EGI's Research eNewsletter Winter 2012: bringing you the latest product and event information.
EGI

dEEG Detects Awareness

A new paper reports that patients in a coma respond to commands
What is the nature of consciousness when a person is in a vegetative state? How much can they hear and understand? What does this tell us about the nature of consciousness? A recently published study in The Lancet used dense array EEG from EGI to demonstrate that some patients, while diagnosed as being in a vegetative state, do understand what they hear and can follow instructions.

dEEGThe vegetative state, defined as "wakefulness without awareness," is conventionally diagnosed using examinations that test for sustained, reproducible, purposeful, or voluntary behavioral responses to various stimuli. However, because these tests are based on behavioral responses, they are not able to detect awareness that cannot be processed into a measurable physical behavior. Recent studies using functional magnetic resonance imaging (fMRI) have shown that some patients, diagnosed as being in a vegetative state, are aware and able to respond to commands, as detected by changes in blood oxygen level in specific parts of the brain. Because it can be difficult and expensive to perform an MRI on such patients, a team of researchers from the University of Western Ontario, University of Cambridge, University and University Hospital of Liège, and Addenbrooke's Hospital in Cambridge performed a similar investigation using dense array EEG, a less expensive and more portable method for measuring brain activity.

Read the original research report in The Lancet. | Find out more about EGI’s dense array EEG systems.

In this Issue:

dEEG Detects Awareness
A new paper reports that patients in a coma respond to commands

Seminal Publication on dEEG and fMRI
New paper investigates the effect of dEEG on fMRI signal

New Net Design for MR Environments
HCGSN 210 MR has updated design

GPS 2.0 Now Available
Tool for increasing accuracy of source estimation

EGI School
Learn directly from the EEG experts

EEG Readers Course
"Interpretation and Clinical Applications of Dense Array EEG"

OHBM Workshop
"Simultaneous fMRI and dense array (256-channel) EEG"

EGI Company News
New certifications - and - Job openings at EGI

Customer Publications
New published research with EGI products

Conferences
Where to see EGI in 2012

Seminal Publication on dEEG and fMRI

New paper investigates the effect of dEEG on fMRI signal
Electroencephalography (EEG) excels at measuring very fast (millisecond) responses in brain activity. Functional MRI (fMRI) measures the slower (~1 sec) blood oxygen level dependent responses. Using the two simultaneously promises a better understanding of brain activity, based on the two complementary measurements. A recent study from Qingfei Luo and Gary Glover at altStanford University investigated the technical issues of using the two techniques together. They showed that whereas dense array EEG (dEEG) reduces the fMRI signal, it also reduces the noise, resulting in little change to the signal to noise ratio, and thus no significant change to the BOLD signal.

Read the original research report. | Find out more about EGI’s MR-compatible EEG systems.

New Net Design for MR Environments

HCGSN 210 MR has updated design
EGI's new Net design (originally announced in July 2011) is now available for order in all sizes and channel counts, including for MR environments. The new design provides the same sensor layout and electrode performance as the earlier Nets but has increased mechanical strength that makes it even faster and easier to apply. In addition, new pedestal labels are easier to read, as well as being IR-camera ready for use with EGI's new Geodesic Photogrammetry System (GPS) 2.0.

Find out more about EGI's MR-compatible EEG systems. | Request a quote.

GPSGPS 2.0 Now Available

Tool for increasing accuracy of source estimation
The Geodesic Photogrammetry System (GPS) is an innovative photographic technology for sensor localization, essential to obtaining the most accurate source estimation with dense array EEG (dEEG). EGI’s new GPS 2.0 features IR cameras to minimize room light distortion, an easy-glide dome movement system for improved convenience, and updated software for user-guided solving of the electrode 3D coordinates as a point cloud.

Request a quote.

altEGI Schools

Learn directly from the EEG experts
The EGI School Program brings EEG experts — EGI support engineers and scientists — to your part of the world. Each year we hold the EGI Summer School in Eugene, Oregon. All levels of experience are catered to, with a five-day course covering core dense array EEG skills and three-day course covering the fundamentals of advanced EEG analysis. The International Schools include five days of lectures and intensive hands-on time to help you get the most from your Geodesic EEG System (GES). At an EGI School, you will learn:

  • core EEG techniques, including data acquisition, Net application, and artifact recognition
  • techniques for optimizing the functionality of Net Station software
  • fundamentals of advanced dense array EEG analysis

Upcoming Schools

Australia EGI International School, 23-27 April 2012
Hosted by University of New South Wales, Kensington
View the syllabus for this course. | Preregistration now open.

