online support
neuroscience
psychiatry
neurology
 
you are here: home | products | asa | recording
 
 ASA EEG/ERP recording 
 
Integrated data acquisition
The ASA software provides you with the functionality to record EEG and ERP data. The software connects with the ANT amplifier box through a USB interface and displays the incoming stream of data. It measures electrode impedances, records the data to a file, and allows a variety of analysis during the recording. The functions to initialize the recording are wrapped in a customized data acquisition toolbar, which can easily be activated by those who wish to record EEG/ERP with ASA.
 
 back to topto top 
 
Online trigger statistics
While acquiring the data, ASA provides information about the ongoing ERP recording and stimulation: the number of incoming triggers, correct responses, mean response time etc are displayed and automatically updated. The triggers can be logically combined to create conditions for online averaging.
EEG online view of ASA in the recording mode (yellow background indicates that writing to disk is activated). The box to the left shows information about the triggers/reactions recorded so far. 
 back to topto top 
 
Realtime spectral analysis
Spectral analysis is a key feature of ASA and can be applied online in order to assess the signal quality directly when it is recorded. The line spectrum, spectral power mapping, and compressed density spectral arrays (CDSA, based on FFT and wavelets) are available and can be added any time to the display.
Online wavelet calculation allows to inspect specific transient features of EEG in time. 
 back to topto top 
 
Online averaging
Doing ERP in the lab means in-time assessment of signal quality, as you will have to reschedule your volunteers for another recording otherwise. Online averaing of the desired ERP component is just a button click away, while the raw EEG is being recorded. The online averaging can be done in a user-defined montage, e.g. in just a few central channels to show the existance of a P300 effect in your ongoing recording.
 
 back to topto top 
 
Remote stimulation/acquisition control
Start and stop recording can be programmed to ensure your data is automatically stored when you start your stimulation paradigm. Remote control of the eevoke stimulation package is available as well. The key benefit of this that you only need to operate one computer and can focus on your subject instead of thinking which key to press next.

Even better, the stimulation session can be activated via your local network from the acquisition computer, further reducing the interaction.
 
 back to topto top 
 
Neurofeedback
A neurofeedback module can be added to the ASA recording software for those cases you wish to use the system for biofeedback. more
 
 back to topto top 
 
Recording of video and EEG
For those researchers that wish to add video to the asa-lab recording system, a video module is available. It offers many features for video recording, review and editing. More importantly, the video is synchronized with the EEG and stored in a compressed MPEG4 video format. more
 
 back to topto top 
 
Online access through COM-interface and local network
Access the ASA recording software and perform your own analysis online! more
 
 back to topto top