WinEEG research software

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11 Sep

WinEEG and HBIdb installation and setup

The HBI reference (normative) database includes multi-channel EEG and ERP recordings of healthy subject from 7 to 89 yo. HBI allows to compare your patient Spectra and ERP results to "norms" and find significant deviations. In HBI a 19-channel EEG is recorded in two resting conditions with eyes open (minimum 3 minutes), eyes closed (minimum 3 minutes), and five different task conditions, including two stimulus GO/NOGO tasks, arithmetic and reading tasks, auditory recognition and auditory oddball tasks. The characteristics [...]

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14 Nov

Current Source Density (CSD) in WinEEG

Current source density analysis (CSD) is a class of methods of analysis of extracellular electric potentials recorded at multiple sites leading to estimates of current sources generating the measured potentials. CSD Montage in WinEEG is based on spherical spline algorithm (Perrin et al., 1989) to compute scalp surface Laplacian or Current Source Density estimates for surface potentials (EEG/ERP). To create "CSD montage" you need to follow following steps: Go to Montage parameters and select AvW=CSD by F.Perrin option for [...]

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09 Oct

Group analysis and grand average files

WinEEG allow files group analysis and creation of grand average file including Spectra and ERP data. To access group analysis you need all your EEG/Spectra/ERP files added in internal WinEEG files database. To access database of raw EEG files go to File - Open EEG Database and to access databases of Spectra/ERP results go to File - Open Another Database. This example shows raw EEG files group processing. Using SHIFT or CTRL buttons select files you [...]

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28 Aug

If you want to get spectra maps for band range wider than 30 Hz

If you want to get spectra maps for band range wider than 30 Hz, you need to do next steps: 1)    Open WinEEG software, Menu—Setup—EEG Bandranges 2)    In opened window select “List name”, for example “Clinical 2” and add new bands as you need (here Ext. 1, Ext. 2 and Ext. 3) Use button “Change” to define every single band. Click OK 3)    Open the EEG file4)    Select time interval5)    Menu—Analysis—EEG Spectra In opened window select "Upper spectra frequency" 6)    Click OK and see spectra window. Switch to the map [...]

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28 Aug

LORETA & sLORETA DISTRIBUTION

Request password for Loreta installation: http://www.uzh.ch/keyinst/NewLORETA/PassWord/PassWord.htm Download link for LORETA: http://mitsar-eeg.ru/download/software/LORETA.zip Download link for sLORETA with matrix and coordinates file: http://mitsar-eeg.ru/download/software/sLORETA.zip Request password for Loreta installation: http://www.uzh.ch/keyinst/NewLORETA/PassWord/PassWordSloreta.htm How can I use LORETA for source distribution? 1.Choose two sources of activity localization you want to export to LORETA for analysis.2. Put left marker on the first event and right marker on the second. 3. Then perform command Analysis -> Source distribution (LORETA). 4. By first start WinEEG will ask you for LORETA location (C:\Program Files\LORETA\020-Main\LORETA.exe). Find following location C:\Program Files\LORETA\020-Main\ [...]

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27 Aug

How to create Montage with proper Reference?

First of all be sure you know your amplifier version.  You can find out the amplifier version number by opening Menu—Setup—Equipment parameters. It is a number in brackets (see red arrow). UPD: Recent WinEEG version has got new feature allowing to update all your current montages based on the connected amplifier version. It is availalbe in Equipment parameters there you need to click Update the default list of montages for given amplifiers'button. To modify montages and change your reference in WinEEG perfom following actions: [...]

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