Re: [Freesurfer] differences between OS recon all output, longitudinal data

2016-11-18 Thread Martin Reuter
And to add to this. In a longitudinal study you search for small longitudinal changes. There you should never switch versions or OS across time points, period. (Also in a cross sectional study you should never do it, but often the effect there, e.g. group differences, are much larger than proce

Re: [Freesurfer] differences between OS recon all output, longitudinal data

2016-11-15 Thread R Edgar
On 15 November 2016 at 11:01, anonymous anonymous wrote: > Oks, thank you! > > Last question! And using CUDA this time... would the results also differ? Most certainly. For example the GPU version does quite a few reduction sums, where the regular CPU code does accumulation sums. Richard ___

Re: [Freesurfer] differences between OS recon all output, longitudinal data

2016-11-15 Thread anonymous anonymous
Oks, thank you! Last question! And using CUDA this time... would the results also differ? 2016-11-15 16:18 GMT+01:00 Z K : > > > On 11/15/2016 07:21 AM, anonymous anonymous wrote: > >> Thank you so much for the extense answer! >> >> It happens that the person who analysed the first measure (of t

Re: [Freesurfer] differences between OS recon all output, longitudinal data

2016-11-15 Thread Z K
On 11/15/2016 07:21 AM, anonymous anonymous wrote: > Thank you so much for the extense answer! > > It happens that the person who analysed the first measure (of this > longitudinal dataset) used two different OS (he did it in a Virtual > machine on windows and a mac OS X) to speed up this step. T

Re: [Freesurfer] differences between OS recon all output, longitudinal data

2016-11-15 Thread anonymous anonymous
Thank you so much for the extense answer! It happens that the person who analysed the first measure (of this longitudinal dataset) used two different OS (he did it in a Virtual machine on windows and a mac OS X) to speed up this step. That data has already been used in some studies. ¿So my quest

Re: [Freesurfer] differences between OS recon all output, longitudinal data

2016-11-11 Thread zkaufman
> Hi > > I am using recon-all in some longitudinal data on a ubuntu 16.04, and > using > the development version of freesurfer as I was told here, because the > other > current version doesnt work on ubuntu 16.04. > > The problem is that the first scans were probablly processed using > virtualbo

[Freesurfer] differences between OS recon all output, longitudinal data

2016-11-11 Thread anonymous anonymous
Hi I am using recon-all in some longitudinal data on a ubuntu 16.04, and using the development version of freesurfer as I was told here, because the other current version doesnt work on ubuntu 16.04. The problem is that the first scans were probablly processed using virtualbox in a windows and an