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help > RE: reporting a bug in CONN
Jun 22, 2020 12:06 AM | Alfonso Nieto-Castanon - Boston University
RE: reporting a bug in CONN
Dear Xinyuan,
That is peculiar, the second localization appears clearly wrong as the cluster is located in the right hemisphere (so SCC l is clearly off), could you please check whether the file atlas.nii in your conn distribution conn/rois folder (this contains the default atlas used for translating MNI coordinates to regional labels) appears to have been somehow modified between the first and second time that you displayed these results? (e.g. check its 'last modified' date, if in doubt send me a copy of that file)
Best
Alfonso
Originally posted by Dong An:
That is peculiar, the second localization appears clearly wrong as the cluster is located in the right hemisphere (so SCC l is clearly off), could you please check whether the file atlas.nii in your conn distribution conn/rois folder (this contains the default atlas used for translating MNI coordinates to regional labels) appears to have been somehow modified between the first and second time that you displayed these results? (e.g. check its 'last modified' date, if in doubt send me a copy of that file)
Best
Alfonso
Originally posted by Dong An:
Dear Alfonso,
I found a bug in conn. I ran a regression analysis, and "results explorer" window showed a cluster (26,-90,28), the details of this cluster were shown:
size: 160 size p-PWE 0.000263; size p-FDR 0.000231; size p-unc 0.000005; peak p-PWE 0.549599; peak p-unc 0.000004
regions included in this cluster:
138 voxels covering 6% of atlas OP r (Occipital Pole Right),
20 voxels covering 0% of atlas sLOC r (Lateral Occipital Cortex, superior division Right).
2 voxels covering 0% of atlas. not-labeled.
A couple of days later, I want to extract the z values of this cluster, but to my surprise, when I opend, the regions of this cluster became very different (please see attached picture), but other characteristics (i.e., cluster size, coordinate, and p values) of this cluster did not change. I did not change anything in setting. But why regions of this cluster changed (OP r became SCC l)?
Thank you very much in advance!
Best,
Xinyuan
I found a bug in conn. I ran a regression analysis, and "results explorer" window showed a cluster (26,-90,28), the details of this cluster were shown:
size: 160 size p-PWE 0.000263; size p-FDR 0.000231; size p-unc 0.000005; peak p-PWE 0.549599; peak p-unc 0.000004
regions included in this cluster:
138 voxels covering 6% of atlas OP r (Occipital Pole Right),
20 voxels covering 0% of atlas sLOC r (Lateral Occipital Cortex, superior division Right).
2 voxels covering 0% of atlas. not-labeled.
A couple of days later, I want to extract the z values of this cluster, but to my surprise, when I opend, the regions of this cluster became very different (please see attached picture), but other characteristics (i.e., cluster size, coordinate, and p values) of this cluster did not change. I did not change anything in setting. But why regions of this cluster changed (OP r became SCC l)?
Thank you very much in advance!
Best,
Xinyuan
Threaded View
| Title | Author | Date |
|---|---|---|
| Dong An | Jun 21, 2020 | |
| Alfonso Nieto-Castanon | Jun 22, 2020 | |
| Dong An | Jun 23, 2020 | |