[Eeglablist] How can I know more about Epoch time range selection in plottting channel spectra and maps
Tarik S Bel-Bahar
tarikbelbahar at gmail.com
Mon Aug 14 11:58:03 PDT 2017
Hello Mohamed, some notes below:
1. test this out with the eegab tutorial data that is ERP, and then compare
the results of EEG vs. ERP button being pressed
Play around with the results of different settings for known data, and it
should start making sense.
2. If your epoch starts at 0s, then you should not be able to feed it -1000
3. Review the documentation for the function your are using (DOC or HELP
and then the name of the function). Review the code too. Also review the
eeglab online documentation for computing channel spectrum. If there is not
enough documentation there, you may want to check with eeglab developers.
4. If your data is ERP, then use ERP. If your data is continuous, then EEG
is probably correct.
5. Consider sending more examples and detais about your tests.
On Sun, Aug 6, 2017 at 10:24 PM, Mohamed Athif <athifrm at gmail.com> wrote:
> When plotting channel spectrum for epoch data, an option is given to
> choose EEG ERP or BOTH. If BOTH option is selected, and a time range is
> given in the first line, is the time range only valid for the ERP? if it is
> valid for EEG as well, How is a time range such as -1000 1000 interpreted
> in terms of EEG which starts from 0s and continues?
> Mohamed Athif
> Undergraduate | Biomedical Engineering
> Secretary | IEEE EMBS Student Branch Chapter at UoM
> Assistant Promotion and Online Media Coordinator | Gavel Club of UoM
> Department of Electronics and Telecommunication Engineering
> University of Moratuwa
> Sri Lanka
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