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.
After pairing the unconditioned stimulus with a previously neutral stimulus, the sound of the tone, an association is formed between the UCS and neutral stimulus. Eventually, the previously neutral stimulus begins to evoke the same response, at which point the tone becomes known as the conditioned stimulus. Salivating in response to this conditioned stimulus is an example of a conditioned response. How to Identify the Conditioned Response