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Brain activations supporting linking of action phases in a sequential manual task
Umeå University, Faculty of Medicine, Department of Integrative Medical Biology (IMB). Umeå University, Faculty of Medicine, Umeå Centre for Functional Brain Imaging (UFBI).
Umeå University, Faculty of Social Sciences, Department of Psychology. Umeå University, Faculty of Medicine, Umeå Centre for Functional Brain Imaging (UFBI). (CHAMP - Children And Motor Planning)ORCID iD: 0000-0003-0240-3690
2018 (English)In: NeuroImage, ISSN 1053-8119, E-ISSN 1095-9572, ., Vol. 172, p. 608-619Article in journal (Refereed) Published
Abstract [en]

Most everyday manual tasks, like grabbing a cup of coffee to drink, are comprised of a sequence of action phases. Efficient phase transitions, or linking, are achieved using a predictive control policy where motor commands for the next phase are specified and released in anticipation of sensory confirmation of goal completion of the current phase. If there is a discrepancy between predicted and actual sensory feedback about goal completion, corrective actions are employed to complete the current action phase before proceeding to the next. However, we lack understanding about brain activations supporting such predictive linking and corrective actions in manual tasks. In this study, during 3-T MRI-scanning, sixteen participants (5 males, 11 females; mean age 27.3 years, range 23–37) performed a sequential manual task, with or without the possibility for predictive linking. We found that predictive linking of action phases was associated with increased activation in a network that included right-sided fronto-parietal areas related to visuospatial attention, eye movements and motor planning, left-sided parietal areas related to implicit timing and shifts of motor attention, occipital regions bilaterally reflecting visual processing related to the attended next target, and finally, the anterior midcingulate cortex involved in continuous performance monitoring. Corrective actions were associated with increased activation in the left dorsolateral prefrontal cortex involved in reestablishing executive control over previously automatized behavior.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 172, p. 608-619
Keywords [en]
Sensorimotor control, Sequential actions, Motor prediction, Error detection, fMRI
National Category
Medical Biotechnology
Research subject
Biomedical Radiation Science
Identifiers
URN: urn:nbn:se:umu:diva-145639DOI: 10.1016/j.neuroimage.2018.02.014PubMedID: 29428579OAI: oai:DiVA.org:umu-145639DiVA, id: diva2:1189568
Available from: 2018-03-12 Created: 2018-03-12 Last updated: 2018-06-09Bibliographically approved

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Säfström, DanielDomellöf, Erik

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