CortecSurgicalProtocols

2023-07-02T17:07:47Z

Pbrunner: Pbrunner moved page CortecSurgicalProtocols to CortecExperience

#REDIRECT [[CortecExperience]]

CortecExperience

2023-07-02T17:07:47Z

Pbrunner: Pbrunner moved page CortecSurgicalProtocols to CortecExperience

This article presents a brief introduction to surgical protocols for the implantation of the CorTec Brain Interchange. The main objective is to introduce the essential surgical considerations for implanting this device in different animal models.

=Canine Surgical Procedure=
Download the [https://bci2000.org/downloads/doc/Canine_Cortec_Surgical_Protocol.pdf surgical protocol here].

CortecExperience

2023-07-02T17:00:49Z

Pbrunner:

2020-03-06T16:24:31Z

Pbrunner:

==Synopsis==
[[File:actiCHamp_Plus.png|right|300px|caption]]
This module allows BCI2000 to collect data from Brain Vision's actiCHamp Plus amplifier. The actiCHamp Plus can be used with passive and active electrodes and is capable of reading from 32 up to 160 channels. To accomidate additional channels (ie. 64-160), additional modules are installed on the top of amp. The amplifier also has 8 auxiliary channels for gathering data from additional physiological sensors at up to 100kHz. The amplifier is powered by a lithium-ion battery pack to ensure long recording times. The amplifier is connected the computer running BCI2000 via USB. Note, the amplifier module must be plugged into the battery pack to function correctly.

Note: This source module is only available on Windows Machines.

==Use==
This module is included in the contributions section of BCI2000. It can be included by enabling the <code>BUILD_CONTRIB</code> in CMAKE before compiling BCI2000. After compiling, in the <code>BCI2000/prog</code> directory, there will be an executable called <code>actiCHampPlus.exe</code>. To then run BCI2000 with the executable, add <code>Start executable actiCHampPlus</code> to your batch file.

==Known Issues==
After the initial compile of the source module, there is sometimes an error that reads ''"No actiCHampPlus devices found. Try unplugging actiChampPlus and restarting BCI2000"''. To fix this error, go to <code>BCI2000\src\contrib\SignalSource\actiCHampPlus\lib\dylib\<x64/x86>\</code>, copy the file <code>ActiChamp_<x64/x86>.dll</code> and paste it in the <code>BCI2000\prog</code> directory. The file will already exist in that folder so when prompted, replace it.

==Versioning==
===Author===
Alex Belsten (belsten@neurotechcenter.org)

===Source Code Revisions===
*Initial development: 6037
*Tested under: 6039
*Known to compile under: 6064
*Broken since: N/A

==Parameters==
===SourceCh===
The number of channels that will be recorded from (EEG and auxiliary). Set this parameter to auto to automatically make the parameter equal to the ''TotalEEGChannels'' plus the number of elements in the ''AUXChList'' parameters.

===ChannelNames===
Names of each channel. If set to auto, the default is "Ch<#>" and "Aux<#>"

===AUXChList===
List of auxiliary channels to use. This parameter also defines the order in which BCI2000 stores and presents data.

===TotalEEGChannels===
Total number of EEG channels to record from.

===SampleBlockSize===
Number of samples that are transmitted at a time.

===HardwareSamplingRate===
Sampling at which the actiChamp is run. The actiChamp Plus can be run at three different frequencies: 10kHz, 50kHz and 100kHz.

===SubSampleDivisor===
Factor that decimates the hardware sampling rate. The hardware sampling rate is divided by this value to yield the actual sampling rate. This parameter has seven values: 1, 2, 5, 10, 20, 50, and 100.

===SamplingRate===
This parameter is defined by the hardware sampling rate and sub sample divisor. This parameter should always be set to 'auto'.

===actiCHampAmplifierID===
Index of the actiChamp Plus. For systems with one actiChamp Plus device, this parameter should be 0.

===AcquisitionMode===
1. Normal signal acquisition: Once connection to amplifier is established, data will be passed from the amplifier to BCI2000 normally.

2. Impedance measurement: Once connection to amplifier is established, BCI2000 will present the impedance for all channels. This data will be presented in a pop-up window for all of the EEG channels and the ground. Data will then be passed from the amplifier to BCI2000 normally. If active electrodes are being used, each electrode will illuminate an LED corresponding to the amount of impedance. If the impedance is low the electrode LED will be green, else it will be yellow. If the impedance is high the LED will be red.

