In a Study on Categorical Perception, Listeners Hear Two Sounds

Multiple Choice

In a study on categorical perception, listeners hear two sounds and then a third, and determine if the third sound was the same as the first or the second. Results show that:

A) performance is at chance if the two sounds are from the same phonetic category
B) performance is poor at the outset but listeners improve significantly with practice
C) performance is better if the two sounds are from the same phonetic category than if they are from different phonetic categories
D) all of the above