Influence of EEG electrodes on the BOLD fMRI signal
نویسندگان
چکیده
منابع مشابه
Influence of EEG electrodes on the BOLD fMRI signal.
Measurement of the EEG during fMRI scanning can give rise to image distortions due to magnetic susceptibility, eddy currents or chemical shift artifacts caused by certain types of EEG electrodes, cream, leads, or amplifiers. Two different creams were tested using MRS and T2* measurements, and we found that the one with higher water content was superior. This study introduces an index that quant...
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Methods for cleaning the BOLD fMRI signal
Blood oxygen-level-dependent functional magnetic resonance imaging (BOLD fMRI) has rapidly become a popular technique for the investigation of brain function in healthy individuals, patients as well as in animal studies. However, the BOLD signal arises from a complex mixture of neuronal, metabolic and vascular processes, being therefore an indirect measure of neuronal activity, which is further...
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ژورنال
عنوان ژورنال: Human Brain Mapping
سال: 2001
ISSN: 1065-9471,1097-0193
DOI: 10.1002/hbm.1045