Matlab Code to Read Attention using Mindwave Mobile
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In neurosky Mindwave mobile and Mindwave ,The unsigned one-byte data reports the current eSense Attention meter of the user, which indicates the intensity of a user’s level of mental “focus” or “attention”, t which occurs during intense concentration and directed (stable) mental activity. Its value ranges from 0 to 100. Distractions, wandering thoughts, lack of focus, or anxiety may lower the Attention meter levels.
Description
Matlab Code to Read Attention using Mindwave mobile
ThinkGear™ is the technology inside every NeuroSky product or partner product that enables a device to interface with the wearers’ brainwaves.The ThinkGear Connector (TGC) runs as a background process on your computer and is responsible for directing headset data from the serial port to an open network socket. It includes the thinkgear module and eeg sensor that touches the forehead (fp1 of the electrode postion recommended by 10/20 electrode system), and the reference points located on the ear clip. Thinkgear module(TGAM1) contains the onboard chip that processes all of the data and provides this data to software and applications in digital form.It is available on both Windows and Macintosh, any language or framework that contains a socket library should be able to communicate with it. Both the raw brainwaves and the eSense Meters (Attention and Meditation) and eyeblink are calculated on the ThinkGear chip.
Demonstration Video
ATTENTION eSense
In neurosky Mindwave mobile and Mindwave ,The unsigned one-byte data reports the current eSense Attention meter of the user, which indicates the intensity of a user’s level of mental “focus” or “attention”, t which occurs during intense concentration and directed (stable) mental activity. Its value ranges from 0 to 100. Distractions, wandering thoughts, lack of focus, or anxiety may lower the Attention meter levels.
By default, output of this Data Value is enabled. It is typically output once a second.
The API declaration for
TG_DATA_ATTENTION = 2; Matlab code to read attention using Mindwave mobile %Clear Screen clc; %Clear Variables clear all; %Close figures close all; %Preallocate buffer data_att = zeros(1,256); %Comport Selection portnum1 = 7; %COM Port # comPortName1 = sprintf('\\\\.\\COM%d', portnum1); % Baud rate for use with TG_Connect() and TG_SetBaudrate(). TG_BAUD_115200 = 115200; % Data format for use with TG_Connect() and TG_SetDataFormat(). TG_STREAM_PACKETS = 0; % Data type that can be requested from TG_GetValue(). TG_DATA_ATTENTION = 2; %load thinkgear dll loadlibrary('Thinkgear.dll'); %To display in Command Window fprintf('Thinkgear.dll loaded\n'); %get dll version dllVersion = calllib('Thinkgear', 'TG_GetDriverVersion'); %To display in command window fprintf('ThinkGear DLL version: %d\n', dllVersion ); % Get a connection ID handle to ThinkGear connectionId1 = calllib('Thinkgear', 'TG_GetNewConnectionId'); if ( connectionId1 < 0 ) error( sprintf( 'ERROR: TG_GetNewConnectionId() returned %d.\n', connectionId1 ) ); end; % Attempt to connect the connection ID handle to serial port "COM3" errCode = calllib('Thinkgear', 'TG_Connect', connectionId1,comPortName1,TG_BAUD_115200, TG_STREAM_PACKETS ); if ( errCode < 0 ) error( sprintf( 'ERROR: TG_Connect() returned %d.\n', errCode ) ); end fprintf( 'Connected. Reading Packets...\n' ); i=0; j=0; %To display in Command Window disp('Reading Brainwaves'); figure; while i < 20 if (calllib('Thinkgear','TG_ReadPackets',connectionId1,1) == 1) %if a packet was read... if (calllib('Thinkgear','TG_GetValueStatus',connectionId1,TG_DATA_ATTENTION ) ~= 0) j = j + 1; i = i + 1; %Read attention Valus from thinkgear packets data_att(j) = calllib('Thinkgear','TG_GetValue',connectionId1,TG_DATA_ATTENTION ); %To display in Command Window disp(data_att(j)); %Plot Graph plot(data_att); title('Attention'); %Delay to display graph pause(1); end end end %To display in Command Window disp('Loop Completed') %Release the comm port calllib('Thinkgear', 'TG_FreeConnection', connectionId1 );
Additional information
Weight | 1.000000 kg |
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