OBJECTIVE The aim of this study was to determine the roles of magnetic resonance imaging (MRI), auditory evoked potentials (AEP) and vestibular evoked myogenic potentials (VEMP) in the evaluation of brainstem involvement in multiple sclerosis (MS). PATIENTS AND METHODS Altogether 32 patients with the diagnosis of MS participated in the study. The following data was collected from all patients...

Brainstem auditory evoked potentials (BAEPs) were recorded in 10 patients who had basilar artery occlusions. Five patients had abnormal BAEPs during the initial recording. Among the remaining patients, three who underwent follow-up study revealed an abnormality within eight days after the onset. An abnormal CT scan preceded the abnormal BAEPs in seven patients. There were five deaths within sev...

Brainstem auditory evoked potentials (BAEPs) were studied in 10 chronic male tobacco smokes (average age 26.55 years) with history of smoking 3 to 14 years to detect early subclinical impairments in auditory pathway. The values of BAEPs were compared with those of 28 age matched normal male non-smokers (control). The results revealed significant prolongation of latencies of wave I and III indic...

Changes in brainstem auditory-evoked potential response were serially investigated in 20 head-injury patients with neurologic and computed tomographic signs of brainstem lesion. The reliability of computed tomography in the evaluation of indirect signs of brainstem lesion from the image was investigated with elaboration of the brainstem auditory-evoked potential response. The measurement of aud...

Historically, Richard Caton (1875) discovered evoked potentials and the electroencephalogram (EEG) at the same time. The evoked potentials provided a useful tool for neurophysiological research (Shagass, 1976). Evoked potentials are the voltage changes generated in the brain, the sense organ and the pathway leading to the brain in response to an external stimulus. This stimulus has to be somewh...

UNLABELLED Brainstem Auditory Evoked Potentials are considered exogenous potentials, that is, the responses obtained are highly dependent upon the characteristic of the stimulus used to evoke them. AIM To investigate the influence of the click stimulus polarity in the study of Brainstem Evoked Response Audiometry (BERA) at different intensities, using insertion-canal earphones. TYPE OF STUD...

Thyroid hormone deficiency is associated with peripheral and central nervous system (CNS) dysfunctions (1-9). CNS manifestations include somnolence, lethargy, mental retardation, memory changes, depression, and rarely convulsions and coma (10). The CNS involvement in overt hypothyroidism has previously been shown on the basis of visual evoked potentials in adult patients (11-13) and of BAEPs an...

CONTEXT Practicing mental repetition of "OM" has been shown to cause significant changes in the middle latency auditory-evoked potentials, which suggests that it facilitates the neural activity at the mesencephalic or diencephalic levels. AIMS The aim of the study was to study the brainstem auditory-evoked potentials (BAEP) in two meditation states based on consciousness, viz. dharana, and dh...