Correspondence of event-related potential tomography and functional magnetic resonance imaging during language processing.

Full Abstract

Combining event-related potentials (ERP) and functional magnetic resonance imaging (fMRI) may provide sufficient temporal and spatial resolution to clarify the functional connectivity of neural processes, provided both methods represent the same neural networks. The current study investigates the statistical correspondence of ERP tomography and fMRI within the common activity volume and time range in a complex visual language task. The results demonstrate that both methods represent similar neural networks within the bilateral occipital gyrus, lingual gyrus, precuneus and middle frontal gyrus, and the left inferior and superior parietal lobe, middle and superior temporal gyrus, cingulate gyrus, superior frontal gyrus and precentral gyrus. The mean correspondence of both methods over subjects was significant. On an individual basis, only half of the subjects showed significantly corresponding activity patterns, suggesting that a one-to-one correspondence between individual fMRI activation patterns and ERP source tomographies integrated over microstates cannot be assumed in all cases.Copyright 2002 Wiley-Liss, Inc.

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Author information

Author/s: Vitacco, Deborah (D); Brandeis, Daniel (D); Pascual-Marqui, Roberto (R); Martin, Ernst (E);

Affiliation: University Children's Hospital Zurich, Department of Magnetic Resonance, Zurich, Switzerland.

Journal and publication information

Publication Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't

Journal: Human brain mapping (Hum Brain Mapp), published in United States. (Language: eng)

Reference: 2002-Sep; vol 17 (issue 1) : pp 4-12

Dates: Created 2002/08/30; Completed 2002/10/17; Revised 2006/11/15;

PMID: 12203683, status: MEDLINE (last retrieval date: 11/6/2008)

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Adult
Brain - anatomy & histology; physiology
Brain Mapping
Cognition
Electroencephalography
Evoked Potentials - physiology
Female
Humans
Image Processing, Computer-Assisted - methods

Language
Magnetic Resonance Imaging
Male
Nerve Net - anatomy & histology; physiology
Photic Stimulation
Reaction Time
Reading
Reference Values
Word Association Tests

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