کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6034818 | 1188758 | 2010 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-site characterization of an fMRI working memory paradigm: Reliability of activation indices
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب شناختی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Neuroimaging studies are facilitated significantly when it is possible to recruit subjects and acquire data at multiple sites. However, the use of different scanners and acquisition protocols is a potential source of variability in multi-site data. In this work we present a multi-site study of the reliability of fMRI activation indices, where 10 healthy volunteers were scanned at 4 different sites while performing a working memory paradigm. Our results indicate that, even with different scanner manufacturers and field strengths, activation variability due to site differences is small compared to variability due to subject differences in this cognitive task, provided we choose an appropriate activation measure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NeuroImage - Volume 53, Issue 1, 15 October 2010, Pages 119-131
Journal: NeuroImage - Volume 53, Issue 1, 15 October 2010, Pages 119-131
نویسندگان
Anastasia Yendiki, Douglas N. Greve, Stuart Wallace, Mark Vangel, Jeremy Bockholt, Bryon A. Mueller, Vince Magnotta, Nancy Andreasen, Dara S. Manoach, Randy L. Gollub,