History of NeuroGuide

 

Applied Neuroscience, Inc.

Robert W. Thatcher, Ph.D.

December 18, 2002

 

1-       The central and binding idea of NeuroGuide 1.0 is conventional EEG and QEEG on the same screen at the same time in which QEEG is a lens that can be changed by a click of a mouse.    NG 1.0 was not distributed nor sold until it reached a level of user friendliness without major bugs on March 8, 2002 when it was then labeled as NG 1.1.    NeuroGuide 1.0 contained all seven normative databases, re-montaging and automatic artifacting, dynamic Z score edits, ascii export, EEG printout, Lexicor, NeuroData, Mindset, CapScan and BrainMaster imports and NG 1.0 & 1.1 contained about 90% of the currently distributed NeuroGuide 1.4.7., introduced on November 18, 2002.

 

2-      NeuroGuide 1.1 (3/8/2002): was the first NeuroGuide to be distributed to a small number of beta testers.   NG 1.1 used the Key A and a Key B protection without uninstall.  This is important because the NG 1.1 Key B may not work with NG 1.2 and beyond.

 

3-      NeuroGuide 1.2 (3/26/02):  was the first NeuroGuide to use the uninstall/install windows setup files.  It added page up, page down, home, end and arrow keys as well as mouse changes in editing.  It lacked color topographic maps and discriminant functions and connection maps.

 

4-      NeuroGuide 1.3.0 (5/29/02 – 6/8/02):  included color topographic maps and connection maps and more import file formats and more export file formats and LORETA export with improved processing speed. 

 

5-      NeuroGuide 1.4.0 – 1.4.4 (7/26/02 – 8/20/02): added connection maps and expansion of the ratios to the gamma frequency band (25 Hz to 30 Hz) and discriminant functions.   The TBI and LD/ADD discriminant functions and severity indexes were added.  A different Lexicor Demo example was selected to help illustrate TBI vs. learning disabilities/ADD.

 

6-      NeuroGuide 1.4.5 (9/19/02): addition of ASCII import capability and Lexicor and Neuroguide export formats, saving of the raw and Z score FFT values in tab delimited format and improved printing capability.  

 

7-      NeuroGuide 1.4.6 (10/20/02): 1- added a clipboard capture option, 2- improved the ASCII import window of text files to automatically look for Tab, Comma & Space Delimiters and not to crash when an import error occurs, 3- FFT Power Spectral Density (PSD) to define microvolts as uv^2/Hz and setting Z = 0 at 0 Hz and, 5- added a second page to the report generator of “Technical Details” that include the epoch length, recording condition and average and individual channel reliabilities.  

 

8-      NeuroGuide 1.4.7 (11/18/02): 1- It is about 40% to 60% faster in the report generate program, depending on your computer; 2- It imports Cadwell Easy I & II files and 3- The print routine is faster and compatible with more printers than previously.

 

9-      NeuroGuide 1.4.8 (11/22/02):  Corrected blue-red color reversal problem with 1.4.7 and implemented a smarter color matching routine so that users can now use any bit size for their Display Settings.  16 bit settings increase the speed and reduce memory loading with no noticeable change in color quality.  Cadwell Easy I & II file import and the other improvements in 1.4.7 are retained.

 

10-   NeuroGuide 1.4.9 (12/18/2002):  DeyMed amplifier equilibration when using the Text or ASCII import tool.   The NeuroGuide Logo identifies the NeuroGuide formatted output files.  LORETA default Montages in the correct electrode order for linked ears and average reference which can be obtained by a mouse click in the Montage window.  Export in the File>Export menu in which ASCII files can be saved with or without a header.  

 

11-   NeuroGuide – 1.5.0 (and beyond):  Not yet released but planned improvements and additions to file import capability include Biologic (ascii), Pro-Comp, NeuroCybernetics, European Universal Format (EDF), Mitsar format, other formats, extending non-Z-scored FFT color maps to 40 Hz, improve printing by using Enhanced Metafiles, improved direct printing, improved speed of computations.

 

 

 

ACKNOWLEGEMENTS:

 

We are grateful for the assistance and feedback from Dr. Cory Hammond, Dr. Joel Lubar, Dr.  Lukasz Knopka, J.D. Elder, Wayne Noland, Dr. Ruben Rosenblatt, Mr. Les Abrams, Mr. Bob Gurnee, Dr. Jerry Gluck, Dr. Tom Collura, Mr. Leslie Sherlin and many others.    We at Applied Neuroscience, Inc. sincerely thank you and welcome your feedback.