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Cross-modal processing of auditory-visual stimuli in a no-task paradigm: a topographic event-related potential study.
Clin Neurophysiol. 2008 Apr; 119(4):763-71.CN

Abstract

OBJECTIVE

The aim of this study was to investigate in healthy adults the electrophysiological correlates of auditory-visual interactions involved in perception of bimodal events in a no-task paradigm.

METHODS

Event-related potentials were recorded in response to unimodal auditory (A), unimodal visual (V) and bimodal (AV) stimuli. Cross-modal interactions were estimated using the additive [AV-(A+V)] model.

RESULTS

The spatio-temporal analysis of ERPs and scalp current densities revealed several interaction patterns occurring at both early and late stages of sensory cortical processing: (1) amplitude decrease of the unimodal auditory N1 wave as early as 55ms, (2) amplitude increase of the unimodal auditory P2 wave from 150 to 195ms concomitant with new neural activity over the right fronto-temporal region, and (3) amplitude increase of the late unimodal visual response within 245-350ms post-stimulus.

CONCLUSIONS

Our study provides evidence that several patterns of cross-modal interactions can be generated even if no task is required from subjects.

SIGNIFICANCE

The paradigm used here can thus be utilized for studying the maturation of the cross-modal processes in young children and in children with pathological development.

Authors+Show Affiliations

INSERM, U930, Tours, France. j.vidal@chu-tours.frNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18289935

Citation

Vidal, J, et al. "Cross-modal Processing of Auditory-visual Stimuli in a No-task Paradigm: a Topographic Event-related Potential Study." Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, vol. 119, no. 4, 2008, pp. 763-71.
Vidal J, Giard MH, Roux S, et al. Cross-modal processing of auditory-visual stimuli in a no-task paradigm: a topographic event-related potential study. Clin Neurophysiol. 2008;119(4):763-71.
Vidal, J., Giard, M. H., Roux, S., Barthélémy, C., & Bruneau, N. (2008). Cross-modal processing of auditory-visual stimuli in a no-task paradigm: a topographic event-related potential study. Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology, 119(4), 763-71. https://doi.org/10.1016/j.clinph.2007.11.178
Vidal J, et al. Cross-modal Processing of Auditory-visual Stimuli in a No-task Paradigm: a Topographic Event-related Potential Study. Clin Neurophysiol. 2008;119(4):763-71. PubMed PMID: 18289935.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cross-modal processing of auditory-visual stimuli in a no-task paradigm: a topographic event-related potential study. AU - Vidal,J, AU - Giard,M-H, AU - Roux,S, AU - Barthélémy,C, AU - Bruneau,N, Y1 - 2008/03/04/ PY - 2007/05/24/received PY - 2007/10/22/revised PY - 2007/11/23/accepted PY - 2008/2/22/pubmed PY - 2008/6/5/medline PY - 2008/2/22/entrez SP - 763 EP - 71 JF - Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology JO - Clin Neurophysiol VL - 119 IS - 4 N2 - OBJECTIVE: The aim of this study was to investigate in healthy adults the electrophysiological correlates of auditory-visual interactions involved in perception of bimodal events in a no-task paradigm. METHODS: Event-related potentials were recorded in response to unimodal auditory (A), unimodal visual (V) and bimodal (AV) stimuli. Cross-modal interactions were estimated using the additive [AV-(A+V)] model. RESULTS: The spatio-temporal analysis of ERPs and scalp current densities revealed several interaction patterns occurring at both early and late stages of sensory cortical processing: (1) amplitude decrease of the unimodal auditory N1 wave as early as 55ms, (2) amplitude increase of the unimodal auditory P2 wave from 150 to 195ms concomitant with new neural activity over the right fronto-temporal region, and (3) amplitude increase of the late unimodal visual response within 245-350ms post-stimulus. CONCLUSIONS: Our study provides evidence that several patterns of cross-modal interactions can be generated even if no task is required from subjects. SIGNIFICANCE: The paradigm used here can thus be utilized for studying the maturation of the cross-modal processes in young children and in children with pathological development. SN - 1388-2457 UR - https://www.unboundmedicine.com/medline/citation/18289935/Cross_modal_processing_of_auditory_visual_stimuli_in_a_no_task_paradigm:_a_topographic_event_related_potential_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1388-2457(07)00733-X DB - PRIME DP - Unbound Medicine ER -