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Pediatric functional magnetic resonance neuroimaging: Tactics for encouraging task compliance

Schlund, MW and Cataldo, MF and Siegle, GJ and Ladouceur, CD and Silk, JS and Forbes, EE and McFarland, A and Iyengar, S and Dahl, RE and Ryan, ND (2011) Pediatric functional magnetic resonance neuroimaging: Tactics for encouraging task compliance. Behavioral and Brain Functions, 7.

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Background: Neuroimaging technology has afforded advances in our understanding of normal and pathological brain function and development in children and adolescents. However, noncompliance involving the inability to remain in the magnetic resonance imaging (MRI) scanner to complete tasks is one common and significant problem. Task noncompliance is an especially significant problem in pediatric functional magnetic resonance imaging (fMRI) research because increases in noncompliance produces a greater risk that a study sample will not be representative of the study population.Method: In this preliminary investigation, we describe the development and application of an approach for increasing the number of fMRI tasks children complete during neuroimaging. Twenty-eight healthy children ages 9-13 years participated. Generalization of the approach was examined in additional fMRI and event-related potential investigations with children at risk for depression, children with anxiety and children with depression (N = 120). Essential features of the approach include a preference assessment for identifying multiple individualized rewards, increasing reinforcement rates during imaging by pairing tasks with chosen rewards and presenting a visual 'road map' listing tasks, rewards and current progress.Results: Our results showing a higher percentage of fMRI task completion by healthy children provides proof of concept data for the recommended tactics. Additional support was provided by results showing our approach generalized to several additional fMRI and event-related potential investigations and clinical populations.Discussion: We proposed that some forms of task noncompliance may emerge from less than optimal reward protocols. While our findings may not directly support the effectiveness of the multiple reward compliance protocol, increased attention to how rewards are selected and delivered may aid cooperation with completing fMRI tasks. Conclusion: The proposed approach contributes to the pediatric neuroimaging literature by providing a useful way to conceptualize and measure task noncompliance and by providing simple cost effective tactics for improving the effectiveness of common reward-based protocols. © 2011 Schlund et al; licensee BioMed Central Ltd.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Schlund, MW
Cataldo, MF
Siegle, GJgsiegle@pitt.eduGSIEGLE
Ladouceur, CDcdl9@pitt.eduCDL9
Silk, JSjss4@pitt.eduJSS4
Forbes, EEerika@pitt.eduERIKA
McFarland, A
Iyengar, Sssi@pitt.eduSSI
Dahl, RE
Ryan, ND
Date: 6 May 2011
Date Type: Publication
Journal or Publication Title: Behavioral and Brain Functions
Volume: 7
DOI or Unique Handle: 10.1186/1744-9081-7-10
Schools and Programs: Dietrich School of Arts and Sciences > Psychology
Dietrich School of Arts and Sciences > Statistics
School of Medicine > Psychiatry
Refereed: Yes
Date Deposited: 28 Oct 2016 17:42
Last Modified: 02 Feb 2019 15:57


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