==See also==
[[User Reference:Filters]], [[Contributions:ADCs]]

[[Category:Contributions]][[Category:Data Acquisition]]

2018-11-28T18:32:34Z

Pbrunner: /* Synopsis */

==Synopsis==
An extension that records video from one or more webcams to an avi file, and stores frame numbers as state variables.

==Location==
http://{{SERVERNAME}}/svn/trunk/src/contrib/Extensions/WebcamLogger

==Versioning==
===Authors===
Adam Wilson (adam.wilson@uc.edu) & Alex Belsten (belsten@neurotechcenter.org)
===Version History===
07/06/2011 - Full commit with support for MSVC and MinGW.

07/13/2011 - Bugfixes

11/28/2018 - Updated openCV to v2.4.3 for x32/x64 Windows and added functionality for recording from multiple cameras
===Source Code Revisions===
*Initial development: --
*Tested under: 5828
*Known to compile under: 5828
*Broken since: 5828 for MinGW

===TODO===
Update MinGW openCV library

==Functional Description==
For many experiments, visual information about how a subject is behaving during an experiment is desired. This extension acquires video from most webcams, and writes to an AVI video file. It also records the current frame number as a state variable, so that the video can be synchronized with brain data with a resolution of the block size. Other options include the ability to overlay the date and time directly on the video (useful for long-term monitoring), and time decimation (i.e., save every Nth frame).

PROTIP: This module can also be used to perform screen capture with the proper virtual screencast webcam driver. Dubious website, but this product works well: http://www.pcwinsoft.com/screencamera/

==Integration into BCI2000==
Compile the extension into your source module by enabling contributed extensions in your CMake configuration. You can do this by going into your root build folder and deleting <code>CMakeCache.txt</code> and re-running the project batch file, or by running <code>cmake -i</code> and enabling '''BUILD_WEBCAMLOGGER'''. Once the extension is built into the source module, enable it by starting the source module with the <code>--LogWebcam=1</code> command line argument.

==Usage==
Webcams should be installed and configured per the device instructions. The Webcam logger uses the OpenCV (version 2.4.3) library for display and saving.

Camera options are found in the ''Source'' tab of the Configuration window.

==Parameters==
The Webcam logger is configured in the ''Source'' tab within the WebcamLogger section. The configurable parameters are:

*<code>LogWebcam</code> - Enables/Disables logging of Webcam states.
*<code>CameraNumber</code> - Used to select one camera to record from on systems with multiple cameras. Use value 0 for the default camera.
*<code>RecordAll</code> - Enables the recording of cameras from <code>StartIndex</code> to <code>EndIndex</code>.
*<code>StartIndex</code> - Index to start searching for cameras at.
*<code>EndIndex</code> - Index to stop searching for cameras at.
*<code>Decimation</code> - The decimation factor for saving and viewing video; the logger saves/displays every Nth frame.
*<code>DateTimeLocation</code> - The location of the date/time overlay in saved video (0: none, 1: UpperRight, 2: UpperLeft, 3: LowerRight, 4: LowerLeft).
*<code>DisplayStream</code> - Display the each connected cameras stream. Display stream is identical to what is being recorded in the .avi file.
*<code>SelectCodec</code> - Use OpenCV's GUI for selecting codecs available on system. Each connected camera will prompt for a codec to be selected. The default codec is DIVX.

Video is saved with a resolution of the camera being used.

==Event Variables==

===WebcamFrame<0-n>===
The frame number of the video recorded on camera with index i. i must be less than or equal to n due to the nature of event declarations. The default value of n is 3, allowing for the recording of up to 4 cameras. To record from more cameras, change the <code>NUM_OF_WEBCAM_EVENTS</code> macro in WebcamLogger.cpp to to number of cameras you want to record from and recompile. Event values can be used to synchronize the video with the recorded neural data. It is a 24-bit value, allowing 16,777,216 frames before overflowing. If the webcam can capture at 30 frame/sec, and is decimated at a factor of 5 (i.e., 6 frames/sec), this allows more than a month of video before it will go back to frame 0. In other words, this should not be an issue for most users.

