Planning ahead: predictable switching recruits task-active and resting-state networks
Author(s)
Kurtin, Danielle L
Arana-Oiarbide, Garazi
Lorenz, Romy
Violante, Ines R
Hampshire, Adam
Type
Journal Article
Abstract
Switching is a difficult cognitive process characterised by costs in task performance; specifically, slowed responses and reduced accuracy. It is associated with the recruitment of a large coalition of task-positive regions including those referred to as the multiple demand cortex (MDC). The neural correlates of switching not only include the MDC, but occasionally the default mode network (DMN), a characteristically task-negative network. To unpick the role of the DMN during switching we collected fMRI data from 24 participants playing a switching paradigm that perturbed predictability (i.e., cognitive load) across three switch dimensions—sequential, perceptual, and spatial predictability. We computed the activity maps unique to switch vs. stay trials and all switch dimensions, then evaluated functional connectivity under these switch conditions by computing the pairwise mutual information functional connectivity (miFC) between regional timeseries. Switch trials exhibited an expected cost in reaction time while sequential predictability produced a significant benefit to task accuracy. Our results showed that switch trials recruited a broader activity map than stay trials, including regions of the DMN, the MDC, and task-positive networks such as visual, somatomotor, dorsal, salience/ventral attention networks. More sequentially predictable trials recruited increased activity in the somatomotor and salience/ventral attention networks. Notably, changes in sequential and perceptual predictability, but not spatial predictability, had significant effects on miFC. Increases in perceptual predictability related to decreased miFC between control, visual, somatomotor, and DMN regions, whereas increases in sequential predictability increased miFC between regions in the same networks, as well as regions within ventral attention/ salience, dorsal attention, limbic, and temporal parietal networks. These results provide novel clues as to how DMN may contribute to executive task performance. Specifically, the improved task performance, unique activity, and increased miFC associated with increased sequential predictability suggest that the DMN may coordinate more strongly with the MDC to generate a temporal schema of upcoming task events, which may attenuate switching costs.
Date Issued
2023-10-15
Date Acceptance
2023-07-05
Citation
Human Brain Mapping, 2023, 44 (15), pp.5030-5046
ISSN
1065-9471
Publisher
Wiley
Start Page
5030
End Page
5046
Journal / Book Title
Human Brain Mapping
Volume
44
Issue
15
Copyright Statement
© 2023 The Authors. Human Brain Mapping published by Wiley Periodicals LLC. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
License URL
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:001029584200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
BRAIN-FUNCTION
COGNITIVE CONTROL
CORTEX
DEFAULT MODE
default mode network
FEATURE-SELECTION
fMRI
FMRI
functional connectivity
FUNCTIONAL CONNECTIVITY
Life Sciences & Biomedicine
multiple demand network
mutual information
MUTUAL INFORMATION
Neuroimaging
Neurosciences
Neurosciences & Neurology
Radiology, Nuclear Medicine & Medical Imaging
ROBUST
Science & Technology
switching
temporal predictability
WORKING-MEMORY
Publication Status
Published
Coverage Spatial
United States
Date Publish Online
2023-09-15