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A Review of Passive Brain Mapping Techniques in Neurological Surgery

Jarod L Roland, Carl D Hacker, Eric C Leuthardt
2020 Neurosurgery  
More recently, a wide variety of techniques have been developed that do not require electrical stimulation and often do not require any explicit participation by the subject.  ...  Traditionally mapping was invasive and involved the application of electrical current to the exposed brain to observe focal disruption of function or to elicit overt actions.  ...  Advances in computer processing hardware as well as algorithm development have led to effective real-time analysis that provides immediate results with shorter amounts of time required of the patient for  ... 
doi:10.1093/neuros/nyaa361 pmid:33231261 fatcat:hyczgczii5gehmupncxnsvcv3e

Multimodal Functional Neuroimaging: Integrating Functional MRI and EEG/MEG

Bin He, Zhongming Liu
2008 IEEE Reviews in Biomedical Engineering  
in the understanding and modeling of neurovascular coupling and in the methodologies for the fMRI-EEG/MEG simultaneous recording.  ...  Combining fMRI and EEG/MEG data allows us to study brain function from different perspectives.  ...  All of these methods discussed so far are model-driven in a sense that they require specific assumptions about the time courses of the processes contributing to the measured signals and/or a priori statistical  ... 
doi:10.1109/rbme.2008.2008233 pmid:20634915 pmcid:PMC2903760 fatcat:6hogffiwvrbonmxn2swkyqstde

The Integration of Social and Neural Synchrony; A Case for Ecologically-Valid Research Using MEG Neuroimaging

Jonathan Levy, Kaisu Lankinen, Maria Hakonen, Ruth Feldman
2020 Social Cognitive and Affective Neuroscience  
We also showcase the advantages of MEG neuroimaging as a promising tool for studying interactive neural synchrony and consider the challenge of ecological validity at the expense of experimental rigor.  ...  The recent decade has seen a shift from artificial and environmentally-deprived experiments in neuroscience to real-life studies on multiple brains in interaction, coordination and synchrony.  ...  We end with presenting methodological innovations that have the potential to further advance this field: data-driven multivariate analysis (CCA) and mobile MEG (OPM).  ... 
doi:10.1093/scan/nsaa061 pmid:32382751 pmcid:PMC7812634 fatcat:q5djph6u6bee5ps2gc24buija4

D6.5 HEX/EGS Systems Components BIM Libraries

Sergio Velasquez
2020 Zenodo  
The intent of WP6 is to carry out an assessment of the different scenarios and to demonstrate the economic feasibility of the GEOFIT developments thanks to structural and HEX/EGS retrofitting.  ...  Taking advantage of its capabilities regarding the data integration and visualization, the GEOBIM platform provides the following functionalities: • the tracking of the construction processesthe related  ...  ACKNOWLEDGEMENT This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 792210.  ... 
doi:10.5281/zenodo.6627338 fatcat:npeiiiefo5dabmtmr2jsbf3ax4

Real-Time MEG Source Localization Using Regional Clustering

Christoph Dinh, Daniel Strohmeier, Martin Luessi, Daniel Güllmar, Daniel Baumgarten, Jens Haueisen, Matti S. Hämäläinen
2015 Brain Topography  
We conclude that real-time source estimation based on MEG is a feasible, useful addition to the standard on-line processing methods, and enables feedback based on neural activity during the measurements  ...  We conducted real-time source localization on MEG data from an auditory experiment.  ...  Acknowledgments This work was funded by the German Research Foundation (DFG, grant Ba 4858/1-1), National Institutes of Health (NIH, grants 5R01EB009048 and 2P41EB015896), IZKF Jena (J21) and the German  ... 
doi:10.1007/s10548-015-0431-9 pmid:25782980 pmcid:PMC4575234 fatcat:lrwfbdpjxzccpavd5lcm2oheta

Electroencephalogram based Brain Computer Interface System Analysis

Electroencephalogram is the study of electrical signals of the brain recorded using a mesh like structure containing electrodes that is placed on the scalp.  ...  The history of EEG dates more than a century back, when the brains of rabbits and monkeys were studied and almost 50 years later in the year 1924, the first ever brain activity of human was noted by famed  ...  Data driven and Model driven method. Computational biophysical model is used by model driven approach.  ... 
doi:10.35940/ijitee.c1092.0193s20 fatcat:nldtc2tj4zh4jc67wr5iektjle

Precision magnetic field modelling and control for wearable magnetoencephalography

Molly Rea, Niall Holmes, Ryan M. Hill, Elena Boto, James Leggett, Lucy J. Edwards, David Woolger, Eliot Dawson, Vishal Shah, James Osborne, Richard Bowtell, Matthew J. Brookes
2021 NeuroImage  
With the promise of a wearable system that offers lifespan compliance, enables movement during scanning, and provides higher quality data, OPMs could drive a step change in MEG instrumentation.  ...  We suggest that this technique could be used in future OPM-MEG experiments to improve the quality of data, especially in paradigms seeking to measure low-frequency oscillations, or in experiments where  ...  Acknowledgements We express our thanks to Benjamin Wittevrongel from the Department of Neurosciences at K.U. Leuven, Belgium, for providing the paradigm used here in the MEG demonstration.  ... 
doi:10.1016/j.neuroimage.2021.118401 pmid:34273527 pmcid:PMC9248349 fatcat:al54hwdqxvforcwhu3d4ud75aq

