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| see https://surfer.nmr.mgh.harvard.edu/fswiki/CorticalParcellation_Yeo2011 for example intro here, |
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| Perirhinal cortex (area 35) is located in the parahippocampal gyrus. Perirhinal area 35 usually sits on the medial bank of the collateral sulcus but also on the lateral bank of the rhinal sulcus anteriorly, if the rhinal sulcus is present. Using high-resolution ex vivo imaging, we mapped perirhinal cortex (area 35) onto a surface template. Two different resolutions were collected 1) a "standard" 1 mm isotropic scan and 2) a high resolution 100 um isotropic scan. The high resolution scan showed architectural features (lamina and boundaries) while the standard 1mm scan provided the surface template that works with FreeSurfer. This perirhinal label was validated with histological staining and thus cytoarchitecturally-defined for perirhinal cortex (Brodmann's area 35). See Augustinack JC et al, Neuroimage 2013 Jan 1;64:32-42. |
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| you have three options for using these labels: | {{attachment:flatpconl2inflated2014.jpg}} |
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| labels in freesurfer surface space are in subjects dir subj/label/?h.perirhinal.label | == Where to find the perirhinal (cytoarchitectural-defined) labels == |
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| instructions on how to view in freeview | The labels are in freesurfer surface space and located in subjects dir subj/label/?h.perirhinal.label |
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| where to get stats on this label (../stats/$hemi.BA.stats) | See instructions on how to view in freeview |
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| already in freesurfer 5.3 | To generate stats on this label (../stats/$hemi.BA.stats) This label is available in freesurfer 5.3 |
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label in volume space mapping surface label to subjects volume space will be available in v6 or if you have freesurfer, run this to map from surface space to volume space and then this is how you view it. label in fsaverage volume space [[attachment:perirhinal_fsaverage.nii]] label in mni152 volume space [[attachment:perirhinal_mni152.nii]] |
Perirhinal Cortex
Perirhinal cortex (area 35) is located in the parahippocampal gyrus. Perirhinal area 35 usually sits on the medial bank of the collateral sulcus but also on the lateral bank of the rhinal sulcus anteriorly, if the rhinal sulcus is present. Using high-resolution ex vivo imaging, we mapped perirhinal cortex (area 35) onto a surface template. Two different resolutions were collected 1) a "standard" 1 mm isotropic scan and 2) a high resolution 100 um isotropic scan. The high resolution scan showed architectural features (lamina and boundaries) while the standard 1mm scan provided the surface template that works with FreeSurfer. This perirhinal label was validated with histological staining and thus cytoarchitecturally-defined for perirhinal cortex (Brodmann's area 35). See Augustinack JC et al, Neuroimage 2013 Jan 1;64:32-42.
Where to find the perirhinal (cytoarchitectural-defined) labels
The labels are in freesurfer surface space and located in subjects dir subj/label/?h.perirhinal.label
See instructions on how to view in freeview
To generate stats on this label (../stats/$hemi.BA.stats)
This label is available in freesurfer 5.3