Task and task-free FMRI reproducibility comparison for motor network identification
نویسندگان
چکیده
منابع مشابه
Task and task-free FMRI reproducibility comparison for motor network identification.
Test-retest reliability of individual functional magnetic resonance imaging (fMRI) results is of importance in clinical practice and longitudinal experiments. While several studies have investigated reliability of task-induced motor network activation, less is known about the reliability of the task-free motor network. Here, we investigate the reproducibility of task-free fMRI, and compare it t...
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PURPOSE To estimate between-scanner functional MRI (fMRI) reproducibility in a multisite study. MATERIALS AND METHODS A total of five identical 1.5T MR systems were used to repeatedly scan five subjects while performing a finger tapping task. A two-way (scanners, subjects) random effects analysis of variance (ANOVA) was used to estimate between-scanner and between-subject variability on two o...
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The purpose of this study was to evaluate the adequacy of coregistration of movement-related cortical potentials (MRCPs) and functional magnetic resonance imaging (fMRI) data in the primary sensorimotor cortex. Data were acquired in four normal subjects during right and left simple index finger movements. In fMRI (single-slice, 1.5 Tesla, T2*-weighted FLASH sequence), contralateral primary moto...
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Wavelet Analysis of 4d Motor Task Fmri Data
We analyze the use of Haar wavelets in classification and clustering of 4D spatiotemporal fMRI motor data, comparing our results with previous studies that applied wavelets to motor task data as well as other techniques that have been previously applied to the same dataset, including voxelwise spatial k-means clustering and classification by subject based on time series analysis. Subject-based ...
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2012
ISSN: 1065-9471
DOI: 10.1002/hbm.22180