[Eeglablist] "Frequency Smearing" and ERSP graphs

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue May 5 14:12:58 PDT 2015

Dear Steven,

Unfortunately I agree with the reviewer. The choice of parameter for your
ERSP is not optimal.

You can find 2013 EEGLAB workshop materials (pdf) online.
Check out the ones by Tim Mullen for theory and Makoto Miyakoshi for
practical understanding of the EEGLAB parameters for newtimef.


On Sat, May 2, 2015 at 3:24 PM, Steven Pillen <stevendpillen at gmail.com>

> Hello, EEGLAB-List.
> Here are some ERSP graphs included in a manuscript we submitted to a
> publication:
> http://i.imgur.com/KkvAGPA.png
> http://i.imgur.com/iLHeKY9.png
> One of the peer reviewers said that the graph showed "frequency smear",
> and we are not entirely sure what that means.  Is what you see in these
> images unusual?  If there is frequency smearing, what is it, and what can
> we do to correct or account for it?
> Thank you,
> Steven Pillen
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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