[Homer-users] Questions about Homer

[gramigna at unicz.it]

Thanks for reply about first and third questions.
About the second question I received informations from Rebecca Dewey.
About HRF, I need to understand if this function is evaluated as average
on total stimuli and the meaning of Plot Probe GUI.
Thanks



> Hi,
>
> I don't think the  current version allows you to visualize different
> conditions on the same figure. What you could do is to first fix the
> y-axis range using the zoom-pan panel and copy the figure for each
> condition (from view copy current plot).
>
> You can simply say no to default process question. The software will load
> default processing options. If you want to generate your own, then you
> need to go tools>processStreamgui, then choose the options you want. Then
> you need to go to file->save process options (*cfg) to save the options as
> a config file. They won't automatically be saved as a separate file
> otherwise, but they will be saved in individual nirs files if you run
> HOMER with your options loaded.
>
> Please visit the following link to have some information on how you can
> get HRF. Please let us know if these tutorials won't be sufficient.
> http://www.nmr.mgh.harvard.edu/PMI/resources/homer2/documentation.htm#tutorials
>
> btw I did not quite understand your second question, sorry.
>
> Hope this helps,
>
> Meryem
>
>
>
>> Dear Expert,
>> I'm performing fNirs analysis using data from Hitachi etg 4000. I
>> converted Hitachi csv file into Homer nirs file Rebecca's
>> Hitachi_2_Homer
>> script. My first problem is to import stimuli (as imposed during Hitachi
>> experiment) directly into Homer file. For this problem, I'm in contact
>> with Rebecca.
>>
>> The first question about Homer sofware is on the possibility to
>> visualize
>> and thus compare, in the same plot windows, HbO (for example) between
>> two
>> experiments (resting and finger tapping).
>>
>> The second question is the following:
>> How is possible to find a correspondence between channels number in pos
>> configuration given from Rebecca to the configurations used in our
>> experiment? (We don't have 3D digitiser).
>>
>> Third question:
>> If my file is imported for the first time in Homer, Software asks me
>> processOpt_default.cfg that I haven't. It is generated after processing
>> data? If yes, is it generated whenever you make changes on processing?
>>
>>
>> Fourth question:
>> I need more information about how HRF is calculated and on the procedure
>> to do it for a new set of data.
>>
>> Thanks
>>
>>
>>
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>> Homer-users at nmr.mgh.harvard.edu
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>>
>>
>>
>
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