Fixation

- Subjects Monkey Qu Monkey Bt Monkey Cn

!! Note that, for "FIxation task", we have already merged the data across days !! "Exp date" refers to the date we uploaded the data for Neurotycho. The dates we conducted the experiments were as below; Monkey Qu - 20120417, 20120423, 20120424, 20120426 (4 days) Monkey Bt - 20130708, 20130710, 20130718, 20130723, 20130725, 20130731 (5 days) Monkey Cn - 20140612, 20140613, 20140616 (3 days)

- Data format We prepared 3 kinds of the mat-files for each monkey.

A. "ECoG_chXXX.mat" contains ECoG signal recorded from the channel XXX (XXX = 001-128). Loading each mat file, you'll obtain a matrix "data" that is a 2D matrix of trial*time. Each row is a ECoG signal in one trial starting 1sec before the onset of fixation point (FP). Thus for example, you can draw ERP assigned to the FP onset by plot(mean(data,1)).

B. "info.mat" contains 2 variables "prms" (struct) and "eyeData" (cell). "prms" contains the 2 types of the event stamps, the timing of the fixation start and the reward delivery in each trial. Note that the origin of the time is the FP onset. "eyeData" contains the horizontal and vertical eye positions in each trial. Note that the sampling rate for the eye-positions was 500 Hz, while the sampling rate for ECoG signals was 1 kHz.

C. "elPosition_XX.mat" contains the information about the electrodes-location in monkey XX (XX =Qu, Bt, or Cn). You can see the electrode locations on the brain surface with the code like this; load("elInfo.mat"); figure, imagesc(IMG), axis equal, axis off, hold on; plot(elX, elY, 'ko'); for iCh =1:length(elX) text(elX(iCh),elY(iCh),sprintf('%d',iCh)); end