[Mne_analysis] mne.minimum_norm.source_induced_power

[Demanuele, Charmaine]

Hi Alex,

Thank you, that’s very helpful!

Best,

Charmaine

On Apr 12, 2016, at 1:23 PM, Alexandre Gramfort <alexandre.gramfort at telecom-paristech.fr<mailto:alexandre.gramfort at telecom-paristech.fr>> wrote:

hi,

see

https://github.com/mne-tools/mne-python/blob/master/mne/minimum_norm/time_frequency.py#L369

if no baseline is set then you get raw power.

when using logratio it is the log of the ratios so it's not really dB either.

hope this helps

Alex

On Tue, Apr 12, 2016 at 6:49 PM, Demanuele, Charmaine
<CDEMANUELE at partners.org<mailto:CDEMANUELE at partners.org>> wrote:
Hi MNE Experts,

I am using the python function source_induced_power, having the following
github code:

https://github.com/mne-tools/mne-python/blob/master/mne/minimum_norm/time_frequency.py

What are the units of the power output values? Are they in dB? It seems that
power is in dB only when the values are baseline corrected with a rescaling
option of ‘log ratio’.

Can you please confirm if this is actually the case since this is not
documented?

Thanks so much,

Charmaine



--------------------------------------------------------------------------------------
Charmaine Demanuele, Ph.D.
Psychiatric Neuroimaging
Athinoula A. Martinos Center for Biomedical Imaging
Harvard Medical School
149 13th Street
Charlestown Navy Yard
Charlestown, MA 02129
phone: +1617-724-3170
email: charmd at nmr.mgh.harvard.edu



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--------------------------------------------------------------------------------------
Charmaine Demanuele, Ph.D.
Psychiatric Neuroimaging
Athinoula A. Martinos Center for Biomedical Imaging
Harvard Medical School
149 13th Street
Charlestown Navy Yard
Charlestown, MA 02129
phone: +1617-724-3170
email: charmd at nmr.mgh.harvard.edu<mailto:charmd at nmr.mgh.harvard.edu>



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