France EGI International School, 18-22 June 2012
Hosted by National Center for Scientific Research in Paris
View the syllabus for this course. | Preregistration now open.

EGI Summer School, July 30–August 8, 2012
Valley River Inn in Eugene, Oregon
View the Core dEEG Skills course syllabus.| View the Foundations of Advanced dEEG Analysis Techniques course syllabus. | Preregistration now open.

India EGI International School, 17-21 September 2012

China EGI International School, 15-19 October 2012

Please direct any questions about any EGI School to This email address is being protected from spambots. You need JavaScript enabled to view it..

altEEG Readers Course

"Interpretation and Clinical Applications of Dense Array EEG"
In collaboration with Ann Arbor Rehabilitation Centers and The Center for Neurological and Neurodevelopmental Health (CNNH), Electrical Geodesics, Inc. (EGI) is sponsoring a workshop for neurologists and neuroscientists interested in applying dense array EEG in a clinical setting. Staff from all three centers will be teaching, technical, clinical and business aspects of using dEEG in the clinic. The workshop will be May 18-19, 2012 in Dexter, Michigan, just outside of Ann Arbor. A substantial portion of the course will be devoted to teaching how to record, read, and interpret dEEG, using hands-on techniques and case studies.

Find out more and register.

OHBMOHBM Workshop

“Simultaneous fMRI and dense array (256-channel) EEG”
EGI will sponsor a lunch symposium at the 18th Annual Meeting of the Organization on Human Brain Mapping in Beijing, China. The symposium will be held on Wednesday, 13 June 2012 from 12:30 to 3:30 pm and will be entitled “Simultaneous fMRI and Dense Array (256-channel) EEG: Addressing Practical Challenges and Spatial Resolution".

The symposium will feature Professor Gary Glover, PhD from Stanford University School of Medicine. Dr. Glover will present a talk entitled “Optimizing acquisitions and other oddments with EEG/fMRI,” which will cover several topics including: the choice of TR in EPI/Spiral acquisitions, PPG vs ECG for BCG de-noising, MRI Signal dropout with dEEG Net, concurrent M-sequence encoding and inverse solutions, and practical examples in a sleep study on spindles and K complexes.

Bookmark EGI's Workshop page and check back for updates.

EGI Company News

New certifications
EGI has received the following new certifications:

  • Taiwan medical device certification for GES 300
  • South Korea medical device certification for GES 300
  • Health Canada medical device license for GeoSource 2.0 source estimation software
  • Registration Certificate from the Russian Federal Service of Health Care and Social Developmental Control
  • INVIMA certificate for GES 300 in Colombia

View these and other certificates.

Join us
Are you interested in an exciting career with EGI? See our Employment page.

Customer Publications

New published research with EGI products
In the third quarter of 2011 over 70 different papers were published using EGI’s Geodesic EEG systems for research. These new publications cover a wide range of advances in neuroscience and medicine including research on Parkinson’s Disease, autism spectrum disorder, social cognition, language comprehension, attention, sleep, anxiety, stress, and more.

You may access this Q3 2012 Customer Publication listing here. Or, for a complete listing of EGI customer publications, you may navigate to the link above and download the PDF file available.

Please continue to share your publication notifications with us so that we can continue to offer this comprehensive listing. Simply email your APA-style reference to This email address is being protected from spambots. You need JavaScript enabled to view it..

2011 EGI Customer Publications. | This email address is being protected from spambots. You need JavaScript enabled to view it.

Conferences

Where to see EGI in 2012
You can find EGI scientists and staff at the following conferences. Please visit us at our booth to discuss your research and learn about EGI's latest products.

  • March 21-25, World Congress on Brain Injury (WC- IBIA), Edinburgh, Scotland
  • March 31-April 3, Cognitive Neuroscience Society (CNS), Chicago, IL
  • April 11-13, British Association for Cognitive Neuroscience (BACN), Newcastle, UK
  • May 1-4, 6th Conference on Mismatch Negativity (MMN) and its Clinical and Scientific Applications, New York, NY, USA
  • May 5-11, International Society for MR in Medicine (ISMRM), Melbourne, Australia
  • May 14-16, The Seventh IASTED International Conference on Human-Computer Interaction (HCI), Baltimore, MD
  • May 17-19, International Meeting for Autism Research (IMFAR), Toronto, Canada

See the full conference list.