Quantitative Analyses Help in Choosing Between Simultaneous vs. Separate EEG and fMRI.

ABSTRACT: Simultaneous registration of scalp electroencephalography (EEG) and functional magnetic resonance imaging (fMRI) is considered an attractive approach for studying brain function non-invasively. It combines the better spatial resolution of fMRI with the better temporal resolution of EEG, but comes at the cost of increased measurement artifact and the accompanying artifact preprocessing. This paper presents a study of the residual signal quality based on temporal signal to noise ratio (TSNR) for fMRI and fast Fourier transform (FFT) for EEG, after optimized conventional signal preprocessing. Measurements outside the magnetic resonance imaging scanner and inside the scanner prior to and during image acquisition were compared. For EEG, frequency and region dependent significant effects on FFT

SUBMITTER: Schrooten M 

PROVIDER: S-EPMC6335318 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature