WinEEG Advanced software allows for the recording, editing and analysis of continuously recorded EEG using a Mitsar amplifier. WinEEG Advanced also has the ability to import non-Mitsar format files, and record Event Related Potential data with the use of PsyTask. Click here to download WinEEG, Security key drivers and Mitsar drivers.

WinEEG advanced version allows the user all of the functions of the basic version and additionally the ability to import non-Mitsar format files, record Evented Related Potential data (with the use of Psytask Software -sold separately) to perform database comparisons (with the addition of the HBI database). WinEEG Advanced is included with Mitsar-202 amplifiers . The Human Brain Institute normative database requires WinEEG advanced version at an additional fee.

Recording

The EEG (up to 32 channels) is stored on the hard disk and available for subsequent analysis. During recording, the signals are continuously displayed on the screen. The software emulates the “moving” paper mode. Display screen uses paper EEG aspect ratio to simplify reading. EEG can be recorded synchronously with visual and acoustic stimuli presentation for ERP/ERD studies. ERPs and ERDs are computed in psychological tasks of various designs. The task design is performed by Psytask (the program written by our company is provided separately) or by the conventional Presentation software (Presentation, E-Prime). During EEG recording photoflash may be controlled manually or using predefined program. Automatic impedance measurement procedure helps to control a quality of electrodes setting.

Display

A flexible review program allows fast display of the EEG on the computer monitor and immediate access to any part of the recording. Ten user definable labels may be used to mark EEG recordings for future quick access to this part.

Montages and filters

Recorded EEG can be displayed in different montages: monopolar, bipolar, average reference, weighted average reference and etc. EEG can be filtered by IIR digital filters to change frequency band of recording to and eliminate environmental noise (50 or 60 Hz). Also EEG can be filtered by high order FIR filters.

Artifact correction

Advanced artifact rejection mode provides easy and fast search and elimination of bad EEG epochs. Artifact correction procedures are based on PCA or ICA decomposition of raw EEG and spatial filtering helps to increase quality of EEG record.

Spectral analysis and Brain Mapping

WinEEG software includes the multichannel spectral analysis, brain mapping and coherence. Power spectra and coherence can be computed for any selected part of recorded EEG. Different parameters of spectra computed for predefined frequency band ranges can be displayed as histograms, maps and tables. The spectra data can be exported to other applications (standard statistical packages such as STATISTICA or SPSS) by using ASCII format for a future statistical analysis.

Event Related Potentials, Event Related De/Synchronization, Wavelet Analysis

Visual and acoustic stimuli can be presented during the EEG recording so that event-related potentials (ERPs), event-related wavelet transform event-related de/synchronization (ERD/ERSs) and parameters of task performance (omission, commission errors, reaction time and its variance, measuring by special button) are computed off-line. Visual and auditory stimuli are presented on separate computer.

A set of conventional psychological tasks is provided. Latencies, amplitudes and topographic maps of different types of ERPs components (such as P300, mismatch negativity, GO/NOGO…), of desynchronization and synchronization components in different frequency bands can be measured and statistically assessed.

Automatic spike detection

Spike detector automatically detects, marks and averages spikes and sharp waves in EEG recording. High effective algorithm of automated spike detection based on both estimation of amplitude-temporal parameters of waveforms and equivalent dipole source applying to both raw EEG and decomposition of multi channel EEG on components (using PCA or ICA) helps to search for paroxysmal activity in long-term EEG records. Manual correction of results of spike detection algorithm provides a possibility to eliminate artifacts. Averaging of similar spike waveforms increases an accuracy of measurement.

Dipole source localization

Build in equivalent dipole localization algorithm help to identify a brain position of source of paroxysmal activity.

3D mapping

3D mapping of data can be performed by LORETA software to which mapped data is transferred automatically.

Averaging and data processing automation

The spectra, coherence, ERP, ERD and etc. can be process in automated mode for collection of recording selected by user. The results of processing will be automatically stored to build-in database.

The spectra, coherence, ERP, ERD and etc. can be averaging automatically mode for collection of recording selected by user.

Exporting and importing the data

Raw EEG can be exported to files with different formats such as ASCII, Binary, EDF and etc. Raw EEG can be imported from file with next formats EDF, UDF, ASCII, LEXICOR, NeuroScan v.4.

EEG spectra, coherence, ERP, ERD and parameters of task performance can be exported to ASCII file automatically for collection of recordings selected by user.

Built-in database

All patient information including EEG waveform and video can be saved to build-in database or written on CD. Build-in database helps to automatically search recording and provide automatically data processing, data averaging and exporting.

In addition all data can be stored and reviewed on any Windows-based PC.

Final report

Final report can be written using MS Word. The corresponding file will be created and opened automatically. Both selected final report template, tables of processing results and different pictures (copies of windows content) will be automatically placed in the text of final report.

Win EEG ADV Dongle