Name
Abstract | ||
|---|---|---|
Motion correction algorithms are commonly used to correct for involuntary head motions in fMRI. We found that lid closure increased signal intensity of the eyes by a factor of 1.6 to 2 in EPI-fMRI. If the eyes were included in the scanning volume, transitions from eyes open to eyes closed in darkness were regularly associated with erroneously detected head translations along the z-axis and head rotations around the x-axis in Talairach's coordinate system. These artefacts could be avoided by masking the eyes in the images during the estimation of movement parameters. |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1006/nimg.2002.1140 | NeuroImage |
Keywords | DocType | Volume |
coordinate system | Journal | 16 |
Issue | ISSN | Citations |
4 | 1053-8119 | 2 |
PageRank | References | Authors |
1.05 | 1 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thomas Stephan | 1 | 46 | 5.52 |
| Esther Marx | 2 | 2 | 1.05 |
| Hartmut Brückmann | 3 | 2 | 1.05 |
| Thomas Brandt | 4 | 144 | 16.15 |
| Marianne Dieterich | 5 | 62 | 8.68 |