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. 2007 May 15;155(1):75-82.
doi: 10.1016/j.pscychresns.2006.12.009. Epub 2007 Mar 28.

Assessment and prevention of head motion during imaging of patients with attention deficit hyperactivity disorder

Jeffery N Epstein  1 , B J Casey, Simon T Tonev, Matthew Davidson, Allan L Reiss, Amy Garrett, Stephen P Hinshaw, Laurence L Greenhill, Alan Vitolo, Lisa A Kotler, Matthew A Jarrett, Julie Spicer
Affiliations

Assessment and prevention of head motion during imaging of patients with attention deficit hyperactivity disorder

Jeffery N Epstein et al. Psychiatry Res. .

Abstract

The present study serves to detail the specific procedures for a mock scanner protocol, report on its use in the context of a multi-site study, and make suggestions for improving such protocols based on data acquired during study scanning. Specifically, a mock scanner compliance training protocol was used in a functional imaging study with a group of adolescents and adults with Attention Deficit Hyperactivity Disorder (ADHD) and a matched sample of healthy children and adults. Head motion was measured during mock and actual scanning. Participants across groups exhibited excess motion (>2 mm) on 43% of runs during the mock scanner. During actual scanning, excessive motion was limited to 10% of runs. There was a clear task-correlated head motion during a go/no-go task that occurred even after the compliance training: participants had a tendency to respond with increased head motion immediately after committing an error. This study illustrates the need to (1) report data attrition due to head motion, (2) assess task-related motion, and (3) consider mock scanner training in functional imaging protocols.

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Figures

Figure 1
Figure 1
Graphical depiction of head motion occurring after the presentation of a no-go stimulus (time t) and an error response. Parents and children, irregardless of ADHD status, seem to demonstrate increased head motion immediately after making an error.
See this image and copyright information in PMC

References

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