Re: [Freesurfer] Xhemi stat questions
If you use
thick = fast_vol2mat(MRIread('file.mgh'));
thick will be a matrix of nsubjects-by-nvertices.
Note that the vertex indices from labels are 0-based whereas matlab
expects 1-based.
doug
On 03/27/2013 09:08 AM, Gabriel Gonzalez Escamilla wrote:
> That makes much more sense than the thing I was looking for.
>
> Now I have a problem reading the lh.lh-rh.thickness.mgh with the
> load_mgh.m function, as I have no idea of how to read it to get the
> vertex by vertex thickness value of each subject.
>
> I tryed as [thick, ~,~,~]=load_mgh('file.mgh',[],[1:nSubjs])
> then reading: subjIDthick=thick(vtxID,1,1,subjID);
> where vtxID es the vertex of the .label file I want, and subjID is the
> number of the subject.
> is that correct?
>
> All this is because I will use it as a covariate in the statistical
> analysis as suggested in
> http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg27129.html
>
>
> Regards,
> Gabriel.
>
>
>
> El 26/03/13, *Douglas N Greve * escribió:
>> Unless you specifically need them for an individual, you should get them
>> from lh.lh-rh.thickness.mgh because that data is sampled onto the
>> symmetric template and so should be unbiased (ie, it will not
>> systematically favor lh or rh).
>> doug
>>
>>
>> On 03/26/2013 12:40 PM, Gabriel Gonzalez Escamilla wrote:
>> > Dear Doug,
>> >
>> > I meant of a given subject,
>> >
>> > But, As I'm thinking about this, I'm wondering if it has sense to have
>> > left and right cortical thickness of my every individual subjects, or
>> > if I should obtain the lh-rh thickness differences for the individuals?
>> >
>> > I suppose that I should read the lh.lh-rh.thickness.mgh created by
>> > mris_preproc to get the average differences in lh-rh hemispheres.
>> >
>> >
>> >
>> > Regards,
>> > Gabriel
>> >
>> >
>> >
>> >
>> > El 25/03/13, *Douglas N Greve * escribió:
>> >>
>> >> Do you mean you want the right hemi thicknesses on the left hemisphere
>> >> of a given subject or on the fsaverage_sym?
>> >> doug
>> >>
>> >>
>> >> On 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote:
>> >> > Thank you, so I'm keeping the one I had.
>> >> >
>> >> > Sorry for my bad explanation. When I do a normal cortical thickness
>> >> > study, I know the average thickness for a label, e.g. cortex,
>> and the
>> >> > values at each vertex of each hemisphere are stored in
>> >> > $subject/surf/?l.thickness. I would like to know if it is
>> possible to
>> >> > obtain the same cortical thickness measure from the lh-rh registered
>> >> > hemispheres of each subject.
>> >> >
>> >> >
>> >> > Regards,
>> >> > Gabriel
>> >> >
>> >> >
>> >> > El 25/03/13, *Douglas N Greve *
>> escribió:
>> >> >>
>> >> >> On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote:
>> >> >> >Thanks a lot for your answer,
>> >> >> >
>> >> >> >I'm sending you attached the diff of the two mris_preproc.
>> >> >> Those differences are just added features and won't change your
>> >> results.
>> >> >> >
>> >> >> >When I wrote CT, I was meaning cortical thickness, as normally
>> this
>> >> >> values are in surf/?h.thickness, But how do I know the
>> >> >> Xhemi-registered thickness values of each subject for lh-rh, or
>> area
>> >> >> or any of those indices?
>> >> >> I'm not sure what you mean. When you run mris_preproc, you specify
>> >> >> whether you want thickness, etc.
>> >> >> doug
>> >> >> >
>> >> >> >Regards,
>> >> >> >Gabriel
>> >> >> >
>> >> >> >
>> >> >> >El 25/03/13, *Douglas N Greve *
>> escribió:
>> >> >> >>
>> >> >> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote:
>> >> >> >>> Dear Doug,
>> >> >> >>>
>> >> >> >>> I've seen that you restore the files to download, for the Xhemi
>> >> >> >>> registration. While I'm checking for the statistical
>> process, I've
>> >> >> >>> seen that the one I have is: Date: 2012/12/06 16:06:52,
>> Revision:
>> >> >> >>> 1.59.2.4, and the one that is on your ftp server is Date:
>> >> 2012/12/06
>> >> >> >>> 16:06:17, Revision: 1.66, So mine is a lower version but
>> >> recent hour,
>> >> >> >>> and the actual is newer version but seems that was created
>> >> before the
>> >> >> >>> one I have. My question is, Which one should I keep?
>> >> >> >>Can you send me a diff of the two files?
>> >> >> >>>
>> >> >> >>> If I change the mris_precproc version. Shall I re-run this
>> step
>> >> >> >>> before statistical analyses, to create a new
>> >> >> lh.lh-rh.thickness.sm00.mgh?
>> >> >> >>>
>> >> >> >>> On the other hand I have some doubts about the statistical
>> >> procedure.
>> >> >> >>> It's supposed that if I apply the Xhemi registration, as
>> >> result the
>> >> >> >>> left and right hemispheres are equals to each other on every
>> >> >> subject, so:
>> >> >> >>>
>> >> >> >>> A) Where can I get the CT values after the Xhemi
>> registration to
>> >> >> >>> FSaverage_sym for the left and right hemispheres?
>> >> >> >>what are CT values?
