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Related Experiment Video

Updated: Jun 27, 2026

Functional Mapping with Simultaneous MEG and EEG

Functional Mapping with Simultaneous MEG and EEG

Published on: June 14, 2010

Mapping the basal temporal language network: a SEEG functional connectivity study.

Olivier Aron¹, Insafe Mezjan², Julien Krieg³

¹Lorraine University, CHRU Nancy, Neurology Department, Nancy, France; Lorraine University, CNRS, IMoPA, F-54000, Nancy, France.

Brain and Language

|October 10, 2024

Summary

This summary is machine-generated.

This study reveals a basal temporal language network (BTLN) in epilepsy patients, highlighting the fusiform gyrus as a key integration hub. This network connects crucial language areas with memory structures like the amygdala and hippocampus.

Keywords:

Basal Temporal Language Area (BTLA)Cortico-Cortical Evoked Potentials (CCEP)Epilepsy Surgery Functional connectivity Fusiform Gyrus Ventral Temporal Cortex (VTC)

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Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

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Last Updated: Jun 27, 2026

Functional Mapping with Simultaneous MEG and EEG

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Published on: June 14, 2010

Mapping Cortical Dynamics Using Simultaneous MEG/EEG and Anatomically-constrained Minimum-norm Estimates: an Auditory Attention Example

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Published on: October 24, 2012

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Published on: August 5, 2014

Area of Science:

Neuroscience
Cognitive Neurology
Epileptology

Background:

The Basal Temporal Language Area (BTLA) is identified during epilepsy surgery via cortical electrical stimulation (CES) eliciting naming deficits.
Existing cognitive language models inadequately incorporate the BTLA and the ventral language stream.
Understanding the effective connectivity of the ventral temporal cortex (VTC) is crucial for refining language models and surgical planning.

Purpose of the Study:

To investigate the effective connectivity of the left VTC using SEEG in epileptic patients.
To compare the connectivity of language-eloquent sites (BTLA) with non-eloquent sites.
To elucidate the network structure of the basal temporal language network (BTLN).

Main Methods:

Stereoelectroencephalography (SEEG) was employed in nine epilepsy patients.
Cortico-cortical evoked potentials were used to assess effective connectivity of 73 VTC sites.
26 VTC sites were identified as eloquent for naming (BTLA) based on CES.

Main Results:

Eloquent BTLA sites demonstrated connectivity supporting a BTLN, with posterior projectors and the fusiform gyrus acting as an integrator.
The BTLN showed strong connectivity with the amygdala and hippocampus.
Non-eloquent VTC sites, except the anterior fusiform gyrus, exhibited weaker connectivity to these memory structures.

Conclusions:

The findings support the existence of a distinct basal temporal language network.
The fusiform gyrus functions as a multimodal hub integrating language processing.
This study enhances the understanding of ventral temporal language processing and its network interactions.