EGI's Research eNewsletter June 2011: bringing you the latest product and event information.


Net Station 4.5 Software Updates

NSlogoNew open platform offers more control over experimental design and analysis
Electrical Geodesics, Inc. (EGI) is pleased to announce the release of Net Station 4.5. This latest release of EGI’s acquisition, review, and analysis software for clinical and research EEG applications contains several new enhancements, including a new file format, optimized filters, and new tools for simultaneous EEG-fMRI recordings. The introduction of 4.5 also marks the official launch of EGI’s expanded Interoperability Standards Program (ISP) for third-party commercial and open source software.

Additional new features include:

  • Streamlined video processing
  • Ballistocardiogram (BCG) artifact removal
  • Multithreaded and fully multiprocessor aware filter waveform tool

NS_ERPCentral to Net Station 4.5 is the introduction of EGI’s new Metafile Format (MFF), which is supported for acquisition, the waveform viewer, waveform tools, GeoSource, and the Geodesic Photogrammetry System (GPS).

Advantages of the new format include:

  • Faster read/write speeds
  • Data accessible directly from any language and on any operating system
  • XML meta information human-readable and editable
  • Seamless conversion of old files
  • Improved video integration and handling

Read the full article to learn more about the new features in Net Station 4.5. | Request Quotation

In this Issue:

Net Station 4.5
New open platform offers more control and efficiency

fMRI Compatible EEG System
Noise reducing features remove BCG artifacts

EEG, ERP, and Eye Tracking
Software available for full integration

Combined TMS and EEG
Experiments explore using TMS and EEG together

EGI Symposium at OHBM
Symposium explores source localization with dEEG

EGI Symposium at IEC
Symposium presents clinical studies in source localization

EGI Summer School
10-day training course in core and advanced fundamentals

EGI International School
Training courses around the world

Customer Research Publications
New publications for the first quarter of 2011

New Hires at EGI
EGI welcomes new hire

Where to see EGI in 2011

EGI's fMRI Compatible EEG SystemMR Head Coil

Dense array EEG now possible in MR environments
EGI’s magnetic resonance imaging (MRI) compatible EEG system is the first practical whole head EEG product that works within the MR environment. By taking EGI’s low profile, high-density EEG into the MRI scanner, you can improve the precision of electrical neuroimaging techniques applied to the EEG data. A number of EGI's 256-channel GES 300 MR systems have been installed worldwide.

New features with Net Station 4.5
The new Net Station 4.5 software install for MR environments includes features for working with MRI. Specifically, several algorithms are included to remove BCG artifacts from simultaneously recorded EEG/fMRI data: an OBS (Optimal Basis Set), Average Template Subtraction tool, and a QRS complex detection tool.

Read the full articleto learn more about EGI's GES 300 MR. | Request Quotation

E-Prime Extensions for Smart Eye Integrate EEG, ERP, and Eye Tracking

SE CameraEGI, Psychology Software Tools (PST), and Smart Eye are pleased to announce a fully integrated solution for simultaneous EEG/ERP and eye tracking recording. E-Prime® extensions for Smart Eye™ package brings together three software systems: PST’s E-Prime for ERP experiments, Smart Eye’s software for eye tracking, and EGI’s Net Station software for EEG/ERP acquisition, review, and analysis.

ERPE-Prime Extensions for Smart Eye (EESE) provides real-time communication between E-Prime 2.0 Professional stimulus presentation software and Smart Eye Pro 5.6 and above (latest release is 5.7). EESE allows users to control the delivery of stimuli based upon a subject's gaze. For example, researchers are able to pause an experiment until the subject is properly fixated on a particular region of interest. Additionally, EESE offers a number of exciting visualization as well as statistic extraction features in an easy-to-use environment. In essence, E-Prime Extensions for Smart Eye is a perfect tool to help design and evaluate psychological experiments. 

Read the full article to learn more about this new package. | Request Quotation

Combined TMS and EEG

New studies using combined TMS and EEG
Transcranial magnetic stimulation (TMS) is a noninvasive methodology that allows researchers to temporarily stimulate or inhibit specific areas of the brain. While TMS is commonly used by itself to study basic motor function, it can also be combined with EEG to investigate cortical functionality and connectivity. Over the past few years, EGI has worked with several research groups to test this type of multidisciplinary approach. We summarize here some preliminary experiments combining TMS and EEG using EGI’s Geodesic HydroCell Geodesic Sensor Net (HCGSN) product , either unmodified, or using custom low profile snaps.

