It is right if the register.dat maps 4d_inputBOLD.nii to the conformed subject anatomical space. You can check this with tkregisterfv --mov 4d_inputBOLD.nii' --reg 'register.dat'

On 12/18/19 10:23 AM, Marina Fernández wrote:

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Thank you Doug/Bruce.

We would like to project our AFNI preprocessed EPI scans (T1-registration, motion correction, linear regression, but unsmoothed) to Freesurfer cortical surfaces in order to obtain one file containing 250 (number of dynamics) EPI-cortical surfaces in the native space. For this, we are using the following command:

mri_vol2surf --mov '4d_inputBOLD.nii' --reg 'register.dat' --hemi '[l/r]h' --projfrac 0.5 --interp nearest --o 'output.nii'

Is that correct?

As our EPI scans were previously registered with AFNI to T1 (that it is in FS space), I guess that bbregister is not required, right?

Thank you in advance.

Best wishes,

Marina.

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