http://www.nitrc.org/forum/forum.php?forum_id=6281 <table border="0" width="100%"><tr><td align="left"/></tr></table> <p><b>Length matters: Improved high field EEG-fMRI recordings using shorter EEG cables.</b></p> <p>J Neurosci Methods. 2016 May 21;</p> <p>Authors: Assecondi S, Lavallee C, Ferrari P, Jovicich J</p> <p>Abstract<br/> BACKGROUND: The use of concurrent EEG-fMRI recordings has increased in recent years, allowing new avenues of medical and cognitive neuroscience research; however, currently used setups present problems with data quality and reproducibility.<br/> NEW METHOD: We propose a compact experimental setup for concurrent EEG-fMRI at 4T and compare it to a more standard reference setup. The compact setup uses short EEG cables connecting to the amplifiers, which are placed right at the back of the head RF coil on a form-fitting extension force-locked to the patient MR bed. We compare the two setups in terms of sensitivity to MR-room environmental noise, interferences between measuring devices (EEG or fMRI), and sensitivity to functional responses in a visual stimulation paradigm.<br/> RESULTS: The compact setup reduces the system sensitivity to both external noise and MR- induced artefacts by at least 60%, with negligible EEG noise induced from the mechanical vibrations of the cryogenic cooling compression pump.<br/> COMPARISON WITH EXISTING METHODS: The compact setup improved EEG data quality and the overall performance of MR-artifact correction techniques. Both setups were similar in terms of the fMRI data, with higher reproducibility for cable placement within the scanner in the compact setup.<br/> CONCLUSIONS: This improved compact setup may be relevant to MR laboratories interested in reducing the sensitivity of their EEG-fMRI experimental setup to external noise sources, setting up an EEG-fMRI workplace for the first time, or for creating a more reproducible configuration of equipment and cables. Implications for safety and ergonomics are discussed.<br/> </p><p>PMID: 27222442 [PubMed - as supplied by publisher]</p> en-us Copyright 2000-2026 NITRC OSI Mon, 04 May 2026 19:50:56 GMT http://blogs.law.harvard.edu/tech/rss NITRC RSS generator