If the pitch separation between tones increases, at some point we would perceive:
A) the fusion of two distinct streams into a single stream
B) no discernible change
C) a change in timing
D) the fission of a single stream into two distinct streams

Question

Quizplus · Accepted Answer

As the pitch separation between tones increases, our auditory system is more likely to perceive them as belonging to two separate sources or streams, a phenomenon known as auditory stream segregation or the fission effect. This is because larger pitch differences make it harder for the brain to integrate the sounds into a single coherent stream.

If the Pitch Separation Between Tones Increases, at Some Point