Brain activations during bimodal dual tasks depend on the nature and combination of component tasks

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Salo, Emma Rinne, Teemu Salonen, Oili Alho, Kimmo 2017-05-11T08:21:31Z 2017-05-11T08:21:31Z 2015-02-26
dc.identifier.citation Salo , E , Rinne , T , Salonen , O & Alho , K 2015 , ' Brain activations during bimodal dual tasks depend on the nature and combination of component tasks ' FRONTIERS IN HUMAN NEUROSCIENCE , vol 9 , 102 , pp. 1-10 . DOI: 10.3389/fnhum.2015.00102 en
dc.identifier.issn 1662-5161
dc.identifier.other PURE UUID: 6af23f28-d094-42f9-b515-f61253c4a0e6
dc.identifier.other PURE ITEMURL:
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dc.description.abstract We used functional magnetic resonance imaging to investigate brain activations during nine different dual tasks in which the participants were required to simultaneously attend to concurrent streams of spoken syllables and written letters. They performed a phonological, spatial or “simple” (speaker-gender or font-shade) discrimination task within each modality. We expected to find activations associated specifically with dual tasking especially in the frontal and parietal cortices. However, no brain areas showed systematic dual task enhancements common for all dual tasks. Further analysis revealed that dual tasks including component tasks that were according to Baddeley's model “modality atypical,” that is, the auditory spatial task or the visual phonological task, were not associated with enhanced frontal activity. In contrast, for other dual tasks, activity specifically associated with dual tasking was found in the left or bilateral frontal cortices. Enhanced activation in parietal areas, however, appeared not to be specifically associated with dual tasking per se, but rather with intermodal attention switching. We also expected effects of dual tasking in left frontal supramodal phonological processing areas when both component tasks required phonological processing and in right parietal supramodal spatial processing areas when both tasks required spatial processing. However, no such effects were found during these dual tasks compared with their component tasks performed separately. Taken together, the current results indicate that activations during dual tasks depend in a complex manner on specific demands of component tasks. en
dc.format.extent 1-10
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries FRONTIERS IN HUMAN NEUROSCIENCE en
dc.relation.ispartofseries Volume 9 en
dc.rights openAccess en
dc.subject.other Psychiatry and Mental health en
dc.subject.other Neurology en
dc.subject.other Biological Psychiatry en
dc.subject.other Behavioral Neuroscience en
dc.subject.other Neuropsychology and Physiological Psychology en
dc.subject.other 217 Medical engineering en
dc.subject.other 3112 Neurosciences en
dc.subject.other 515 Psychology en
dc.title Brain activations during bimodal dual tasks depend on the nature and combination of component tasks en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department University of Helsinki
dc.contributor.department Helsinki University Central Hospital
dc.contributor.department Swedish Collegium for Advanced Study
dc.contributor.department Department of Neuroscience and Biomedical Engineering en
dc.subject.keyword Divided attention
dc.subject.keyword Dual task
dc.subject.keyword FMRI
dc.subject.keyword Phonological processing
dc.subject.keyword Spatial processing
dc.subject.keyword Psychiatry and Mental health
dc.subject.keyword Neurology
dc.subject.keyword Biological Psychiatry
dc.subject.keyword Behavioral Neuroscience
dc.subject.keyword Neuropsychology and Physiological Psychology
dc.subject.keyword 217 Medical engineering
dc.subject.keyword 3112 Neurosciences
dc.subject.keyword 515 Psychology
dc.identifier.urn URN:NBN:fi:aalto-201705113966
dc.identifier.doi 10.3389/fnhum.2015.00102
dc.type.version publishedVersion

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