I'm considering using PsPM for analysing skin conductance data in a study where the stimuli are emotional pictures displayed every 6s with a 2s white screen between each.
The hardware we have at my hospital is AD instruments, so I get ".adicht" files from Labchart software.
I understood that the only way to use Pspm is to export Labchart files to Matlab files and then import them.
The problem is : on the Pspm manual from January 2015 it's written that "at the moment you can't import event markers from matlab files". Is it still the case ?
In fact : I need theses markers to get the average skin conductance from different pictures.
Is there any solutions ?
Best regards
Guillaume
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There is a difference between importing Matlab files and importing Labchart data from (exported) Matlab files. You will see in the import is a distinction between "import from Matlab" and "import matlab-exported Labchart". Therefore, importing event markers from Matlab files which are exported Labchart data sets should work.
Ensure to import more channels than only a marker channel, otherwise you will encouter a bug, which is fixed in future releases. If you are required to import marker channels only, download the files scr_get_labchartmat_ext.m and scr_get_labchartmat_in.m from here https://sourceforge.net/p/pspm/svn/HEAD/tree/trunk/ and replace them accordingly in your PsPM folder.
best regards
Tobias
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Dear Dr Bach,
I'm considering using PsPM for analysing skin conductance data in a study where the stimuli are emotional pictures displayed every 6s with a 2s white screen between each.
The hardware we have at my hospital is AD instruments, so I get ".adicht" files from Labchart software.
I understood that the only way to use Pspm is to export Labchart files to Matlab files and then import them.
The problem is : on the Pspm manual from January 2015 it's written that "at the moment you can't import event markers from matlab files". Is it still the case ?
In fact : I need theses markers to get the average skin conductance from different pictures.
Is there any solutions ?
Best regards
Guillaume
Hi Guillaume
There is a difference between importing Matlab files and importing Labchart data from (exported) Matlab files. You will see in the import is a distinction between "import from Matlab" and "import matlab-exported Labchart". Therefore, importing event markers from Matlab files which are exported Labchart data sets should work.
Ensure to import more channels than only a marker channel, otherwise you will encouter a bug, which is fixed in future releases. If you are required to import marker channels only, download the files scr_get_labchartmat_ext.m and scr_get_labchartmat_in.m from here https://sourceforge.net/p/pspm/svn/HEAD/tree/trunk/ and replace them accordingly in your PsPM folder.
best regards
Tobias