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Reference

analysis:amplipex

This is an old revision of the document!

Note: as of Jan/2014, make sure you use the APX_devel branch on GitHub to get the latest version. At some point this will be merged back into master.

channels_to_load = [10:13]; % specify channels in the APX data file to load
data = AMPX_loadData('R041-2013-08-06.dat',channels_to_load,20); % note decimation factor of 20

To convert into a fieldtrip data structure:

data_ft = AMPX_makeft(data);

Make trials (note, this will require an event file to have been created previously, Eric to update explanation of this):

%% trl
cfg = [];
cfg.trialfun = 'ft_trialfun_AMPXsquareTrack';
cfg.trialdef.hdr = data.hdr;
cfg.trialdef.pre = 2;
cfg.trialdef.post = 3;

cfg.trialdef.eventtype = 'nose_in_nofires'; % could be 'nosepoke', 'reward', 'cue'

[trl, event] = ft_trialfun_AMPXsquareTrack(cfg);
cfg.trl = trl;

data_trl = ft_redefinetrial(cfg,data_ft);

Now you can do the usual ft analysis stuff:

%%
cfg.toi          = -1.5:0.05:2.5; % times of interest