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Related Experiment Video

Updated: Jun 13, 2025

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions

Published on: July 16, 2015

Working memory modulates auditory perceptual sensitivity during speech planning.

Yaser Merrikhi, Ayoub Daliri

Biorxiv : the Preprint Server for Biology

|June 12, 2025

Summary

This summary is machine-generated.

Maintaining a vowel in working memory enhances auditory perception during speech planning. This working memory influence on speech systems suggests auditory target representations are shaped during speech production.

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Area of Science:

Cognitive psychology
Speech science
Neuroscience

Background:

Working memory is crucial for speech production.
The precise influence of working memory on speech systems is not fully understood.
Investigating this link can illuminate speech planning mechanisms.

Purpose of the Study:

To examine how maintaining a vowel in working memory affects perceptual sensitivity during speech planning.
To determine if working memory influences speech variability.
To explore the relationship between perceptual sensitivity and speech variability.

Main Methods:

Thirty healthy adults participated in speaking and reading tasks with a concurrent working memory task.
Participants produced or silently read monosyllabic words.
Auditory probe stimuli were presented between /ɛ/ and /æ/ vowels, with trials classified as congruent or incongruent based on the working memory vowel match.

Main Results:

Higher perceptual sensitivity was observed in congruent trials during speaking, indicating a bias in auditory perception.
No significant perceptual sensitivity effect was found in the reading condition.
A trend towards reduced speech variability in congruent trials suggested working memory modulation of speech outcomes.

Conclusions:

Maintaining a vowel in working memory shapes auditory target representations.
Working memory influences and modulates speech outcomes.
This study offers new insights into the role of working memory in speech systems.