Brainvision: Difference between revisions
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= Brainvision | {{Infobox tsg | ||
| name = Brainvision | |||
| image = Logo brainproducts.png | |||
| caption = <br />Files provided on your Wiki page are neither provided by Brain Products nor up to date; The most current versions of all these files can be found on the brain products website at<br />https://www.brainproducts.com/downloads.php<br /><br /> | |||
| downloads = {{bulleted list | |||
| {{Surfdrive|PZ3WfwtnClCkVhs|Installs and Manuals}} | |||
}} | |||
}} | |||
Electroencephalography is the neurophysiological measurement of electrical activity in the brain as recorded by electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. The resulting traces are known as an electroencephalogram (EEG) and represent a summation of post-synaptic potentials from a large number of neurons. | Electroencephalography is the neurophysiological measurement of electrical activity in the brain as recorded by electrodes placed on the scalp or, in special cases, subdurally or in the cerebral cortex. The resulting traces are known as an electroencephalogram (EEG) and represent a summation of post-synaptic potentials from a large number of neurons. | ||
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Brain Products EEG amplifiers are equipped with a number of noise reduction techniques such as active noise cancellation and active electrodes. High common mode rejection as well as low amplifier noise ensure maximum data quality. Our huge product range includes a range of electrodes and caps with custom or standard montages as well as a variety of requisite accessories. | Brain Products EEG amplifiers are equipped with a number of noise reduction techniques such as active noise cancellation and active electrodes. High common mode rejection as well as low amplifier noise ensure maximum data quality. Our huge product range includes a range of electrodes and caps with custom or standard montages as well as a variety of requisite accessories. | ||
== Digital Port Settings (Markers/Buttonbox) == | |||
[[image:DigitalPort.jpg]] | |||
== Interface BITSIbox == | |||
{{See also|ButtonBoxes}} | |||
== Presentation == | |||
In the BITSI simple protocol you will have to reset the code manually to 0. | |||
BITSI simple code: | |||
<syntaxhighlight lang="python" line> | |||
#TemplateINFO.pcl | |||
output_port Oport = output_port_manager.get_port( 1 ); | |||
#TemplateSUBS.pcl | |||
Oport.send_code(100); #This is your marker code, range code 1-255 | |||
wait_interval(4); #4ms delay for the code to be recorded by brainvision; 2ms->500hz sampling rate so 2 samples available | |||
Oport.send_code(0); #Back to 0; now ready to send a new code | |||
</syntaxhighlight> | |||
In BITSI extended protocol the reset is done by a specific time set with the capital "T". | |||
BITSI extended: | |||
<syntaxhighlight lang="python" line> | |||
#TemplateINFO.pcl | #TemplateINFO.pcl | ||
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#TemplateSUBS.pcl | #TemplateSUBS.pcl | ||
Oport. | #only specify this ones, then its valid for the full experiment | ||
Oport.send_string("T"); #Specify the pulse length time | |||
Oport.send_code( | Oport.send_code(4); #4ms delay for the code to be recorded by brainvision; 2ms->500hz sampling rate so 2 samples available | ||
Oport.send_string("P"); #Specify its a pulse you want to send out | |||
Oport.send_code(100); #This is your marker code, range code 1-255 | |||
#Now it resets itself automatically to 0 after the specified time | |||
</syntaxhighlight> | |||
== Python == | == Python == | ||
<syntaxhighlight lang="python" line> | |||
#!/usr/bin/env python | #!/usr/bin/env python | ||
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bb.sendMarker(100) #This is your marker code, range code 1-255 | bb.sendMarker(100) #This is your marker code, range code 1-255 | ||
core.wait(0.002) #2ms delay for the code to be recorded by brainvision; 2ms->500hz sampling rate | core.wait(0.002) #2ms delay for the code to be recorded by brainvision; 2ms->500hz sampling rate | ||
bb.sendMarker(0) #Back to 0; now ready to send a new code</ | bb.sendMarker(0) #Back to 0; now ready to send a new code | ||
</syntaxhighlight> | |||
== BrainVision Recorder - Default Workspace == | == BrainVision Recorder - Default Workspace == | ||
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Links and Documentation For the standard 32 and 64 electrode setup, workspaces are available here. | Links and Documentation For the standard 32 and 64 electrode setup, workspaces are available here. | ||
Find the Brainvision analyzer manual here | Find the Brainvision analyzer manual here {{Download link|media=actiCAP-32Ch-standard workspace DCC_new.zip}} | ||
Find the Brainvision analyzer manual here | Find the Brainvision analyzer manual here {{Download link|media=actiCAP-64Ch-standard workspace DCC_new.zip}} | ||
Please check the BrainVision Recorder manual (English / German) for more in depth details. | Please check the BrainVision Recorder manual (English / German) for more in depth details. | ||
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First press "Scan for Amplifiers". BrainVision Recorder will give an overview of the amplifiers the software is communicating with. | First press "Scan for Amplifiers". BrainVision Recorder will give an overview of the amplifiers the software is communicating with. | ||
The following default DCC settings are recommended for all channels. | The following default DCC settings are recommended for all channels. | ||
{| | |||
{| class="wikitable" | |||
|- | |- | ||
!Setting | |||
!Default | |||
|- | |- | ||
|Nr. of channels to be used | |Nr. of channels to be used | ||
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The following default settings are recommended for all channels: | The following default settings are recommended for all channels: | ||
{| | {| class="wikitable" | ||
|- | |- | ||
!Setting | |||
!Default DCC settings | |||
|- | |- | ||
|Enable filters | |Enable filters | ||
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It is recommended to set the filters in exactly the same way as the "Raw Data Saving Filters" so that you see is what you get. | It is recommended to set the filters in exactly the same way as the "Raw Data Saving Filters" so that you see is what you get. | ||
Thus, the following default settings are recommended: | Thus, the following default settings are recommended: | ||
{| | {| class="wikitable" | ||
|- | |- | ||
!Setting | |||
!Default | |||
|- | |- | ||
|Enable filters | |Enable filters | ||