Biopac 数据导入 matlab 处理方法

第一步：在 AcqKnowledge 软件中，将数据通道的 mark 信息导入到 Graph，并将数据存储为 acq3 的格式

第二步：MATLAB中读取acq3文件脚本

clc
clear
%%%所有被试这一层路径
pathsub = fullfile(fileparts(pwd),'data1_origin');
dirsub = dir(pathsub);
namesub={dirsub.name};
for nsub = 3:length(namesub)%%%每个被试这一层路径pathdata = fullfile(pathsub,namesub{nsub});dirdata = dir(pathdata);namedata = {dirdata.name};for ndata = 3:length(namedata) acq_name = fullfile(pathdata,namedata{ndata});acq=load_acq(acq_name);marker_scan=[];marker_scan(1,:)=acq.markers.lSample(1,:);marker_name=acq.markers.szText;%% 将文本转为数字 segment -> 555[~,idx]=ismember(marker_name,{'Segment 1','Segment 2','Segment 3'});%a=find(idx~=0);if isempty(a)==0for k=1:length(a)marker_name{1,a(k)}='555';endendmarker_name=str2num(char(marker_name));marker_scan(2,:)=marker_name;marker_scan=transpose(marker_scan);% 删除静息 mark 和分段 markb=find(marker_scan(:,2) == 555);b=sort(b,'descend');for n_b=1:length(b)marker_scan(b(n_b),:)=[];endmarker_time=marker_scan;namesave = namedata{ndata}(1:end-4);if ~exist(fullfile(fileparts(pwd),'data2_mat',namesub{nsub}),'dir')mkdir(pathsave);endpathsave = fullfile(fileparts(pwd),'data2_mat',namesub{nsub},strcat(namesave,'.mat'));save(pathsave, 'acq', 'marker_time');end
end