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Head motion suppression using real-time feedback of motion information and its effects on task performance in fMRI.

Abstract：

:A voluntary head motion suppression method using feedback to subjects of their own head motion information is demonstrated. A real-time fMRI system was developed on standard MR imaging hardware for this purpose. The head motion information was simplified as a four-way arrow display that changed color from green to red when a composite head motion index went beyond a specified threshold. The arrow indicators were integrated into a version of the commonly used visual N-BACK task. Results suggest a significant suppression of head motion consistently in all subjects while the influence on task performance and brain activation was minimal. It is proposed that under certain experimental conditions, voluntary head motion suppression may feasibly be employed without significant compromise of fMRI data.

journal_name

Neuroimage

journal_title

NeuroImage

authors

Yang S,Ross TJ,Zhang Y,Stein EA,Yang Y

doi

10.1016/j.neuroimage.2005.02.050

keywords:

subject

Has Abstract

pub_date

2005-08-01 00:00:00

pages

153-62

issue

1

eissn

1053-8119

issn

1095-9572

pii

S1053-8119(05)00138-2

journal_volume

27

pub_type

临床试验,杂志文章

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