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Related Experiment Video

Updated: Jul 3, 2026

Eye Tracking During Visually Situated Language Comprehension: Flexibility and Limitations in Uncovering Visual Context Effects

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Published on: November 30, 2018

Effects of context on auditory stream segregation.

Joel S Snyder¹, Olivia L Carter, Suh-Kyung Lee

¹Department of Psychiatry, Veterans Affairs Boston Healthcare System, Boston, MA, USA. joel.snyder@unlv.edu

Journal of Experimental Psychology. Human Perception and Performance

|July 31, 2008

Summary

Previous auditory experiences influence how we perceive sound streams. Larger frequency differences in prior trials reduce auditory stream segregation in current trials, suggesting sensory memory or adaptation effects.

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Area of Science:

Auditory perception
Psychoacoustics
Cognitive neuroscience

Background:

Auditory stream segregation is the perception of distinct auditory streams from a complex sound.
Preceding auditory context can influence ongoing auditory perception.

Purpose of the Study:

To investigate the impact of preceding context, specifically frequency separation in prior trials, on auditory stream segregation.
To determine the underlying mechanisms of this context effect, exploring sensory memory and neural adaptation.

Main Methods:

Participants listened to an ABA- pattern with varying frequency separations (Delta f) between tones A and B.
Listeners reported whether they perceived one or two auditory streams.
The influence of Delta f from previous trials on current trial perception was analyzed, controlling for response bias.

Main Results:

Auditory stream segregation increased with larger frequency separations (Delta f) within a trial.
Greater Delta f in preceding trials led to reduced auditory stream segregation in the current trial.
This effect persisted even when participants attempted to bias their perception and was not solely due to response bias.

Conclusions:

Preceding auditory context significantly modulates auditory stream segregation.
The findings suggest that auditory sensory memory or neural adaptation mechanisms underlie this context-dependent perception.
The temporal dynamics of the effect indicate rapid adaptation or short-term memory involvement.