Brain activity during divided and selective attention to auditory and visual sentence comprehension tasks
| Autor: | Mona eMoisala, Viljami eSalmela, Emma eSalo, Synnöve eCarlson, Virve eVuontela, Oili eSalonen, Kimmo eAlho |
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| Přispěvatelé: | Teacher Education, Behavioural Sciences, Department of Physiology, Department of Diagnostics and Therapeutics, Helsinki Collegium for Advanced Studies, Perception Action Cognition, Attention and Memory Networks Research Group, Department of Neuroscience and Biomedical Engineering, Aalto-yliopisto, Aalto University |
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
EVENT-RELATED FMRI
515 Psychology Brain activity and meditation DORSOLATERAL PREFRONTAL CORTEX education selective attention divided attention Sensory system semantic processing behavioral disciplines and activities 050105 experimental psychology lcsh:RC321-571 03 medical and health sciences Behavioral Neuroscience dual-tasking POSITRON-EMISSION-TOMOGRAPHY 0302 clinical medicine SEMANTIC PROCESSES medicine Semantic memory 0501 psychology and cognitive sciences Original Research Article lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry Biological Psychiatry VERBAL WORKING-MEMORY medicine.diagnostic_test Crossmodal EXECUTIVE FUNCTIONS 05 social sciences CORTICAL NETWORK 3112 Neurosciences FRONTAL-CORTEX Executive functions FUNCTIONAL NEUROANATOMY Dorsolateral prefrontal cortex Psychiatry and Mental health Neuropsychology and Physiological Psychology medicine.anatomical_structure CONCURRENT PERFORMANCE Neurology functional MRI Functional magnetic resonance imaging Psychology Neuroscience 030217 neurology & neurosurgery Sentence psychological phenomena and processes |
| Zdroj: | Frontiers in Human Neuroscience Frontiers in Human Neuroscience, Vol 9 (2015) |
| ISSN: | 1662-5161 |
| DOI: | 10.3389/fnhum.2015.00086 |
| Popis: | Using functional magnetic resonance imaging (fMRI), we measured brain activity of human participants while they performed a sentence congruence judgment task in either the visual or auditory modality separately, or in both modalities simultaneously. Significant performance decrements were observed when attention was divided between the two modalities compared with when one modality was selectively attended. Compared with selective attention (i.e., single tasking), divided attention (i.e., dual-tasking) did not recruit additional cortical regions, but resulted in increased activity in medial and lateral frontal regions which were also activated by the component tasks when performed separately. Areas involved in semantic language processing were revealed predominantly in the left lateral prefrontal cortex by contrasting incongruent with congruent sentences. These areas also showed significant activity increases during divided attention in relation to selective attention. In the sensory cortices, no crossmodal inhibition was observed during divided attention when compared with selective attention to one modality. Our results suggest that the observed performance decrements during dual-tasking are due to interference of the two tasks because they utilize the same part of the cortex. Moreover, semantic dual-tasking did not appear to recruit additional brain areas in comparison with single tasking, and no crossmodal inhibition was observed during intermodal divided attention. |
| Databáze: | OpenAIRE |
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