Maintrials2 present the other stimulus. Tracker.sendmessage('SYNCTIME') mark the time we presented the stimulus. Maintrials1.present() present the stimulus. For ease of use, these EDFEye_tracker EyeLink = new eye_tracker ('PresLink') tracker.setparameter('openedffile',edfname) tracker.setrecording(true) start recording.

During the time between start_tracking and stop_tracking, the host PC displays that the link is open, yet it states to be 'offline'.After I run the experiment, I get the following error message:During eye tracker::send_command the eye tracker extension returned the following error: 80070057Referring to the line 'EyeLink.send_command('close_data_file ' + edfFileName'If anybody knows how I can get the eye tracker to start the calibration and to record and store the data in the edf-file, I would be most grateful for an answer. EdfParser is a MatLab class that handles routines for parsing and processing data files generated by the SR-Research Eyelink eyetracker (.EDF).EyeLink.send_command('open_data_file ' + edfFileName) EyeLink.send_command('screen_pixel_coords = 0 0 1400 1050') # send resolution to eye tracker hostEyeLink.send_string('FRAMERATE 150') # send refresh rate to eye tracker hostEyeLink.send_command('sample_rate = 1000') # set sampling rate in hzEyeLink.send_command('binocular_enabled = NO') EyeLink.send_command('file_sample_data = GAZE,AREA,BUTTON,INPUT') # determine edf file contentsEyeLink.send_command('file_event_data = GAZE,GAZERES,AREA,HREF,VELOCITY') EyeLink.send_command('file_event_filter = LEFT,RIGHT,FIXATION,SACCADE,BLINK,MESSAGE,BUTTON,INPUT') EyeLink.send_command('calibration_type = HV9') # enable 9 point calibrationEyeLink.send_command('enable_automatic_calibration = NO') # enable manual calibrationEyeLink.send_command('recording_parse_type = GAZE') # parse events based on gaze dataEyeLink.calibrate(et_calibrate_default, 0.0, 0.0, 0.0) # start calibration routineEyeLink.send_command('close_data_file ' + edfFileName) # close edf fileEyeLink.send_command('receive_data_file ' + edfFileName + 'C:\Users\Nutzer\Desktop\Anne_Tracker_Exp\logfiles\' + edfFileName) # retrieve edf fileHowever, the send_string command is not working and the calibration doesn't start automatically. Transfer the edf file.Preset string edfFileName = '8characters.edf' # only name (maximally 8 characters) +.

Synctime Edf Eyelink