If you have questions about the use of FieldTrip, please ask them on the email discussion list. The developers in general do not have time to address individual’s questions. The community at large includes a much broader pool of expertise w.r.t. neuroscientific topics, experimental designs, specific data acquisition systems, and analysis strategies. Also, by sharing the questions and answers on a public forum, many more people benefit.
If you get a MATLAB error when using FieldTrip and you suspect that it is not due to you specifying the incorrect options to the function, but that it is due to a problem in the implementation of the software, please report it as an issue on GitHub.
For questions that are not suitable for the public email list or as GitHub issue, e.g., discussing potential contributions to the toolbox or requests for organizing a local workshop, you can send an email to Robert Oostenveld (robert.oostenveld at donders.ru.nl) or Jan-Mathijs Schoffelen (jan.schoffelen at donders.ru.nl).
If needed, you can also contact us via regular mail:
Donders Centre for Cognitive Neuroimaging, c/o Robert Oostenveld
P.O. Box 9101
NL-6500 AH Nijmegen