>> >> >> >>>
>> >> >> >>>
>> >> >> >>> B) Given that I have two groups, Patients and Contr
Re: [Freesurfer] Xhemi stat questions
That makes much more sense than the thing I was looking for.Now I have a problem reading the lh.lh-rh.thickness.mgh with the load_mgh.m function, as I have no idea of how to read it to get the vertex by vertex thickness value of each subject.I tryed as [thick, ~,~,~]=load_mgh('file.mgh',[],[1:nSubjs])then reading: subjIDthick=thick(vtxID,1,1,subjID);where vtxID es the vertex of the .label file I want, and subjID is the number of the subject.is that correct?All this is because I will use it as a covariate in the statistical analysis as suggested in http://www.mail-archive.com/freesurfer@nmr.mgh.harvard.edu/msg27129.htmlRegards,Gabriel.El 26/03/13, Douglas N Greve escribió:Unless you specifically need them for an individual, you should get them from lh.lh-rh.thickness.mgh because that data is sampled onto the symmetric template and so should be unbiased (ie, it will not systematically favor lh or rh).dougOn 03/26/2013 12:40 PM, Gabriel Gonzalez Escamilla wrote:> Dear Doug,>> I meant of a given subject,>> But, As I'm thinking about this, I'm wondering if it has sense to have > left and right cortical thickness of my every individual subjects, or > if I should obtain the lh-rh thickness differences for the individuals?>> I suppose that I should read the lh.lh-rh.thickness.mgh created by > mris_preproc to get the average differences in lh-rh hemispheres. Regards,> Gabriel> El 25/03/13, *Douglas N Greve * escribió: Do you mean you want the right hemi thicknesses on the left hemisphere>> of a given subject or on the fsaverage_sym?>> doug>> On 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote:>> > Thank you, so I'm keeping the one I had.>> >>> > Sorry for my bad explanation. When I do a normal cortical thickness>> > study, I know the average thickness for a label, e.g. cortex, and the>> > values at each vertex of each hemisphere are stored in>> > $subject/surf/?l.thickness. I would like to know if it is possible to>> > obtain the same cortical thickness measure from the lh-rh registered>> > hemispheres of each subject.>> >>> >>> > Regards,>> > Gabriel>> >>> >>> > El 25/03/13, *Douglas N Greve * escribió:>> >> On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote:>> >> >Thanks a lot for your answer,>> >> >>> >> >I'm sending you attached the diff of the two mris_preproc.>> >> Those differences are just added features and won't change your >> results.>> >> >>> >> >When I wrote CT, I was meaning cortical thickness, as normally this>> >> values are in surf/?h.thickness, But how do I know the>> >> Xhemi-registered thickness values of each subject for lh-rh, or area>> >> or any of those indices?>> >> I'm not sure what you mean. When you run mris_preproc, you specify>> >> whether you want thickness, etc.>> >> doug>> >> >>> >> >Regards,>> >> >Gabriel>> >> >>> >> >>> >> >El 25/03/13, *Douglas N Greve * escribió:>> >> >> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote:>> >> >>> Dear Doug,>> >> > >> >>> I've seen that you restore the files to download, for the Xhemi>> >> >>> registration. While I'm checking for the statistical process, I've>> >> >>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision:>> >> >>> 1.59.2.4, and the one that is on your ftp server is Date: >> 2012/12/06>> >> >>> 16:06:17, Revision: 1.66, So mine is a lower version but >> recent hour,>> >> >>> and the actual is newer version but seems that was created >> before the>> >> >>> one I have. My question is, Which one should I keep?>> >> >>Can you send me a diff of the two files?>> >> > >> >>> If I change the mris_precproc version. Shall I re-run this step>> >> >>> before statistical analyses, to create a new>> >> lh.lh-rh.thickness.sm00.mgh?>> >> > >> >>> On the other hand I have some doubts about the statistical >> procedure.>> >> >>> It's supposed that if I apply the Xhemi registration, as >> result the>> >> >>> left and right hemispheres are equals to each other on every>> >> subject, so:>> >> > >> >>> A) Where can I get the CT values after the Xhemi registration to>> >> >>> FSaverage_sym for the left and right hemispheres?>> >> >>what are CT values?>> >> > >> > >> >>> B) Given that I have two groups, Patients and Control, with two>> >> levels>> >> >>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female>> >> >>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that>> >> I can>> >> >>> set the contrasts and fsgd files as with a normal CT analisis, but>> >> >>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to>> >> contain the>> >> >>> left-right differences across subjects, right?>> >> > >> >>> Wich would be the right interpretation? of:>> >> >>The interpretation does not really change because it is a xhemi>> >> analysis>> >> > >> >>> 1) 5 .5 -.5 -.5 0 0 0 0>> >> >>Is the L-R difference between Grp1 and Grp2 different than 0>> >> (regressing>> >> >>out Var1 and gender)>> >> > >> >>> 2) 5 -.5 .5 -.5 0 0 0 0>> >> >>Is the L-R diffe
