of the Journal about late potentials in patients with familial long QT syndrome offers a suggestion that the signal-averaged electrocardiogram (ECG) may be a useful diagnostic tool in the detection and risk stratification of patients with QT prolongation. The association between long QT syndrome and late potentials, a marker of structural substrate fo...