Replacing HCGSN electrodes with custom low profile snaps
EGI’s engineering team has designed special low profile snaps that allow TMS researchers to place the coil close to the scalp. The snaps take the place of the actual electrodes and pedestals and are therefore able to preserve the elastomer structure of the HydroCel Geodesic Sensor Net (HCGSN), thereby ensuring the normal whole head coverage of the net. The snaps are 1 mm in height, as opposed to the normal 1 cm height of the pedestal, and are therefore able to allow for more focal delivery of the pulse. Using this modified net, Gilbert Preston’s lab of the University of Utah used a 10 Hz repetitive TMS (rTMS) design to study psychomotor processing speed (Anderson, Preston, and Silva, 2007).

Using unmodified HCGSN for TMS by increasing stimulation intensity
Another option for conducting combined TMS-EEG, which does not require any modification of the HCGSN, is to increase the intensity of the stimulation. Read the full article to learn more about using EGI's HCGSN for TMS.

OHBM EGI Symposium at OHBM

Anatomical Constraints for Dense Array EEG Source Localization
EGI is pleased to announce its participation in the 17th Annual Meeting of the Organization on Human Brain Mapping in Quebec City, Canada with a free workshop discussing the use of dense array EEG in source localization. A buffet lunch will be available for registered attendees. Online registration is now open.

Tuesday, June 28, 2011, 12:15 pm - 3:45 pm
Quebec City Convention Center, Room 205 ABC

This workshop will review progress in modeling the electromagnetic features of the human head with sufficient detail to allow accurate inverse estimation of the neural sources generating the dense array EEG recorded at the head surface.  The symposium program includes:

  • Anatomical Constraints in EEG Source Localization for Epilepsy - Don Tucker, PhD, EGI
  • EEG/fMRI: Impact of Noise on Quantitative EEG Measures - Fred Prior, PhD, Washington University in St. Louis
  • Mapping Somatosensory and Motor Cortex with dEEG and fMRI - Phan Luu, PhD, EGI
  • Accurate Head Modeling: Defining the Right Parameters - Linda Larson-Prior, PhD, Washington University in St. Louis
  • Anatomically Constrained Conductivity Estimation of the Human Head Tissues In Vivo Using EIT and MREIT - Sergei Turovets, PhD, EGI
  • Empirical Bayesian Methods for Separating Signal from Noise in EEG Source Localization - Jasmine Song, PhD, EGI
  • EEG Source Estimation Based on Exploiting Local Cortical Adjacency and Global Brain Connectivity - David Hammond, PhD, Neuroinformatics Center, University of Oregon

Online registration is now open. For additional information, email Workshops.

iec rome EGI Symposium at IEC

Advanced EEG… The Clinical Contribution
EGI is honored to sponsor an upcoming symposium featuring prominent neurologists who specialize in EEG and epilepsy. Please join us this August at the 29th International Epilepsy Congress in Rome, Italy. The symposium focuses on advanced EEG for presurgical planning and will be held on Wednesday, August 31, 2011, 7:30 am-9:00 am in Hall Five of the Marriott Rome Park Hotel. A light buffet breakfast will be served. 

This symposium, chaired by Dr. Paolo Manganotti (University of Verona, Italy), will explore recent efforts to apply advanced EEG methods, such as noninvasive EEG source estimation, to improve the presurgical planning process.

For the estimated 30% of epileptic patients who do not respond to antiepileptic drugs (AEDs), epilepsy surgery has long been a critical and potentially curative therapeutic option. Epilepsy surgery success rates have risen significantly in recent years, with some groups reporting success rates as high as 65−85%, depending on the patient population. However, efficient patient selection and careful presurgical workup remain an acknowledged essential element for surgical success. The symposium program includes:

  • Applying Electrical Source Imaging (ESI) in Presurgical Planning - Margitta Seeck, MD, University Hospital of Geneva, Switzerland
  • Comparison of Source Localization Results from Dense Array EEG, IC Electrodes, Depth Electrodes and Traditional EEG - Takamichi Yamamoto, MD, Seirei Hamamatsu General Hospital, Japan
  • The Role of Dense Array EEG in the Presurgical Evaluation - Mark D Holmes, MD, Harborview Medical Center, USA

The focus of the session will be practical in nature, focusing on clinical experience with advanced EEG methods, rather than on theoretical concepts. All talks will focus on experience with epileptic patients.

Online registration is now open. For additional information, email Workshops.