Re: [Freesurfer] Xhemi stat questions
Unless you specifically need them for an individual, you should get them from lh.lh-rh.thickness.mgh because that data is sampled onto the symmetric template and so should be unbiased (ie, it will not systematically favor lh or rh). doug On 03/26/2013 12:40 PM, Gabriel Gonzalez Escamilla wrote: > Dear Doug, > > I meant of a given subject, > > But, As I'm thinking about this, I'm wondering if it has sense to have > left and right cortical thickness of my every individual subjects, or > if I should obtain the lh-rh thickness differences for the individuals? > > I suppose that I should read the lh.lh-rh.thickness.mgh created by > mris_preproc to get the average differences in lh-rh hemispheres. > > > > Regards, > Gabriel > > > > > El 25/03/13, *Douglas N Greve * escribió: >> >> Do you mean you want the right hemi thicknesses on the left hemisphere >> of a given subject or on the fsaverage_sym? >> doug >> >> >> On 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote: >> > Thank you, so I'm keeping the one I had. >> > >> > Sorry for my bad explanation. When I do a normal cortical thickness >> > study, I know the average thickness for a label, e.g. cortex, and the >> > values at each vertex of each hemisphere are stored in >> > $subject/surf/?l.thickness. I would like to know if it is possible to >> > obtain the same cortical thickness measure from the lh-rh registered >> > hemispheres of each subject. >> > >> > >> > Regards, >> > Gabriel >> > >> > >> > El 25/03/13, *Douglas N Greve * escribió: >> >> >> >> On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote: >> >> >Thanks a lot for your answer, >> >> > >> >> >I'm sending you attached the diff of the two mris_preproc. >> >> Those differences are just added features and won't change your >> results. >> >> > >> >> >When I wrote CT, I was meaning cortical thickness, as normally this >> >> values are in surf/?h.thickness, But how do I know the >> >> Xhemi-registered thickness values of each subject for lh-rh, or area >> >> or any of those indices? >> >> I'm not sure what you mean. When you run mris_preproc, you specify >> >> whether you want thickness, etc. >> >> doug >> >> > >> >> >Regards, >> >> >Gabriel >> >> > >> >> > >> >> >El 25/03/13, *Douglas N Greve * escribió: >> >> >> >> >> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote: >> >> >>> Dear Doug, >> >> >>> >> >> >>> I've seen that you restore the files to download, for the Xhemi >> >> >>> registration. While I'm checking for the statistical process, I've >> >> >>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: >> >> >>> 1.59.2.4, and the one that is on your ftp server is Date: >> 2012/12/06 >> >> >>> 16:06:17, Revision: 1.66, So mine is a lower version but >> recent hour, >> >> >>> and the actual is newer version but seems that was created >> before the >> >> >>> one I have. My question is, Which one should I keep? >> >> >>Can you send me a diff of the two files? >> >> >>> >> >> >>> If I change the mris_precproc version. Shall I re-run this step >> >> >>> before statistical analyses, to create a new >> >> lh.lh-rh.thickness.sm00.mgh? >> >> >>> >> >> >>> On the other hand I have some doubts about the statistical >> procedure. >> >> >>> It's supposed that if I apply the Xhemi registration, as >> result the >> >> >>> left and right hemispheres are equals to each other on every >> >> subject, so: >> >> >>> >> >> >>> A) Where can I get the CT values after the Xhemi registration to >> >> >>> FSaverage_sym for the left and right hemispheres? >> >> >>what are CT values? >> >> >>> >> >> >>> >> >> >>> B) Given that I have two groups, Patients and Control, with two >> >> levels >> >> >>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female >> >> >>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that >> >> I can >> >> >>> set the contrasts and fsgd files as with a normal CT analisis, but >> >> >>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to >> >> contain the >> >> >>> left-right differences across subjects, right? >> >> >>> >> >> >>> Wich would be the right interpretation? of: >> >> >>The interpretation does not really change because it is a xhemi >> >> analysis >> >> >>> >> >> >>> 1) 5 .5 -.5 -.5 0 0 0 0 >> >> >>Is the L-R difference between Grp1 and Grp2 different than 0 >> >> (regressing >> >> >>out Var1 and gender) >> >> >>> >> >> >>> 2) 5 -.5 .5 -.5 0 0 0 0 >> >> >>Is the L-R difference between Males and Females different than 0 >> >> >>(regressing out Var1 and Group) >> >> >>> >> >> >>> 3) 0 0 0 0 .5 .5 -.5 -.5 >> >> >>Does the slope of the L-R difference with Var1 differ between >> Grp1 and >> >> >>Grp2(regressing out gender) >> >> >>> >> >> >>> 4) 0 0 0 0 5 -.5 .5 -.5 >> >> >>Does the slope of the L-R difference with Var1 differ between >> Male and >> >> >>Female(regressing out group) >> >> >>> >> >> >> >> >> >>> >> >> >>> >> >> >>> >> >> >>> Many thanks in advanced. >> >> >>> Gabriel. >> >> >> >> >> >>-- >> >> >>Douglas N.
