Training conquers multitasking costs by dividing task representations in the frontoparietalsubcortical system

Garner, K. G. and Dux, Paul E. (2015) Training conquers multitasking costs by dividing task representations in the frontoparietalsubcortical system. National Academy of Sciences. Proceedings, 112 46: 14372-14377. doi:10.1073/pnas.1511423112


 
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Author Garner, K. G.
Dux, Paul E.
Title Training conquers multitasking costs by dividing task representations in the frontoparietalsubcortical system
Journal name National Academy of Sciences. Proceedings   Check publisher's open access policy
ISSN 1091-6490
0027-8424
Publication date 2015-11-17
Sub-type Article (original research)
DOI 10.1073/pnas.1511423112
Open Access Status Not Open Access
Volume 112
Issue 46
Start page 14372
End page 14377
Total pages 6
Place of publication Washington, DC, United States
Publisher National Academy of Sciences
Collection year 2016
Language eng
Abstract Negotiating the information-rich sensory world often requires the concurrent management of multiple tasks. Despite this requirement, humans are thought to be poor at multitasking because of the processing limitations of frontoparietal and subcortical (FP-SC) brain regions. Although training is known to improve multitasking performance, it is unknown how the FP-SC system functionally changes to support improved multitasking. To address this question, we characterized the FP-SC changes that predict training outcomes using an individual differences approach. Participants (n = 100) performed single and multiple tasks in pre- and posttraining magnetic resonance imaging (fMRI) sessions interspersed by either a multitasking or an active-control training regimen. Multivoxel pattern analyses (MVPA) revealed that training induced multitasking improvements were predicted by divergence in the FP-SC blood oxygen level-dependent (BOLD) response patterns to the trained tasks. Importantly, this finding was only observed for participants who completed training on the component (single) tasks and their combination (multitask) and not for the control group. Therefore, the FP-SC system supports multitasking behavior by segregating constituent task representations.
Keyword Cognitive training
Executive function
Frontoparietal-subcortical
Multitasking
MVPA
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Psychology Publications
 
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