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Related Experiment Video

Updated: Jul 1, 2025

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Author Spotlight: Investigating the Impact of Emotional Prosodies on Voice Recognition and Perception

Published on: August 9, 2024

Speech-induced suppression during natural dialogues.

Joaquin E Gonzalez¹, Nicolás Nieto^2,3, Pablo Brusco⁴

¹Laboratorio de Inteligencia Artificial Aplicada, Instituto de Ciencias de la Computación (Universidad de Buenos Aires - Consejo Nacional de Investigaciones Cientificas y Tecnicas), Buenos Aires, Argentina. joaquin.gonzalez6693@gmail.com.

Communications Biology

|March 8, 2024

Summary

This summary is machine-generated.

Speech-induced suppression (SIS) significantly reduces brain responses to one's own speech during natural conversations. This study confirms SIS is stronger in dialogues, impacting auditory processing.

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Area of Science:

Neuroscience
Cognitive Science
Speech Processing

Background:

Auditory processing involves information from both external speech and self-produced speech.
Speech-Induced Suppression (SIS) is a known phenomenon affecting self-monitoring of speech.

Purpose of the Study:

To investigate the brain's representation of acoustic speech properties during natural, unscripted dialogues.
To quantify the effect of Speech-Induced Suppression (SIS) in real-world conversational contexts.

Main Methods:

Utilized electroencephalography (EEG) to record brain activity.
Employed advanced encoding models to analyze high-quality speech recordings from both dialogue participants.
Examined various acoustic features and frequency bands to assess neural responses.

Main Results:

Successfully reproduced previous findings on processing external speech, with improved performance in dialogue scenarios.
Observed a significant lack of neural response to self-produced speech, confirming a strong SIS effect.
Demonstrated that SIS is robust and potentially enhanced during natural conversational interactions.

Conclusions:

Speech-Induced Suppression is a powerful mechanism that significantly modulates auditory processing of self-produced speech in natural dialogues.
The methodology provides a framework for further research into the neural underpinnings of speech perception and production.
Findings contribute to a deeper understanding of how the brain handles auditory feedback during complex communication.