Re: [Freesurfer] Xhemi stat questions
Dear Doug,I meant of a given subject, But, As I'm thinking about this, I'm wondering if it has sense to have left and right cortical thickness of my every individual subjects, or if I should obtain the lh-rh thickness differences for the individuals?I suppose that I should read the lh.lh-rh.thickness.mgh created by mris_preproc to get the average differences in lh-rh hemispheres. Regards,GabrielEl 25/03/13, Douglas N Greve escribió:Do you mean you want the right hemi thicknesses on the left hemisphere of a given subject or on the fsaverage_sym?dougOn 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote:> Thank you, so I'm keeping the one I had.>> Sorry for my bad explanation. When I do a normal cortical thickness > study, I know the average thickness for a label, e.g. cortex, and the > values at each vertex of each hemisphere are stored in > $subject/surf/?l.thickness. I would like to know if it is possible to > obtain the same cortical thickness measure from the lh-rh registered > hemispheres of each subject.>>> Regards,> Gabriel>>> El 25/03/13, *Douglas N Greve * escribió: On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote:>> >Thanks a lot for your answer,>> >>> >I'm sending you attached the diff of the two mris_preproc.>> Those differences are just added features and won't change your results.>> >>> >When I wrote CT, I was meaning cortical thickness, as normally this >> values are in surf/?h.thickness, But how do I know the >> Xhemi-registered thickness values of each subject for lh-rh, or area >> or any of those indices?>> I'm not sure what you mean. When you run mris_preproc, you specify >> whether you want thickness, etc.>> doug>> >>> >Regards,>> >Gabriel>> >>> >>> >El 25/03/13, *Douglas N Greve * escribió:>> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote:>> >>> Dear Doug,>> > >>> I've seen that you restore the files to download, for the Xhemi>> >>> registration. While I'm checking for the statistical process, I've>> >>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision:>> >>> 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06>> >>> 16:06:17, Revision: 1.66, So mine is a lower version but recent hour,>> >>> and the actual is newer version but seems that was created before the>> >>> one I have. My question is, Which one should I keep?>> >>Can you send me a diff of the two files?>> > >>> If I change the mris_precproc version. Shall I re-run this step>> >>> before statistical analyses, to create a new >> lh.lh-rh.thickness.sm00.mgh?>> > >>> On the other hand I have some doubts about the statistical procedure.>> >>> It's supposed that if I apply the Xhemi registration, as result the>> >>> left and right hemispheres are equals to each other on every >> subject, so:>> > >>> A) Where can I get the CT values after the Xhemi registration to>> >>> FSaverage_sym for the left and right hemispheres?>> >>what are CT values?>> > > >>> B) Given that I have two groups, Patients and Control, with two >> levels>> >>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female>> >>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that >> I can>> >>> set the contrasts and fsgd files as with a normal CT analisis, but>> >>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to >> contain the>> >>> left-right differences across subjects, right?>> > >>> Wich would be the right interpretation? of:>> >>The interpretation does not really change because it is a xhemi >> analysis>> > >>> 1) 5 .5 -.5 -.5 0 0 0 0>> >>Is the L-R difference between Grp1 and Grp2 different than 0 >> (regressing>> >>out Var1 and gender)>> > >>> 2) 5 -.5 .5 -.5 0 0 0 0>> >>Is the L-R difference between Males and Females different than 0>> >>(regressing out Var1 and Group)>> > >>> 3) 0 0 0 0 .5 .5 -.5 -.5>> >>Does the slope of the L-R difference with Var1 differ between Grp1 and>> >>Grp2(regressing out gender)>> > >>> 4) 0 0 0 0 5 -.5 .5 -.5>> >>Does the slope of the L-R difference with Var1 differ between Male and>> >>Female(regressing out group)>> > > > > >>> Many thanks in advanced.>> >>> Gabriel.>> >>-->> >>Douglas N. Greve, Ph.D.>> >>MGH-NMR Center>> >>gr...@nmr.mgh.harvard.edu>> >>Phone Number: 617-724-2358>> >>Fax: 617-726-7422>> >>Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>> >>FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html>> >>Outgoing: >> ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/>> >>___>> >>Freesurfer mailing list>> >>Freesurfer@nmr.mgh.harvard.edu>> >>https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>> >>The information in this e-mail is intended only for the person to >> whom it is>> >>addressed. If you believe this e-mail was sent to you in error and >> the e-mail>> >>contains patient information, please contact the Partners >> Compliance HelpLine at>> >>http://www.partn
Re: [Freesurfer] Xhemi stat questions
I mean of a given subject, I suppose that on the fsaverage_sym, I would read the lh.lh-rh.thickness.mgh. But, As I'm thinking about this, I'm wondering if it has sense, or if I should obtain the lh-rh thickness differences? Nevertheless, I have no idea how to get any of those measurements.Regards,GabrielEl 25/03/13, Douglas N Greve escribió:Do you mean you want the right hemi thicknesses on the left hemisphere of a given subject or on the fsaverage_sym?dougOn 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote:> Thank you, so I'm keeping the one I had.>> Sorry for my bad explanation. When I do a normal cortical thickness > study, I know the average thickness for a label, e.g. cortex, and the > values at each vertex of each hemisphere are stored in > $subject/surf/?l.thickness. I would like to know if it is possible to > obtain the same cortical thickness measure from the lh-rh registered > hemispheres of each subject.>>> Regards,> Gabriel>>> El 25/03/13, *Douglas N Greve * escribió: On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote:>> >Thanks a lot for your answer,>> >>> >I'm sending you attached the diff of the two mris_preproc.>> Those differences are just added features and won't change your results.>> >>> >When I wrote CT, I was meaning cortical thickness, as normally this >> values are in surf/?h.thickness, But how do I know the >> Xhemi-registered thickness values of each subject for lh-rh, or area >> or any of those indices?