[Mne_analysis] Fwd: Plotting power spectra of estimates on mne_analyze

[Daniel G. Wakeman]

Hi Andres,

if you are talking about the hemisphere of the vertices. This will  
depend on your matlab scripts. You should specify and specifically  
choose each hemisphere. I don't have the manual in front of me, but I  
am sure there is a description of the forward matrix structure in it.  
This will tell you exactly how to do what you want. I believe the  
matlab section is chapter 10.

Dan


On 26 Aug 2009, at 01:22, Kyle Lepage wrote:

> Hi Andres, the structure,
>
> raw = fiff_setup_read_raw()
>
> contains the channel names in raw.info.ch_names
>
> For agnostic labeling these names designate left hemisphere and
> right hemisphere using 'lh' and 'rh'.  For this case the first
> half of the channels correspond to the left hemisphere and the
> last half to the right hemisphere.
>
> Best regards,
>
>  Kyle
>
>
> On Tue, 25 Aug 2009, Sarah Steinvorth wrote:
>
>>
>>
>>
>> Begin forwarded message:
>>
>>> From: "Andres Felipe Salazar Gomez" <asalazar at nmr.mgh.harvard.edu>
>>> Date: August 25, 2009 6:29:31 PM EDT
>>> To: "Daniel G. Wakeman" <dgwakeman at gmail.com>
>>> Cc: mne_analysis at nmr.mgh.harvard.edu
>>> Subject: Re: [Mne_analysis] Plotting power spectra of estimates on
>>> mne_analyze
>>>
>>
>>> Thank you Dan,
>>>
>>> I got the power spectrum in source space (in matlab, after  
>>> getting the
>>> estimates).
>>> My problem was that since I used matlab, I did not know which set of
>>> the
>>> calculated power spectra belonged to either the left or the right
>>> group of
>>> vertices (for left and right hemispheres).
>>>
>>> It seems the first half of results belongs to the left hemisphere
>>> and the
>>> second to the right one.
>>> Is this correct?
>>>
>>> Thanks for your comments,
>>>
>>> -- Andrés
>>>
>>>
>>>> Hi Andres,
>>>>
>>>> I'm not sure what you mean by "way to link channels and vertices."
>>>>
>>>> This seems to suggest you created your power spectrum in sensor
>>>> space. Is this true?
>>>>
>>>> If so what did you use the forward matrix for?
>>>>
>>>> If you got the power spectrum values in source space (using some
>>>> inverse
>>> solution), then the solution to your problem is easy. Just use  
>>> one of
>>> the functions below to write those values to either a w file or stc
>>> file.
>>>>
>>>> Dan
>>>> On 25 Aug 2009, at 21:44, Andres Felipe Salazar Gomez wrote:
>>>>
>>>>> Hi MNE users,
>>>>> I want to plot on mne_analyze the power spectrum values of a  
>>>>> set of
>>> estimates obtained from a raw file. I got  the estimates in matlab
>>> using
>>>>> the forward matrix, the raw file and the noise covariance matrix
>>>>> but I
>>> have not been able to create a file that mne_analyze can load and  
>>> plot
>>> on
>>>>> the cortex.
>>>>> I understand mne_write_stc_file (although this one seems to be for
>>>>> time
>>>>> domain files) or mne_write_w_file can help me but I am not sure
>>>>> how to use
>>>>> them since I do not have a way to link channels and vertices.
>>>>> Thank you very much for your help,
>>>>> --
>>>>> Andres F. Salazar
>>>>> Research Technologist
>>>>> Neuroscience Statistics Research Laboratory
>>>>> asalazar at nmr.mgh.harvard.edu
>>>>> 149 13th Street, Room 4005
>>>>> Charlestown, MA  02129
>>>>> _______________________________________________
>>>>> Mne_analysis mailing list
>>>>> Mne_analysis at nmr.mgh.harvard.edu
>>>>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Andres F. Salazar
>>> Research Technologist
>>> Neuroscience Statistics Research Laboratory
>>> asalazar at nmr.mgh.harvard.edu
>>> 149 13th Street, Room 4005
>>> Charlestown, MA  02129
>>>
>>>
>>>
>>> _______________________________________________
>>> Mne_analysis mailing list
>>> Mne_analysis at nmr.mgh.harvard.edu
>>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>>>
>>>
>>
>
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