Summer School EGI Summer School

It’s time to register for EGI’s very popular Summer School, where you will gain well-rounded core EEG skills, and learn how to apply the latest analytical techniques. Held near EGI’s headquarters in Eugene, Oregon, the curriculum focuses on learning EEG skills in an interactive, hands-on environment directly from experienced scientists and support engineers on our staff.

This year, we have a new curriculum: two courses that can be taken together or separately, depending on your needs. Both courses incorporate theoretical material as well as plenty of hands-on learning.

Core dEEG Skills (5 days, August 1−5)
This is a hands-on course, designed to prepare students to be confident researchers in the field of dense array EEG (dEEG). It is perfect for all newcomers to EEG research, whether you are a new graduate student or a professor ready to implement a new technique to answer your research questions. Throughout the five-day course, students will develop a strong theoretical, scientific, and practical understanding of dEEG.

Foundations of Advanced dEEG Analysis Techniques (3 days, August 8−10)VRI
This advanced course is designed to help researchers already confident with the basics of dEEG acquisition and analysis move towards more advanced techniques. You will learn the theory of advanced techniques as well as how to apply the techniques to everyday research scenarios.

Both courses will be held at the Valley River Inn in Eugene, Oregon. This hotel and conference center is located along the quiet banks of the Willamette River, and will provide us with a beautiful location for the courses. We have negotiated special student rates for you, so that you can also stay at the Inn and enjoy their 24-hour recreational facilities around classes!

Read more about EGI's Summer School program and register online. | Reserve your hotel room at EGI's special rate

EGI International School

The Summer School's sister event, the EGI International School (EIS), is extremely popular and continues to grow. In February of this year, the EIS Malaysia saw students from across Malaysia and Singapore meet in Johor Bahru for five days of intensive EEG learning. Dr. Gaynor Foster, the manager of EGI's Training and Technical Support Department, said:

"Although Eugene Summer School provides students with a unique opportunity to meet the scientists and developers behind our products, I am so pleased that we are able to travel around the world to meet our customers in these international schools. In addition to giving us the opportunity to let everyone know how to get the most out of our Net Station software, I am under no illusion that the most important aspect of the school is the networking that goes on around the classes. It is fantastic to see people forging relationships that will help them on a day-to-day basis and progress in their own careers". Earth

Two more international schools are scheduled for 2011:

  • EIS China (September 19−23)
  • EIS Israel (October 24−28)

We will announce open registration for these courses on our International School page.

Published Research with EGI Products

Continuing customer success in publishing using dense array EEG is evident with over 45 publications in the first quarter of 2011. These publications cover a wide range of advances in neuroscience and medicine, including research on autism spectrum disorder, traumatic brain injury, speech processing, language, sleep, depression, anxiety, stress, memory, and brain computer interface. You may access this Q1 2011 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.

Dritten New Hire at EGI

Cognitive research scientist to provide support in Europe and sales in the UK
We are delighted to announce the hire of Dritan Nikolla, who will be based in London to provide support for our customers in Europe, as well as handling sales for customers in the UK.

Dritan has a degree in Cognitive Science from the University of Westminster, and is near to completing his doctoral degree in neurophysiology at the University of Gloucestershire, in collaboration with the UK’s Ministry of Defense. His work focuses on the etiology of emotions, with particular reference to the interaction between dynamic aspects of emotions and variations in time perception. By searching for the bio-psychological markers of effective and defective decision-making of people in a range of emotional states, Dritan aims to develop practical tools that can be used to reduce dangerous errors from people who work in high-risk environments, such as the military.

Dritan is no stranger to our equipment, having used the GES 300 during his PhD studies. He designed, developed, and managed a large number of experiments, based on both Net Station and E-Prime platforms, so he brings a wealth of experience to his new role as European Support Engineer and UK Sales Representative. Please join us in welcoming Dritan to the EGI team.

Join us
Are you interested in an exciting career with EGI? See our Employment section for current job openings.

Where to See EGI

You can find EGI scientists and staff at the following conferences. Please visit us at our booth. We would love to talk with you about your research.

  • June 26-30: 17th Annual Meeting of the Organization for Human Brain Mapping (OHBM), Quebec City, Canada
  • September 14-18: 51st Annual Meeting of the Society for Psychological Research (SPR), Boston, MA, USA
  • October 6-8: European Society for MR in Medicine and Biology (ESMRMB), Leipzig, Germany
  • October 14-17: 52nd Annual Meeting of the European Society for Pediatric Research (ESPR), New Castle, UK
  • November 12-16: Neuroscience 2011 (SFN), Washington, DC, USA

Full Conference List