>> I'm not sure what you mean. When you run mris_preproc, you specify >> whether you want thickness, etc.>> doug>> >>> >Regards,>> >Gabriel>> >>> >>> >El 25/03/13, *Douglas N Greve * escribió:>> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote:>> >>> Dear Doug,>> > >>> I've seen that you restore the files to download, for the Xhemi>> >>> registration. While I'm checking for the statistical process, I've>> >>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision:>> >>> 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06>> >>> 16:06:17, Revision: 1.66, So mine is a lower version but recent hour,>> >>> and the actual is newer version but seems that was created before the>> >>> one I have. My question is, Which one should I keep?>> >>Can you send me a diff of the two files?>> > >>> If I change the mris_precproc version. Shall I re-run this step>> >>> before statistical analyses, to create a new >> lh.lh-rh.thickness.sm00.mgh?>> > >>> On the other hand I have some doubts about the statistical procedure.>> >>> It's supposed that if I apply the Xhemi registration, as result the>> >>> left and right hemispheres are equals to each other on every >> subject, so:>> > >>> A) Where can I get the CT values after the Xhemi registration to>> >>> FSaverage_sym for the left and right hemispheres?>> >>what are CT values?>> > > >>> B) Given that I have two groups, Patients and Control, with two >> levels>> >>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female>> >>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that >> I can>> >>> set the contrasts and fsgd files as with a normal CT analisis, but>> >>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to >> contain the>> >>> left-right differences across subjects, right?>> > >>> Wich would be the right interpretation? of:>> >>The interpretation does not really change because it is a xhemi >> analysis>> > >>> 1) 5 .5 -.5 -.5 0 0 0 0>> >>Is the L-R difference between Grp1 and Grp2 different than 0 >> (regressing>> >>out Var1 and gender)>> > >>> 2) 5 -.5 .5 -.5 0 0 0 0>> >>Is the L-R difference between Males and Females different than 0>> >>(regressing out Var1 and Group)>> > >>> 3) 0 0 0 0 .5 .5 -.5 -.5>> >>Does the slope of the L-R difference with Var1 differ between Grp1 and>> >>Grp2(regressing out gender)>> > >>> 4) 0 0 0 0 5 -.5 .5 -.5>> >>Does the slope of the L-R difference with Var1 differ between Male and>> >>Female(regressing out group)>> > > > > >>> Many thanks in advanced.>> >>> Gabriel.>> >>-->> >>Douglas N. Greve, Ph.D.>> >>MGH-NMR Center>> >>gr...@nmr.mgh.harvard.edu>> >>Phone Number: 617-724-2358>> >>Fax: 617-726-7422>> >>Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>> >>FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html>> >>Outgoing: >> ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/>> >>___>> >>Freesurfer mailing list>> >>Freesurfer@nmr.mgh.harvard.edu>> >>https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>> >>The information in this e-mail is intended only for the person to >> whom it is>> >>addressed. If you believe this e-mail was sent to you in error and >> the e-mail>> >>contains patient information, please contact the Partners >> Compliance HelpLine at>> >>http://www.partners.org/complianceline . If the e-mail was sent to >> you in error>> >>but does not contain pa
Re: [Freesurfer] Xhemi stat questions
Do you mean you want the right hemi thicknesses on the left hemisphere of a given subject or on the fsaverage_sym? doug On 03/25/2013 11:25 AM, Gabriel Gonzalez Escamilla wrote: > Thank you, so I'm keeping the one I had. > > Sorry for my bad explanation. When I do a normal cortical thickness > study, I know the average thickness for a label, e.g. cortex, and the > values at each vertex of each hemisphere are stored in > $subject/surf/?l.thickness. I would like to know if it is possible to > obtain the same cortical thickness measure from the lh-rh registered > hemispheres of each subject. > > > Regards, > Gabriel > > > El 25/03/13, *Douglas N Greve * escribió: >> >> On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote: >> >Thanks a lot for your answer, >> > >> >I'm sending you attached the diff of the two mris_preproc. >> Those differences are just added features and won't change your results. >> > >> >When I wrote CT, I was meaning cortical thickness, as normally this >> values are in surf/?h.thickness, But how do I know the >> Xhemi-registered thickness values of each subject for lh-rh, or area >> or any of those indices? >> I'm not sure what you mean. When you run mris_preproc, you specify >> whether you want thickness, etc. >> doug >> > >> >Regards, >> >Gabriel >> > >> > >> >El 25/03/13, *Douglas N Greve * escribió: >> >> >> >>On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote: >> >>> Dear Doug, >> >>> >> >>> I've seen that you restore the files to download, for the Xhemi >> >>> registration. While I'm checking for the statistical process, I've >> >>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: >> >>> 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06 >> >>> 16:06:17, Revision: 1.66, So mine is a lower version but recent hour, >> >>> and the actual is newer version but seems that was created before the >> >>> one I have. My question is, Which one should I keep? >> >>Can you send me a diff of the two files? >> >>> >> >>> If I change the mris_precproc version. Shall I re-run this step >> >>> before statistical analyses, to create a new >> lh.lh-rh.thickness.sm00.mgh? >> >>> >> >>> On the other hand I have some doubts about the statistical procedure. >> >>> It's supposed that if I apply the Xhemi registration, as result the >> >>> left and right hemispheres are equals to each other on every >> subject, so: >> >>> >> >>> A) Where can I get the CT values after the Xhemi registration to >> >>> FSaverage_sym for the left and right hemispheres? >> >>what are CT values? >> >>> >> >>> >> >>> B) Given that I have two groups, Patients and Control, with two >> levels >> >>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female >> >>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that >> I can >> >>> set the contrasts and fsgd