[Eeglablist] EEGLab Latencies

[Tarik S Bel-Bahar]

Hello Patrick, some notes below that should be of use to you, cheers.

*For accessing latencies, you should be able to just review your
EEG.data variable, and take specific times or chunks of time from your
data easily. EEG.data is in "samples" time, whatever sample-rate the
data was collected at. Also,if you have events, review the EEG.event
information in the EEG matlab variable.*Times in eeglab are usually in
seconds, milliseconds, and samples - it also depends on which function
is being used and whether the data is epoched. You can review the
documentation for each function you are using, or run the function
from the gui, and then review the output of typing eegh into the
command window.

*try to open/scroll through the data in eegplot via the gui, and you
should see the any events and what times they are at.Therein you can
also select data for removal (for example), and then type eegh, and
review how eeglab accesses the times in the data. See also the Select
Data menu option.

*open the Edit Event Values in the GUI, you should be able to review
any events and latencies in your data, including events that you add.

*If you have events, use the Edit Event Values gui to do a practice
step of adding or removing an event, and then review the command by
looking at the eeglab history (type eegh in command line after running
the GUI). This will tell you whether you need to specify your
latencies in samples or seconds.

*last, If you haven't had a chance to, run through the online
tutorials on basic aspects of eeglab, including specific sections on
getting events and latencies information. This is useful for any basic
eeglab user. also try to google eeglablist plus "events" and/or
"latencies" and you will find a many past messages on these topics.