10:50AM BST 09 Jun 2014. â¢ DONALD DUCK was created by Walt Disney when he heard Clarence Nash doing his duck voice while reciting Mary Had a Little Lamb. Disney wanted a character that was more negative than Mickey Mouse, so the bad-tempered Duck was born.
Auditory brainstem response (ABR) audiometry is a neurologic test of auditory brainstem function in response to auditory (click) stimuli. First described by Jewett and Williston in 1971, ABR audiometry is the most common application of auditory evoked responses. Test administration and interpretation is typically performed by an audiologist. This article provides an overview of the test and its most common applications.
Three types of evoked potential testing have been used in the past to help confirm a diagnosis of MS: 1  Visual Evoked Potentials (VEP): The patient sits before a screen on which an alternating checkerboard pattern is displayed. 2  Brainstem Auditory Evoked Potentials (BAEP): The patient hears a series of clicks in each ear.