files as with a normal CT analisis, but >> >>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to >> contain the >> >>> left-right differences across subjects, right? >> >>> >> >>> Wich would be the right interpretation? of: >> >>The interpretation does not really change because it is a xhemi >> analysis >> >>> >> >>> 1) 5 .5 -.5 -.5 0 0 0 0 >> >>Is the L-R difference between Grp1 and Grp2 different than 0 >> (regressing >> >>out Var1 and gender) >> >>> >> >>> 2) 5 -.5 .5 -.5 0 0 0 0 >> >>Is the L-R difference between Males and Females different than 0 >> >>(regressing out Var1 and Group) >> >>> >> >>> 3) 0 0 0 0 .5 .5 -.5 -.5 >> >>Does the slope of the L-R difference with Var1 differ between Grp1 and >> >>Grp2(regressing out gender) >> >>> >> >>> 4) 0 0 0 0 5 -.5 .5 -.5 >> >>Does the slope of the L-R difference with Var1 differ between Male and >> >>Female(regressing out group) >> >>> >> >> >> >>> >> >>> >> >>> >> >>> Many thanks in advanced. >> >>> Gabriel. >> >> >> >>-- >> >>Douglas N. Greve, Ph.D. >> >>MGH-NMR Center >> >>gr...@nmr.mgh.harvard.edu >> >>Phone Number: 617-724-2358 >> >>Fax: 617-726-7422 >> >> >> >>Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> >>FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> >>Outgoing: >> ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> >> >> >>___ >> >>Freesurfer mailing list >> >>Freesurfer@nmr.mgh.harvard.edu >> >>https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> >> >> >>The information in this e-mail is intended only for the person to >> whom it is >> >>addressed. If you believe this e-mail was sent to you in error and >> the e-mail >> >>contains patient information, please contact the Partners >> Compliance HelpLine at >> >>http://www.partners.org/complianceline . If the e-mail was sent to >> you in error >> >>but does not contain patient information, please contact the sender >> and properly >> >>dispose of the e-mail. >> >> >> > >> >-- >> >-- >> >PhD. student Gabriel González-Escamilla >> >Laboratory of Functional
Re: [Freesurfer] Xhemi stat questions
Thank you, so I'm keeping the one I had.Sorry for my bad explanation. When I do a normal cortical thickness study, I know the average thickness for a label, e.g. cortex, and the values at each vertex of each hemisphere are stored in $subject/surf/?l.thickness. I would like to know if it is possible to obtain the same cortical thickness measure from the lh-rh registered hemispheres of each subject.Regards,GabrielEl 25/03/13, Douglas N Greve escribió:On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote:>Thanks a lot for your answer,>>I'm sending you attached the diff of the two mris_preproc.Those differences are just added features and won't change your results.>>When I wrote CT, I was meaning cortical thickness, as normally this values are in surf/?h.thickness, But how do I know the Xhemi-registered thickness values of each subject for lh-rh, or area or any of those indices?I'm not sure what you mean. When you run mris_preproc, you specify whether you want thickness, etc.doug>>Regards,>Gabriel>>>El 25/03/13, *Douglas N Greve * escribió:On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote:>>> Dear Doug,>> I've seen that you restore the files to download, for the Xhemi>>> registration. While I'm checking for the statistical process, I've>>> seen that the one I have is: Date: 2012/12/06 16:06:52, Revision:>>> 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06>>> 16:06:17, Revision: 1.66, So mine is a lower version but recent hour,>>> and the actual is newer version but seems that was created before the>>> one I have. My question is, Which one should I keep?>>Can you send me a diff of the two files?>> If I change the mris_precproc version. Shall I re-run this step>>> before statistical analyses, to create a new lh.lh-rh.thickness.sm00.mgh?>> On the other hand I have some doubts about the statistical procedure.>>> It's supposed that if I apply the Xhemi registration, as result the>>> left and right hemispheres are equals to each other on every subject, so:>> A) Where can I get the CT values after the Xhemi registration to>>> FSaverage_sym for the left and right hemispheres?>>what are CT values?> B) Given that I have two groups, Patients and Control, with two levels>>> each, i.e male-female (Gp1male Gp1female Gp2male Gp2female>>> Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that I can>>> set the contrasts and fsgd files as with a normal CT analisis, but>>> only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to contain the>>> left-right differences across subjects, right?>> Wich would be the right interpretation? of:>>The interpretation does not really change because it is a xhemi analysis>> 1) 5 .5 -.5 -.5 0 0 0 0>>Is the L-R difference between Grp1 and Grp2 different than 0 (regressing>>out Var1 and gender)>> 2) 5 -.5 .5 -.5 0 0 0 0>>Is the L-R difference between Males and Females different than 0>>(regressing out Var1 and Group)>> 3) 0 0 0 0 .5 .5 -.5 -.5>>Does the slope of the L-R difference with Var1 differ between Grp1 and>>Grp2(regressing out gender)>> 4) 0 0 0 0 5 -.5 .5 -.5>>Does the slope of the L-R difference with Var1 differ between Male and>>Female(regressing out group)> Many thanks in advanced.>>> Gabriel.-- >>Douglas N. Greve, Ph.D.>>MGH-NMR Center>>gr...@nmr.mgh.harvard.edu>>Phone Number: 617-724-2358>>Fax: 617-726-7422Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting>>FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html>>Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/___>>Freesurfer mailing list>>Freesurfer@nmr.mgh.harvard.edu>>https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer>>The information in this e-mail is intended only for the person to whom it is>>addressed. If you believe this e-mail was sent to you in error and the e-mail>>contains patient information, please contact the Partners Compliance HelpLine at>>http://www.partners.org/complianceline . If the e-mail was sent to you in error>>but does not contain patient information, please contact the sender and properly>>dispose of the e-mail.-- >-->PhD. student Gabriel González-Escamilla>Laboratory of Functional Neuroscience>Department of Physiology, Anatomy, and Cell Biology>University Pablo de Olavide>Ctra. de Utrera, Km.1>41013 - Seville>- Spain ->>Email: ggon...@upo.es>http://www.upo.es/neuroaging/es/ -- Douglas N. Greve, Ph.D.MGH-NMR Centergr...@nmr.mgh.harvard.eduPhone Number: 617-724-2358Fax: 617-726-7422Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReportingFileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.htmlOutgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/-- --PhD. student Gabriel González-EscamillaLaboratory of Functional NeuroscienceDepartment of Physiology, Anatomy, and Cell BiologyUniversity Pablo de OlavideCtra. de Utrera, Km.141013
