What is auditory stream segregation?

Auditory stream segregation is a perceptual process by which the human auditory system groups sounds from different sources into perceptually meaningful elements (e.g., a voice or a melody).

1. What contributes to auditory stream segregation?
2. What is auditory stream segregation and what cues does the brain use to achieve it?
3. What are auditory streams?
4. What is sequential grouping?

What contributes to auditory stream segregation?

The tendency towards segregation into separate streams is favored by differences in the acoustical properties of sounds A and B. Among the differences classically shown to promote segregation are those of frequency (for pure tones), fundamental frequency (for complex tones), frequency composition, source location.

What is auditory stream segregation and what cues does the brain use to achieve it?

The brain stem shows neural evidence of stream segregation based on simple cues such as frequencies of tones, but segregation based on more sophisticated perceptual properties of sounds is more likely to take place in the cortex.

What are auditory streams?

The process of stream formation is loosely named “auditory streaming”. Auditory streaming is believed to be a manifestation of human ability to analyze an auditory scene, i.e. to attribute portions of the incoming sound sequence to distinct sound generating entities.

What is sequential grouping?

A group sequential design is a type of adaptive design where the number of patients isn't set in advance. Patients are divided into an equal number of groups and data is analyzed at pre-determined points in the trial.