Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.

Cognitive task demands in one sensory modality (T1) can have beneficial effects on a secondary task (T2) in a different modality, due to reduced top-down control needed to inhibit the secondary task, as well as crossmodal spread of attention. This contrasts findings of cognitive load compromising a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Christina Regenbogen, Maarten De Vos, Stefan Debener, Bruce I Turetsky, Carolin Mössnang, Andreas Finkelmeyer, Ute Habel, Irene Neuner, Thilo Kellermann
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b133c21ad3f545d5a0d493fbdd17a5c4
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:b133c21ad3f545d5a0d493fbdd17a5c4
record_format	dspace
spelling	oai:doaj.org-article:b133c21ad3f545d5a0d493fbdd17a5c42021-11-18T08:05:00ZAuditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.1932-620310.1371/journal.pone.0052267https://doaj.org/article/b133c21ad3f545d5a0d493fbdd17a5c42012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23251704/?tool=EBIhttps://doaj.org/toc/1932-6203Cognitive task demands in one sensory modality (T1) can have beneficial effects on a secondary task (T2) in a different modality, due to reduced top-down control needed to inhibit the secondary task, as well as crossmodal spread of attention. This contrasts findings of cognitive load compromising a secondary modality's processing. We manipulated cognitive load within one modality (visual) and studied the consequences of cognitive demands on secondary (auditory) processing. 15 healthy participants underwent a simultaneous EEG-fMRI experiment. Data from 8 participants were obtained outside the scanner for validation purposes. The primary task (T1) was to respond to a visual working memory (WM) task with four conditions, while the secondary task (T2) consisted of an auditory oddball stream, which participants were asked to ignore. The fMRI results revealed fronto-parietal WM network activations in response to T1 task manipulation. This was accompanied by significantly higher reaction times and lower hit rates with increasing task difficulty which confirmed successful manipulation of WM load. Amplitudes of auditory evoked potentials, representing fundamental auditory processing showed a continuous augmentation which demonstrated a systematic relation to cross-modal cognitive load. With increasing WM load, primary auditory cortices were increasingly deactivated while psychophysiological interaction results suggested the emergence of auditory cortices connectivity with visual WM regions. These results suggest differential effects of crossmodal attention on fundamental auditory processing. We suggest a continuous allocation of resources to brain regions processing primary tasks when challenging the central executive under high cognitive load.Christina RegenbogenMaarten De VosStefan DebenerBruce I TuretskyCarolin MössnangAndreas FinkelmeyerUte HabelIrene NeunerThilo KellermannPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 12, p e52267 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Christina Regenbogen Maarten De Vos Stefan Debener Bruce I Turetsky Carolin Mössnang Andreas Finkelmeyer Ute Habel Irene Neuner Thilo Kellermann Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.
description	Cognitive task demands in one sensory modality (T1) can have beneficial effects on a secondary task (T2) in a different modality, due to reduced top-down control needed to inhibit the secondary task, as well as crossmodal spread of attention. This contrasts findings of cognitive load compromising a secondary modality's processing. We manipulated cognitive load within one modality (visual) and studied the consequences of cognitive demands on secondary (auditory) processing. 15 healthy participants underwent a simultaneous EEG-fMRI experiment. Data from 8 participants were obtained outside the scanner for validation purposes. The primary task (T1) was to respond to a visual working memory (WM) task with four conditions, while the secondary task (T2) consisted of an auditory oddball stream, which participants were asked to ignore. The fMRI results revealed fronto-parietal WM network activations in response to T1 task manipulation. This was accompanied by significantly higher reaction times and lower hit rates with increasing task difficulty which confirmed successful manipulation of WM load. Amplitudes of auditory evoked potentials, representing fundamental auditory processing showed a continuous augmentation which demonstrated a systematic relation to cross-modal cognitive load. With increasing WM load, primary auditory cortices were increasingly deactivated while psychophysiological interaction results suggested the emergence of auditory cortices connectivity with visual WM regions. These results suggest differential effects of crossmodal attention on fundamental auditory processing. We suggest a continuous allocation of resources to brain regions processing primary tasks when challenging the central executive under high cognitive load.
format	article
author	Christina Regenbogen Maarten De Vos Stefan Debener Bruce I Turetsky Carolin Mössnang Andreas Finkelmeyer Ute Habel Irene Neuner Thilo Kellermann
author_facet	Christina Regenbogen Maarten De Vos Stefan Debener Bruce I Turetsky Carolin Mössnang Andreas Finkelmeyer Ute Habel Irene Neuner Thilo Kellermann
author_sort	Christina Regenbogen
title	Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.
title_short	Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.
title_full	Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.
title_fullStr	Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.
title_full_unstemmed	Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.
title_sort	auditory processing under cross-modal visual load investigated with simultaneous eeg-fmri.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/b133c21ad3f545d5a0d493fbdd17a5c4
work_keys_str_mv	AT christinaregenbogen auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT maartendevos auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT stefandebener auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT bruceituretsky auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT carolinmossnang auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT andreasfinkelmeyer auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT utehabel auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT ireneneuner auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri AT thilokellermann auditoryprocessingundercrossmodalvisualloadinvestigatedwithsimultaneouseegfmri
_version_	1718422251364155392

Auditory processing under cross-modal visual load investigated with simultaneous EEG-fMRI.

Ejemplares similares