In ERP studies of performance on the dichotic listening task,Hillyard and colleagues (1973)found that attended signals are accompanied by a negative-polarity waveform that is relatively large and appears soon after stimulus onset (within 100 milliseconds of stimulus presentation).This waveform is called the auditory ________ potential.
A)N1
B)P3
C)ERF
D)sensory

Question

Quizplus · Accepted Answer

The statement describes the N1 waveform, which is a negative-polarity waveform that occurs within 100 milliseconds of stimulus presentation and is larger for attended signals in the dichotic listening task. The P3 waveform is a positive-polarity waveform that occurs later in time and is associated with processes such as attention and memory consolidation. ERF (event-related field) is a more general term for the brain activity observed in response to a specific event or stimulus. Sensory is a broad term that could refer to any aspect of sensory processing, but it is not specific to the auditory N1 potential described in the statement. Therefore, the best choice is A) N1.

In ERP Studies of Performance on the Dichotic Listening Task,Hillyard