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Related Experiment Video

Updated: Oct 7, 2025

Involving Individuals with Developmental Language Disorder and Their Parents/Carers in Research Priority Setting

Involving Individuals with Developmental Language Disorder and Their Parents/Carers in Research Priority Setting

Published on: June 6, 2020

A speech planning network for interactive language use.

Gregg A Castellucci^1,2, Christopher K Kovach³, Matthew A Howard³

¹NYU Neuroscience Institute and Department of Otolaryngology, New York University Langone Medical Center, New York, NY, USA.

|January 6, 2022

Summary

This summary is machine-generated.

Researchers identified a specific brain network crucial for rapid speech planning during conversations. This network, involving the inferior frontal cortex, enables seamless turn-taking by preparing responses while listening.

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Area of Science:

Neuroscience
Cognitive Science
Psycholinguistics

Background:

Conversational turn-taking requires rapid responses, with minimal gaps between speakers.
Speech planning occurs during listening, but the underlying neural dynamics are unclear.

Purpose of the Study:

To identify the neural mechanisms enabling rapid speech planning in natural conversation.
To map the brain regions involved in preparing spoken responses during social interaction.

Main Methods:

Intracranial electrocorticography (ECoG) to measure neural activity during interactive tasks.
Comparison of neural activity during speech vs. non-linguistic motor tasks.
Mapping of planning-related circuitry during natural, unconstrained conversation.

Main Results:

A distinct frontotemporal cortical network, including Broca's region, was identified for speech planning.
This network showed heightened activity when preparing speech compared to non-linguistic actions.
The same network was active during natural conversation, preceding participant speech.

Conclusions:

A specific speech planning network is central to natural language generation in social interactions.
This network facilitates rapid turn-taking by enabling proactive response preparation.
The findings advance our understanding of the neural basis of human communication.