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Single-trial analysis of oddball event-related potentials in simultaneous EEG-fMRI.
Hum Brain Mapp 2007; 28(7):602-13HB

Abstract

There has recently been a growing interest in the use of simultaneous electroencephalography (EEG) and functional MRI (fMRI) for evoked activity in cognitive paradigms, thereby obtaining functional datasets with both high spatial and temporal resolution. The simultaneous recording permits obtaining event-related potentials (ERPs) and MR images in the same environment, conditions of stimulation, and subject state; it also enables tracing the joint fluctuations of EEG and fMRI signals. The goal of this study was to investigate the possibility of tracking the trial-to-trial changes in event-related EEG activity, and of using this information as a parameter in fMRI analysis. We used an auditory oddball paradigm and obtained single-trial amplitude and latency features from the EEG acquired during fMRI scanning. The single-trial P300 latency presented significant correlation with parameters external to the EEG (target-to-target interval and reaction time). Moreover, we obtained significant fMRI activations for the modulation by P300 amplitude and latency, both at the single-subject and at the group level. Our results indicate that, in line with other studies, the EEG can bring a new dimension to the field of fMRI analysis by providing fine temporal information on the fluctuations in brain activity.

Authors+Show Affiliations

CNRS IFR131, Centre d'IRMf de Marseille, Marseille, France. Christian.benar@medecine.univ-mrs.frNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17295312

Citation

Bénar, Christian-G, et al. "Single-trial Analysis of Oddball Event-related Potentials in Simultaneous EEG-fMRI." Human Brain Mapping, vol. 28, no. 7, 2007, pp. 602-13.
Bénar CG, Schön D, Grimault S, et al. Single-trial analysis of oddball event-related potentials in simultaneous EEG-fMRI. Hum Brain Mapp. 2007;28(7):602-13.
Bénar, C. G., Schön, D., Grimault, S., Nazarian, B., Burle, B., Roth, M., ... Anton, J. L. (2007). Single-trial analysis of oddball event-related potentials in simultaneous EEG-fMRI. Human Brain Mapping, 28(7), pp. 602-13.
Bénar CG, et al. Single-trial Analysis of Oddball Event-related Potentials in Simultaneous EEG-fMRI. Hum Brain Mapp. 2007;28(7):602-13. PubMed PMID: 17295312.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Single-trial analysis of oddball event-related potentials in simultaneous EEG-fMRI. AU - Bénar,Christian-G, AU - Schön,Daniele, AU - Grimault,Stephan, AU - Nazarian,Bruno, AU - Burle,Boris, AU - Roth,Muriel, AU - Badier,Jean-Michel, AU - Marquis,Patrick, AU - Liegeois-Chauvel,Catherine, AU - Anton,Jean-Luc, PY - 2007/2/14/pubmed PY - 2007/10/3/medline PY - 2007/2/14/entrez SP - 602 EP - 13 JF - Human brain mapping JO - Hum Brain Mapp VL - 28 IS - 7 N2 - There has recently been a growing interest in the use of simultaneous electroencephalography (EEG) and functional MRI (fMRI) for evoked activity in cognitive paradigms, thereby obtaining functional datasets with both high spatial and temporal resolution. The simultaneous recording permits obtaining event-related potentials (ERPs) and MR images in the same environment, conditions of stimulation, and subject state; it also enables tracing the joint fluctuations of EEG and fMRI signals. The goal of this study was to investigate the possibility of tracking the trial-to-trial changes in event-related EEG activity, and of using this information as a parameter in fMRI analysis. We used an auditory oddball paradigm and obtained single-trial amplitude and latency features from the EEG acquired during fMRI scanning. The single-trial P300 latency presented significant correlation with parameters external to the EEG (target-to-target interval and reaction time). Moreover, we obtained significant fMRI activations for the modulation by P300 amplitude and latency, both at the single-subject and at the group level. Our results indicate that, in line with other studies, the EEG can bring a new dimension to the field of fMRI analysis by providing fine temporal information on the fluctuations in brain activity. SN - 1065-9471 UR - https://www.unboundmedicine.com/medline/citation/17295312/Single_trial_analysis_of_oddball_event_related_potentials_in_simultaneous_EEG_fMRI_ L2 - https://doi.org/10.1002/hbm.20289 DB - PRIME DP - Unbound Medicine ER -