analysis:amplipex
Differences
This shows you the differences between two versions of the page.
|
analysis:amplipex [2014/01/08 10:59] mvdm created |
analysis:amplipex [2018/07/07 10:19] |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | ====== Loading Amplipex data into fieldtrip ====== | ||
| - | 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. | ||
| - | |||
| - | To load data: | ||
| - | |||
| - | <code matlab> | ||
| - | 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 | ||
| - | </code> | ||
| - | |||
| - | To convert into a fieldtrip data structure: | ||
| - | |||
| - | <code matlab> | ||
| - | data_ft = AMPX_makeft(data); | ||
| - | </code> | ||
| - | |||
| - | Make trials (note, this will require an event file to have been created previously, Eric to update explanation of this): | ||
| - | |||
| - | <code matlab> | ||
| - | %% 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); | ||
| - | </code> | ||
| - | |||
| - | Now you can do the usual ft analysis stuff: | ||
| - | |||
| - | <code matlab> | ||
| - | %% | ||
| - | cfg = []; % start with empty cfg | ||
| - | cfg.output = 'pow'; | ||
| - | cfg.channel = '10'; | ||
| - | cfg.method = 'mtmconvol'; | ||
| - | cfg.taper = 'hanning'; | ||
| - | cfg.foi = 1:1:100; % frequencies of interest | ||
| - | cfg.t_ftimwin = ones(size(cfg.foi)).*0.5; % window size: fixed at 0.5s | ||
| - | cfg.toi = -1.5:0.05:2.5; % times of interest | ||
| - | |||
| - | </code> | ||
analysis/amplipex.txt ยท Last modified: 2018/07/07 10:19 (external edit)
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International
