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Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

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Published on: March 21, 2019

Frequency-specific cortico-subcortical interaction in continuous speaking and listening.

Omid Abbasi¹, Nadine Steingräber¹, Nikos Chalas^1,2

¹Institute for Biomagnetism and Biosignal Analysis, University of Münster, Münster, Germany.

|December 23, 2024

Summary

This study reveals distinct brain connectivity patterns during speech. Findings highlight specific right cerebellum to left temporal connections in low frequencies during speaking, differing from listening conditions.

Keywords:

MEG brain connectivity cerebellum human neuroscience speech perception speech production

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Simultaneous Transcranial Alternating Current Stimulation and Functional Magnetic Resonance Imaging

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Published on: June 5, 2017

Area of Science:

Neuroscience
Cognitive Science
Speech Processing

Background:

Speech production and perception rely on intricate neural dynamics.
Understanding brain connectivity is crucial for deciphering speech mechanisms.

Purpose of the Study:

To investigate cortico-cortical and cortico-subcortical interactions during speech production and perception.
To explore frequency-specific connectivity patterns in the speech network.

Main Methods:

Utilized magnetoencephalography (MEG) to measure brain activity.
Analyzed neural connectivity during speaking and listening tasks.

Main Results:

Identified a significant low-frequency connection from the right cerebellum to left temporal areas during speech production.
Observed an opposite trend in high frequencies for this connection during speaking.
Found high-frequency connectivity absent during speech perception (listening).

Conclusions:

Cortico-cortical and cortico-subcortical connections play vital roles in speech processing.
Distinct frequency-based interactions characterize brain networks involved in speech production versus perception.