Empirical validation of directed functional connectivity

Ravi D. Mill, Anto Bagic, Andreea Bostan, Walter Schneider, Michael W. Cole
2017 NeuroImage  
However, a host of methodological uncertainties have impeded the application of directed connectivity methods, which have primarily been validated via "ground truth" connectivity patterns embedded in simulated  ...  These results extend simulation studies of directed connectivity, and offer practical guidelines for the use of such methods in clarifying causal mechanisms of neural processing.  ...  The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Science Foundation or National Institutes of Health.  ... 
doi:10.1016/j.neuroimage.2016.11.037 pmid:27856312 pmcid:PMC5321749 fatcat:l56jxk6g5fesbb4cczzzw7b3au

Empirical validation of directed functional connectivity [article]

Ravi D Mill, Anto Bagic, Walter Schneider, Michael W Cole
2016 bioRxiv   pre-print
However, a host of methodological uncertainties have impeded the application of directed connectivity methods, which have primarily been validated via 'ground truth' connectivity patterns embedded in simulated  ...  These results extend simulation studies of directed connectivity, and offer practical guidelines for the use of such methods in clarifying causal mechanisms of neural processing.  ...  Source modeling of the pre--processed MEG data was conducted in Fieldtrip.  ... 
doi:10.1101/070979 fatcat:2pxqvzyyjzfklg6zsqxlj57jtu

Approaching the in vitro clinical trial: engineering organs on chips

A. K. Capulli, K. Tian, N. Mehandru, A. Bukhta, S. F. Choudhury, M. Suchyta, K. K. Parker
2014 Lab on a Chip  
Bringing the patient from bedside to bench in this form requires that the design, build, and test of OOCs be founded in clinical observations and methods.  ...  One promising new tool to enhance preclinical development of drugs is Organs on Chips (OOCs), proposed as a clinically and physiologically relevant means of modeling health and disease.  ...  Acknowledgements This work was funded by the Harvard School of Engineering and Applied Sciences, the Wyss Institute for Biologically Inspired Engineering, the National Institutes of Health (UH2 NS080728  ... 
doi:10.1039/c4lc00276h pmid:24828385 pmcid:PMC4117800 fatcat:tyltimwjyjcffodt26yvdd23ba

Neural representations of imagined speech revealed by frequency-tagged magnetoencephalography responses

Lingxi Lu, Jingwei Sheng, Zhaowei Liu, Jia-Hong Gao
2021 NeuroImage  
Using the frequency tagging we concurrently tracked the neural processing timescale to the top-down generation of rhythmic constructs embedded in speech mental imagery and the bottom-up sensory-driven  ...  Speech mental imagery is a quasi-perceptual experience that occurs in the absence of real speech stimulation.  ...  Acknowledgements This work was supported by the National Natural Science Foundation of China ( 81790650 , 81790651 , 81727808 , 31421003 and 81627901 ), the National Key Research and Development Program  ... 
doi:10.1016/j.neuroimage.2021.117724 pmid:33421593 fatcat:mhtdwz7pnbcnjijc3u3twe6lmy

Committee report: Publication guidelines and recommendations for studies using electroencephalography and magnetoencephalography

Andreas Keil, Stefan Debener, Gabriele Gratton, Markus Junghöfer, Emily S. Kappenman, Steven J. Luck, Phan Luu, Gregory A. Miller, Cindy M. Yee
2013 Psychophysiology  
The guidelines also include a checklist of key information recommended for inclusion in research reports on EEG/MEG measures.  ...  The scope of concepts, methods, and instruments used by EEG/MEG researchers has dramatically increased and is expected to further increase in the future.  ...  Path analysis, structural equation modeling, graph theory, and methods developed for hemodynamic data (e.g., dynamic causal modeling) can readily be applied to electromagnetic time series.  ... 
doi:10.1111/psyp.12147 pmid:24147581 fatcat:ql6dyx3slfabrgcbpgkbj6vjc4

Constructing Clinical Use: An Activity-Theoretical Perspective on Implementing New Technology

Mervi Hasu
2000 Technology Analysis & Strategic Management  
On the first floor of the laboratory, there are a patient preparation room, a shielded room with the MEG probe unit and an operating system room with real time data acquisition and control workstations  ...  Based on the analysis of a breakdown in using the data analysis programs and providing the clinical reports in time, I put forward an enriched model of developmental contradictions in the implementation  ... 
doi:10.1080/09537320050130606 fatcat:xpujgvav4rebjjmatg66xhboie

Multisensory correlation computations in the human brain uncovered by a time-resolved encoding model [article]

Jacques Pesnot Lerousseau, Cesare Parise, Marc O. Ernst, Virginie van Wassenhove
2021 bioRxiv   pre-print
To test the match between the Multisensory Correlation Detector dynamics and the magnetoencephalographic recordings, we developed a novel dynamic encoding-model approach of electrophysiological activity  ...  Second, we found strong fits of brain activity to the two outputs of the Multisensory Correlation Detector in temporo-parietal cortices, a region with known multisensory integrative properties.  ...  In causality judgment blocks, three units explained a significant part of the variance of the MEG activity ( Overall, the model based temporal response function we developed allowed the identification  ... 
doi:10.1101/2021.01.28.428606 fatcat:7yi32gkq4fhx7imae6om5b4q6u

Software Tools for the Analysis of Functional Magnetic Resonance Imaging

Mehdi Behroozi, Mohammad Reza Daliri
2012 Basic and Clinical Neuroscience  
Currently, there is a large variety of software packages for the analysis of fMRI data, each providing many features for users.  ...  Since there is no single package that can provide all the necessary analyses for the fMRI data, it is helpful to know the features of each software package.  ...  visualizations of anatomical and functional data sets with real-time GPU-based volume rendering; a real-time neuronavigation module as part of the TMS Neuronavigator system.  ... 
doaj:c89ba4d7eff64c98a07aaed975573b3d fatcat:lfm4knddyrdmhctgskjdtlagy4
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