Re: [Freesurfer] Xhemi stat questions
On 03/25/2013 10:52 AM, Gabriel Gonzalez Escamilla wrote: > Thanks a lot for your answer, > > I'm sending you attached the diff of the two mris_preproc. Those differences are just added features and won't change your results. > > When I wrote CT, I was meaning cortical thickness, as normally this > values are in surf/?h.thickness, But how do I know the > Xhemi-registered thickness values of each subject for lh-rh, or area > or any of those indices? I'm not sure what you mean. When you run mris_preproc, you specify whether you want thickness, etc. doug > > Regards, > Gabriel > > > El 25/03/13, *Douglas N Greve * escribió: >> >> On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote: >> > Dear Doug, >> > >> > I've seen that you restore the files to download, for the Xhemi >> > registration. While I'm checking for the statistical process, I've >> > seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: >> > 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06 >> > 16:06:17, Revision: 1.66, So mine is a lower version but recent hour, >> > and the actual is newer version but seems that was created before the >> > one I have. My question is, Which one should I keep? >> Can you send me a diff of the two files? >> > >> > If I change the mris_precproc version. Shall I re-run this step >> > before statistical analyses, to create a new >> lh.lh-rh.thickness.sm00.mgh? >> > >> > On the other hand I have some doubts about the statistical procedure. >> > It's supposed that if I apply the Xhemi registration, as result the >> > left and right hemispheres are equals to each other on every >> subject, so: >> > >> > A) Where can I get the CT values after the Xhemi registration to >> > FSaverage_sym for the left and right hemispheres? >> what are CT values? >> > >> > >> > B) Given that I have two groups, Patients and Control, with two levels >> > each, i.e male-female (Gp1male Gp1female Gp2male Gp2female >> > Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that I can >> > set the contrasts and fsgd files as with a normal CT analisis, but >> > only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to contain the >> > left-right differences across subjects, right? >> > >> > Wich would be the right interpretation? of: >> The interpretation does not really change because it is a xhemi analysis >> > >> > 1) 5 .5 -.5 -.5 0 0 0 0 >> Is the L-R difference between Grp1 and Grp2 different than 0 (regressing >> out Var1 and gender) >> > >> > 2) 5 -.5 .5 -.5 0 0 0 0 >> Is the L-R difference between Males and Females different than 0 >> (regressing out Var1 and Group) >> > >> > 3) 0 0 0 0 .5 .5 -.5 -.5 >> Does the slope of the L-R difference with Var1 differ between Grp1 and >> Grp2(regressing out gender) >> > >> > 4) 0 0 0 0 5 -.5 .5 -.5 >> Does the slope of the L-R difference with Var1 differ between Male and >> Female(regressing out group) >> > >> >> > >> > >> > >> > Many thanks in advanced. >> > Gabriel. >> >> -- >> Douglas N. Greve, Ph.D. >> MGH-NMR Center >> gr...@nmr.mgh.harvard.edu >> Phone Number: 617-724-2358 >> Fax: 617-726-7422 >> >> Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting >> FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html >> Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ >> >> ___ >> Freesurfer mailing list >> Freesurfer@nmr.mgh.harvard.edu >> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer >> >> >> The information in this e-mail is intended only for the person to >> whom it is >> addressed. If you believe this e-mail was sent to you in error and >> the e-mail >> contains patient information, please contact the Partners Compliance >> HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to >> you in error >> but does not contain patient information, please contact the sender >> and properly >> dispose of the e-mail. >> > > -- > -- > PhD. student Gabriel González-Escamilla > Laboratory of Functional Neuroscience > Department of Physiology, Anatomy, and Cell Biology > University Pablo de Olavide > Ctra. de Utrera, Km.1 > 41013 - Seville > - Spain - > > Email: ggon...@upo.es > http://www.upo.es/neuroaging/es/ -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Re: [Freesurfer] Xhemi stat questions
Thanks a lot for your answer,I'm sending you attached the diff of the two mris_preproc.When I wrote CT, I was meaning cortical thickness, as normally this values are in surf/?h.thickness, But how do I know the Xhemi-registered thickness values of each subject for lh-rh, or area or any of those indices?Regards,GabrielEl 25/03/13, Douglas N Greve escribió:On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote:> Dear Doug,>> I've seen that you restore the files to download, for the Xhemi > registration. While I'm checking for the statistical process, I've > seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: > 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06 > 16:06:17, Revision: 1.66, So mine is a lower version but recent hour, > and the actual is newer version but seems that was created before the > one I have. My question is, Which one should I keep?Can you send me a diff of the two files?>> If I change the mris_precproc version. Shall I re-run this step > before statistical analyses, to create a new lh.lh-rh.thickness.sm00.mgh?>> On the other hand I have some doubts about the statistical procedure. > It's supposed that if I apply the Xhemi registration, as result the > left and right hemispheres are equals to each other on every subject, so:>> A) Where can I get the CT values after the Xhemi registration to > FSaverage_sym for the left and right hemispheres?what are CT values?