Investigation of higher-order cognitive functions during exposure to a high static magnetic field
| Autor: | Jöran Lepsien, Karsten Müller, Harald E. Möller, D. Yves von Cramon |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male Physics medicine.diagnostic_test Brain Dose-Response Relationship Radiation Magnetic resonance imaging Cognition Radiation Dosage Magnetostatics Magnetic Resonance Imaging Magnetic field Young Adult Magnetic Fields Nuclear magnetic resonance Magnet Task Performance and Analysis Multiple comparisons problem medicine Humans Female Radiology Nuclear Medicine and imaging Statistical analysis Effects of sleep deprivation on cognitive performance |
| Zdroj: | Journal of Magnetic Resonance Imaging. 36:835-840 |
| ISSN: | 1053-1807 |
| DOI: | 10.1002/jmri.23727 |
| Popis: | To test for potential changes in higher-order cognitive processes related to the exposure to a high static magnetic field.Twenty-four healthy volunteers participated in two experimental sessions inside a 3 Tesla (T) magnetic resonance imaging (MRI) magnet. During one session the magnetic field was ramped down. The tasks consisted of six well-established paradigms probing a variety of cognitive functions. Reaction times (RT) and accuracies (AC) were recorded for statistical analysis.The overall performance was very similar in both sessions. Strong task-specific effects (all P0.006) were consistent with previously published results. Direct comparisons of task-specific effects between the two sessions (magnetic field on or off) remained insignificance for all paradigms (RT: all P0.196; AC: all P0.17; no corrections for multiple comparisons).The results did not indicate any apparent safety concerns with respect to cognitive performance in a static magnetic field of a typical whole-body magnet. In addition, comparisons of cognitive effects from testing situations with and without exposure to high static magnetic fields can be considered valid. |
| Databáze: | OpenAIRE |
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