Importing event markers into Brainstorm

[Raymundo.Cassani]

Hi @AnishSingh27,

@AnishSingh27

HOWEVER, we were unable to determine how to add the markers into brainstorm. Originally, we stored the markers + Data in the fieldtrip format as shown below:

AFAIK, in FieldTrip the data and events are two separated structures.
So, reading this custom merged structure is not supported.

@AnishSingh27

Do we have to store the markers as a separate file and import it after importing our data?

Yes, that will be the straight forward way to do it.

@AnishSingh27

If so what is the standard way to format the markers so they can be read by brainstorm?

Brainstorm support multiple formats for events. See here.
Given that you have simple events (only label and time of occurrence), .csv is a good option:

fid = fopen('events.csv','w');
num_events = length(combined_idx_sorted);
for i = 1:num_events
  fprintf(fid, '%s, %g, 0\n', combined_names_sorted{i}, ft_data.time{1}(combined_idx_sorted(i)));     
end
fclose(fid);

Then you can import events from that file.

• In the GUI:
  Record tab > (Event section) File > Add events from file

• Or with a process:
  Events > Import from file