>>> B) Given that I have two groups, Patients and Control, with two levels > each, i.e male-female (Gp1male Gp1female Gp2male Gp2female > Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that I can > set the contrasts and fsgd files as with a normal CT analisis, but > only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to contain the > left-right differences across subjects, right?>> Wich would be the right interpretation? of:The interpretation does not really change because it is a xhemi analysis>> 1) 5 .5 -.5 -.5 0 0 0 0Is the L-R difference between Grp1 and Grp2 different than 0 (regressing out Var1 and gender)>> 2) 5 -.5 .5 -.5 0 0 0 0Is the L-R difference between Males and Females different than 0 (regressing out Var1 and Group)>> 3) 0 0 0 0 .5 .5 -.5 -.5Does the slope of the L-R difference with Var1 differ between Grp1 and Grp2(regressing out gender)>> 4) 0 0 0 0 5 -.5 .5 -.5Does the slope of the L-R difference with Var1 differ between Male and Female(regressing out group)> Many thanks in advanced.> Gabriel.-- Douglas N. Greve, Ph.D.MGH-NMR Centergr...@nmr.mgh.harvard.eduPhone Number: 617-724-2358Fax: 617-726-7422Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReportingFileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.htmlOutgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/___Freesurfer mailing listFreesurfer@nmr.mgh.harvard.eduhttps://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurferThe information in this e-mail is intended only for the person to whom it isaddressed. If you believe this e-mail was sent to you in error and the e-mailcontains patient information, please contact the Partners Compliance HelpLine athttp://www.partners.org/complianceline . If the e-mail was sent to you in errorbut does not contain patient information, please contact the sender and properlydispose of the e-mail.-- --PhD. student Gabriel González-EscamillaLaboratory of Functional NeuroscienceDepartment of Physiology, Anatomy, and Cell BiologyUniversity Pablo de OlavideCtra. de Utrera, Km.141013 - Seville- Spain -Email: ggon...@upo.eshttp://www.upo.es/neuroaging/es/ /root/trabajo/freesurfer/bin/mris_preproc_old /root/trabajo/freesurfer/bin/mris_preproc 14,15c14,15 < #$Date: 2012/12/06 16:06:52 $ < #$Revision: 1.59.2.4 $ --- > #$Date: 2012/12/06 16:06:17 $ > #$Revision: 1.66 $ 32c32 < set VERSION = '$Id: mris_preproc,v 1.59.2.4 2012/12/06 16:06:52 mreuter Exp $'; --- > set VERSION = '$Id: mris_preproc,v 1.66 2012/12/06 16:06:17 mreuter Exp $'; 77a78 > set DoXHemiOnly = 0; # do not include the non-xhemi 445a447,453 > case "--tal-xyz": > if($#argv < 1) goto arg1err; > set svalsurf = $argv[1]; shift; > set sval = tal-xyz > set srcsurf = 1; > breaksw > 679a688,692 > case "--xhemi-only": > set DoXHemi = 1; > set DoXHemiOnly = 1; > breaksw > 923,924c936,941 < if($srchemi == lh) set tmplist = ($tmplist $subj $subj/xhemi) < if($srchemi == rh) set tmplist = ($tmplist $subj/xhemi $subj) --- > if($DoXHemiOnly) then > set tmplist = ($tmplist $subj/xhemi) > else > if($srchemi == lh) set tmplist = ($tmplist $subj $subj/xhemi) > if($srchemi == rh) set tmplist = ($tmplist $subj/xhemi $subj) > endif 1017a1035 > echo " --tal-xyz surfname : output xyz in mni305 for each subject" 1109c1127 < --area surfname --- > --tal-xyz surfname ,1112c1129,1131 < Extract vertex area from subject/surf/hemi.surfname to u
Re: [Freesurfer] Xhemi stat questions
On 03/22/2013 06:45 AM, Gabriel Gonzalez Escamilla wrote: > Dear Doug, > > I've seen that you restore the files to download, for the Xhemi > registration. While I'm checking for the statistical process, I've > seen that the one I have is: Date: 2012/12/06 16:06:52, Revision: > 1.59.2.4, and the one that is on your ftp server is Date: 2012/12/06 > 16:06:17, Revision: 1.66, So mine is a lower version but recent hour, > and the actual is newer version but seems that was created before the > one I have. My question is, Which one should I keep? Can you send me a diff of the two files? > > If I change the mris_precproc version. Shall I re-run this step > before statistical analyses, to create a new lh.lh-rh.thickness.sm00.mgh? > > On the other hand I have some doubts about the statistical procedure. > It's supposed that if I apply the Xhemi registration, as result the > left and right hemispheres are equals to each other on every subject, so: > > A) Where can I get the CT values after the Xhemi registration to > FSaverage_sym for the left and right hemispheres? what are CT values? > > > B) Given that I have two groups, Patients and Control, with two levels > each, i.e male-female (Gp1male Gp1female Gp2male Gp2female > Gp1maleVar1 Gp1femaleVar1 Grp2maleVar1 Grp2femaleVar1), and that I can > set the contrasts and fsgd files as with a normal CT analisis, but > only on my lh.lh-rh.thickness.smXX.mgh, wich is suppose to contain the > left-right differences across subjects, right? > > Wich would be the right interpretation? of: The interpretation does not really change because it is a xhemi analysis > > 1) 5 .5 -.5 -.5 0 0 0 0 Is the L-R difference between Grp1 and Grp2 different than 0 (regressing out Var1 and gender) > > 2) 5 -.5 .5 -.5 0 0 0 0 Is the L-R difference between Males and Females different than 0 (regressing out Var1 and Group) > > 3) 0 0 0 0 .5 .5 -.5 -.5 Does the slope of the L-R difference with Var1 differ between Grp1 and Grp2(regressing out gender) > > 4) 0 0 0 0 5 -.5 .5 -.5 Does the slope of the L-R difference with Var1 differ between Male and Female(regressing out group) > > > > > Many thanks in advanced. > Gabriel. -- Douglas N. Greve, Ph.D. MGH-NMR Center gr...@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422 Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html Outgoing: ftp://surfer.nmr.mgh.harvard.edu/transfer/outgoing/flat/greve/ ___ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer The information in this e-mail is intended only for the person to whom it is addressed. If you believe this e-mail was sent to you in error and the e-mail contains patient information, please contact the Partners Compliance HelpLine at http://www.partners.org/complianceline . If the e-mail was sent to you in error but does not contain patient information, please contact the sender and properly dispose of the e-mail.
