to evaluate the changes of abr values in hyperbilirubinemic newborns, 85 cases with severe jaundice (total bilirubin levels over 16 mg/dl and direct bilirubin less than 2 mg/dl) were selected from those admitted to children's medical center by simple sampling method. these infants had no other problem except jaundice. abr was taken before treatment in all cases and in some (10 cases) after...

Since its inception by Jewett and Williston in the late 1960s, auditory brainstem response (ABR) has been an indispensable diagnostic tool, used audiologists around world. Click-evoked ABR testing proves to be a reliable as it provides objective representation of function, estimate hearing thresholds ability pinpoint potential issue neural pathway. The present study describes state-of-the-art a...

Low threshold Ca2+ currents mediated by T-type channels underlie burst spike activities of relay neurons in the thalamus. We have previously reported that knock-out mice for T-type channels show an enhanced nociceptive response to visceral pain, accompanied by an increase in tonic spikes in the absence of burst spikes in thalamic relay neurons. These results raised a possibility that T-type cha...

Introduction: An ischemic stroke is a clinical condition that affects thousands of people worldwide. As a result of this injury, neuronal death can be observed, and in the natural course of recovery, the individual may develop sepsis. Sepsis is a systemic inflammatory response that can lead the patient to death. To assess the clinical condition of a patient with this condition, the Auditory Bra...

BACKGROUND Auditory-evoked potentials have proven useful in the objective evaluation of sound encoding at different stages of the auditory pathway (brainstem and cortex). Yet, their utility for use in clinical assessment and empirical research relies critically on the precision and test-retest repeatability of the measure. PURPOSE To determine how subcortical/cortical classes of auditory neur...

OBJECTIVES To investigate the validity of newborn hearing screening protocol using automated auditory brainstem response (AABR) with a confirmation method using click auditory brainstem response (ABR) and to evaluate changes in hearing status of infants with confirmed congenital hearing loss. METHODS Neonates in the well-baby nursery were screened by staged AABR. Subjects whose final AABR res...

www.physicstoday.org An article published in the journal Brain some 40 years ago forever changed the world of hearing assessment.1 Don Jewett and John Williston reported that neural firing recorded from the human scalp with electroencephalogram electrodes could determine whether a sound was heard. The measured electrical impulses originated in the midbrain, a part of the auditory brainstem, and...