Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory
Information on an object’s features bound to its location is very important for maintaining object representations in visual working memory. Interactions with dynamic multi-dimensional objects in an external environment require complex cognitive control, including the selective maintenance of featur...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2014-06-01
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| Series: | Frontiers in Psychology |
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| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.00507/full |
| _version_ | 1818900205269942272 |
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| author | Sachiko eTakahama Jun eSaiki |
| author_facet | Sachiko eTakahama Jun eSaiki |
| author_sort | Sachiko eTakahama |
| collection | DOAJ |
| description | Information on an object’s features bound to its location is very important for maintaining object representations in visual working memory. Interactions with dynamic multi-dimensional objects in an external environment require complex cognitive control, including the selective maintenance of feature-location binding. Here, we used event-related functional magnetic resonance imaging to investigate brain activity and functional connectivity related to the maintenance of complex feature-location binding. Participants were required to detect task-relevant changes in feature-location binding between objects defined by color, orientation, and location. We compared a complex binding task requiring complex feature-location binding (color-orientation-location) with a simple binding task in which simple feature-location binding, such as color-location, was task-relevant and the other feature was task-irrelevant. Univariate analyses showed that the dorsolateral prefrontal cortex (DLPFC), hippocampus, and frontoparietal network were activated during the maintenance of complex feature-location binding. Functional connectivity analyses indicated cooperation between the inferior precentral sulcus (infPreCS), DLPFC, and hippocampus during the maintenance of complex feature-location binding. In contrast, the connectivity for the spatial updating of simple feature-location binding determined by reanalyzing the data from Takahama et al. (2010) demonstrated that the superior parietal lobule (SPL) cooperated with the DLPFC and hippocampus. These results suggest that the connectivity for complex feature-location binding does not simply reflect general memory load and that the DLPFC and hippocampus flexibly modulate the dorsal frontoparietal network, depending on the task requirements, with the infPreCS involved in the maintenance of complex feature-location binding and the SPL involved in the spatial updating of simple feature-location binding. |
| first_indexed | 2024-12-19T20:00:09Z |
| format | Article |
| id | doaj.art-1f892644d242404aba28061b105cd21a |
| institution | Directory Open Access Journal |
| issn | 1664-1078 |
| language | English |
| last_indexed | 2024-12-19T20:00:09Z |
| publishDate | 2014-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Psychology |
| spelling | doaj.art-1f892644d242404aba28061b105cd21a2022-12-21T20:07:41ZengFrontiers Media S.A.Frontiers in Psychology1664-10782014-06-01510.3389/fpsyg.2014.0050786642Functional connectivity supporting the selective maintenance of feature-location binding in visual working memorySachiko eTakahama0Jun eSaiki1Kyoto UniversityKyoto UniversityInformation on an object’s features bound to its location is very important for maintaining object representations in visual working memory. Interactions with dynamic multi-dimensional objects in an external environment require complex cognitive control, including the selective maintenance of feature-location binding. Here, we used event-related functional magnetic resonance imaging to investigate brain activity and functional connectivity related to the maintenance of complex feature-location binding. Participants were required to detect task-relevant changes in feature-location binding between objects defined by color, orientation, and location. We compared a complex binding task requiring complex feature-location binding (color-orientation-location) with a simple binding task in which simple feature-location binding, such as color-location, was task-relevant and the other feature was task-irrelevant. Univariate analyses showed that the dorsolateral prefrontal cortex (DLPFC), hippocampus, and frontoparietal network were activated during the maintenance of complex feature-location binding. Functional connectivity analyses indicated cooperation between the inferior precentral sulcus (infPreCS), DLPFC, and hippocampus during the maintenance of complex feature-location binding. In contrast, the connectivity for the spatial updating of simple feature-location binding determined by reanalyzing the data from Takahama et al. (2010) demonstrated that the superior parietal lobule (SPL) cooperated with the DLPFC and hippocampus. These results suggest that the connectivity for complex feature-location binding does not simply reflect general memory load and that the DLPFC and hippocampus flexibly modulate the dorsal frontoparietal network, depending on the task requirements, with the infPreCS involved in the maintenance of complex feature-location binding and the SPL involved in the spatial updating of simple feature-location binding.http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.00507/fullHippocampusMaintenancedorsolateral prefrontal cortexfunctional connectivityfeature-location binding |
| spellingShingle | Sachiko eTakahama Jun eSaiki Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory Frontiers in Psychology Hippocampus Maintenance dorsolateral prefrontal cortex functional connectivity feature-location binding |
| title | Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory |
| title_full | Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory |
| title_fullStr | Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory |
| title_full_unstemmed | Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory |
| title_short | Functional connectivity supporting the selective maintenance of feature-location binding in visual working memory |
| title_sort | functional connectivity supporting the selective maintenance of feature location binding in visual working memory |
| topic | Hippocampus Maintenance dorsolateral prefrontal cortex functional connectivity feature-location binding |
| url | http://journal.frontiersin.org/Journal/10.3389/fpsyg.2014.00507/full |
| work_keys_str_mv | AT sachikoetakahama functionalconnectivitysupportingtheselectivemaintenanceoffeaturelocationbindinginvisualworkingmemory AT junesaiki functionalconnectivitysupportingtheselectivemaintenanceoffeaturelocationbindinginvisualworkingmemory |