Hello!

I have an event-related design and have 7 conditions and 1 run (concatenated from 2 runs) for each subject. I'm using batch code to run my analyses. I've been able to load the conditions names just fine, but I'm having trouble loading in the onsets and durations.

I don't get any errors, but when the GUI opens up to SETUP --> Conditions, I see that the "Condition Definition" is still "condition spans the entire session". What is the batch command to change this to "specify blocks/events within selected session." Also, how can I load in my specific onsets and durations from a .mat file?

This is what I have for my batch code so far:

------------------------
% Load onsets mat

load([logDir,'BAC001_onsets_icontext_basic.mat']); % Loads subjects conditon names and onsets (duration is 0)
ncon=length(CondNames); %7 condis
nses = 2; % 2 runs but need to concatenate to just one
onsets=onsets_basic;
N_EPIs_run=313; %number EPIs per run
r=1; %1 run sicne concatenated
C=0;

%each run modelled, set Conditons and onsets

for Con=1:length(CondNames)
if nses==2
onsets_concat=[onsets{1,Con},onsets{2,Con}+TR*N_EPIs_run ]; %concat the onsets
else
onsets_concat=[onsets{1,Con} ]; %concat the onsets
end
if isempty([onsets_concat])==0 && length([onsets_concat])>3 %if not empty and enough trials
disp(CondNames{Con});
C=C+1; %count upwards
batch.Setup.conditions.names{Con}=CondNames{Con};
batch.Setup.conditions.onsetss{ncon}{nsub}{nses}=abs(onsets_concat);
batch.Setup.conditions.durationss{ncon}{nsub}{nses}=0;
else
error([CondNames{Con}, ' EMPTY or less than 3 trials across runs!!'])
end
end
------------------------

Any help would be greatly appreciated - thank you!

Hi Alfonso, 

Thanks so much for your quick reply! When I try to run the same code, but with two subjects with 2 sessions each, the GUI opens just fine, with both subjects added, but only 1 session gets added (with no onsets or durations) and I get a CONN error that reads:

--------------
ERROR DESCRIPTION:

Undefined function 'eq' for input arguments of type 'cell'.
Error in conn (line 3658)
if ~all(size(ko{1})==size(CONN_x.Setup.conditions.values{nsub}{ncondition}{nses}{1})) || ~all(all(ko{1}==CONN_x.Setup.conditions.values{nsub}{ncondition}{nses}{1})), ok(1)=0; end;
Error in conn (line 1499)
[varargout{1:nargout}]=conn('gui_setup',varargin{3:end});
Error in conn_menumanager (line 120)
feval(CONN_MM.MENU{n0}.callback{n1}{1},CONN_MM.MENU{n0}.callback{n1}{2:end});
CONN19.b
SPM12 + DAiSS DEM FieldMap MEEGtools
Matlab v.2019b
project: CONN19.b
--------------

Here is my current code. Do you know how I can edit it to work with CONN?

--------------
nsubjects = 2;
nsessions = 2;
nconditions = 7;
nses = 2; % 2 runs but need to concatenate to just one

conditions=cellstr(conn_dir('*_onsets_icontext_basic.mat')); % Load each subject's condition names, onsets, & durations file
for Con=1:length(nconditions)
for nsub = 1:nsubjects
load(conditions{nsub});
for nses = 1:nsessions
onsets_basic{nses,Con} = abs(onsets_basic{nses,Con});
batch.Setup.conditions.names{Con}=CondNames{Con};
batch.Setup.conditions.onsets{Con}{nsub}{nses}=onsets_basic;
batch.Setup.conditions.durations{Con}{nsub}{nses}=0;
end
end
end
-------------- 

Hi Alfonso,

Thanks! This loaded in the first session for the first condition for both subjects! However, for some reason, it's not adding in all 7 conditions (only 1) and it's not adding in the second session. I'm attaching one subject's condition/onset .mat file for your reference (I'm not able to attach both subjects' data, only one). Do you know what the problem might be?

Thank you!