==See also==
[[User Reference:Logging Input]], [[Contributions:Extensions]], [[Programming Reference:Events]]

[[Category:Contributions]][[Category:Extension]]

Contributions:WebcamLogger

2018-11-28T18:31:53Z

Pbrunner: /* Parameters */

==Synopsis==
A Extension that records video from one or more webcams to an avi file, and stores frame numbers as state variables.

==Location==
http://{{SERVERNAME}}/svn/trunk/src/contrib/Extensions/WebcamLogger

==Versioning==
===Authors===
Adam Wilson (adam.wilson@uc.edu) & Alex Belsten (belsten@neurotechcenter.org)
===Version History===
07/06/2011 - Full commit with support for MSVC and MinGW.

07/13/2011 - Bugfixes

11/28/2018 - Updated openCV to v2.4.3 for x32/x64 Windows and added functionality for recording from multiple cameras
===Source Code Revisions===
*Initial development: --
*Tested under: 5828
*Known to compile under: 5828
*Broken since: 5828 for MinGW

===TODO===
Update MinGW openCV library

==Functional Description==
For many experiments, visual information about how a subject is behaving during an experiment is desired. This extension acquires video from most webcams, and writes to an AVI video file. It also records the current frame number as a state variable, so that the video can be synchronized with brain data with a resolution of the block size. Other options include the ability to overlay the date and time directly on the video (useful for long-term monitoring), and time decimation (i.e., save every Nth frame).

PROTIP: This module can also be used to perform screen capture with the proper virtual screencast webcam driver. Dubious website, but this product works well: http://www.pcwinsoft.com/screencamera/

==Integration into BCI2000==
Compile the extension into your source module by enabling contributed extensions in your CMake configuration. You can do this by going into your root build folder and deleting <code>CMakeCache.txt</code> and re-running the project batch file, or by running <code>cmake -i</code> and enabling '''BUILD_WEBCAMLOGGER'''. Once the extension is built into the source module, enable it by starting the source module with the <code>--LogWebcam=1</code> command line argument.

==Usage==
Webcams should be installed and configured per the device instructions. The Webcam logger uses the OpenCV (version 2.4.3) library for display and saving.

Camera options are found in the ''Source'' tab of the Configuration window.

==Parameters==
The Webcam logger is configured in the ''Source'' tab within the WebcamLogger section. The configurable parameters are:

*<code>LogWebcam</code> - Enables/Disables logging of Webcam states.
*<code>CameraNumber</code> - Used to select one camera to record from on systems with multiple cameras. Use value 0 for the default camera.
*<code>RecordAll</code> - Enables the recording of cameras from <code>StartIndex</code> to <code>EndIndex</code>.
*<code>StartIndex</code> - Index to start searching for cameras at.
*<code>EndIndex</code> - Index to stop searching for cameras at.
*<code>Decimation</code> - The decimation factor for saving and viewing video; the logger saves/displays every Nth frame.
*<code>DateTimeLocation</code> - The location of the date/time overlay in saved video (0: none, 1: UpperRight, 2: UpperLeft, 3: LowerRight, 4: LowerLeft).
*<code>DisplayStream</code> - Display the each connected cameras stream. Display stream is identical to what is being recorded in the .avi file.
*<code>SelectCodec</code> - Use OpenCV's GUI for selecting codecs available on system. Each connected camera will prompt for a codec to be selected. The default codec is DIVX.

Video is saved with a resolution of the camera being used.

==Event Variables==

===WebcamFrame<0-n>===
The frame number of the video recorded on camera with index i. i must be less than or equal to n due to the nature of event declarations. The default value of n is 3, allowing for the recording of up to 4 cameras. To record from more cameras, change the <code>NUM_OF_WEBCAM_EVENTS</code> macro in WebcamLogger.cpp to to number of cameras you want to record from and recompile. Event values can be used to synchronize the video with the recorded neural data. It is a 24-bit value, allowing 16,777,216 frames before overflowing. If the webcam can capture at 30 frame/sec, and is decimated at a factor of 5 (i.e., 6 frames/sec), this allows more than a month of video before it will go back to frame 0. In other words, this should not be an issue for most users.

==See also==
[[User Reference:Logging Input]], [[Contributions:Extensions]], [[Programming Reference:Events]]

[[Category:Contributions]][[Category:Extension]]