Fig. 2. Similarity of CWL and EEG signals before and after CWL-based correction

First Steps to Using Carbon Wire Loops to Correct for Artifacts in simultaneous EEG-fMRI

by Lars Hausfeld, PhD Department of Cognitive Neuroscience, Maastricht University, Maastricht Brain Imaging Centre (M-BIC) The Netherlands Abstract The simultaneous acquisition of EEG and fMRI signals promises linked datasets with high temporal and spatial resolution, respectively. To make optimal use of the data from this advanced acquisition scheme, the attenuation of artifacts in EEG signals…

Figure 1: Single carbon wire loop and set of 5 braided together.

Carbon Wire Loops in EEG-fMRI studies of interictal epileptic activity

by Nicolas von Ellenrieder, PhD, Andreas Koupparis, MD, Natalja Zazubovits and Jean Gotman, PhD Gotman Lab EEG, Imaging, and Epilepsy McGill University, Montréal, QC (Canada) At the Montreal Neurological Institute and Hospital, we work with combined EEG and fMRI acquisition to study epileptic patients to determine the brain region responsible for the generation of seizures…

Figure 2. An example of a head coil with a specific EEG cable tree routing option. The cable tree from the BrainCap MR runs in a straight line directly from the top of the volunteer’s head. In this case, the head coil is the Siemens Head/Neck 64 coil

Changes to the BrainCap MR

by Dr. Tracy Warbrick Application Specialist EEG-fMRI (Brain Products) The BrainCap MR has been the preferred choice for simultaneous EEG-fMRI research for more than a decade, but advances in fMRI technology mean that it needs an update. We have made some changes to the standard BrainCap MR cable lengths to improve the user experience and…

BrainCap MR with Carbon Wire Loops

Coming soon: Carbon Wire Loops for the BrainCap MR

by Dr. Tracy Warbrick Application Specialist EEG-fMRI (Brain Products) Standard MR-related artifact correction methods are sufficient for most applications, however, data susceptible to motion artifact can be more challenging. So, we are very pleased to announce that we will be introducing carbon wire loops (CWLs) for the BrainCap MR to help with handling motion-related artifact.…

Figure 2. Cerebral activations time-locked to sleep spindles and correlation between spindle-related activation and Reasoning abilities. (A) Activations time-locked to sleep spindles during NREM sleep. (B) Spatial correlation maps between activations time-locked to sleep spindles and Reasoning abilities. (C) Overlap between A (red) and B (green), with the conjunction of A and B shown in yellow. Figure credit: Fang, Ray, Owen & Fogel. (2019). Brain activation time-locked to sleep spindles associated with human cognitive abilities. Frontiers in neuroscience, 13. doi: 10.3389/fnins.2019.00046.

Simultaneous EEG-fMRI reveals neural substrates during sleep that support Fluid Intelligence

by Kristen Thompson and Dr. Stuart Fogel School of Psychology University of Ottawa 136 Jean-Jacques Lussier, Vanier Hall, Room 3046 Ottawa, Ontario, Canada K1N 6N5 E-mail address: sfogel[at]uottawa.ca Acknowledgement This user research article summarizes the publication “Brain Activation Time-Locked to Sleep Spindles Associated With Human Cognitive Abilities“. Fang, Z., Ray, L. B., Owen, A. M., &…

New insights in motor imagery from real-time EEG feedback during concurrent fMRI

by Catharina Zich1, Stefan Debener1 & Maarten De Vos1,2 1Neuropsychology Lab, Department of Psychology, European Medical School, University of Oldenburg, Oldenburg, Germany 2Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, UK … Acknowledgment This user research summaries our publication “Zich C, Debener S, Kranczioch C, Bleichner G, Gutberlet I, De Vos M…

Simultaneous EEG–fMRI at ultra-high field: Artifact prevention and safety assessment

by João Jorge1,2 1Laboratory for Functional and Metabolic Imaging, EPFL, Lausanne, Switzerland 2Institute for Systems and Robotics, IST, Lisbon, Portugal Introduction Simultaneous EEG-fMRI acquisitions can offer valuable insights for the non-invasive study of human brain function (Britz et al., 2010; Gotman and Pittau, 2011; Scheeringa et al., 2011). Concurrently, the benefits offered by high-field imaging,…