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help > RE: Average within / between network connectivity
May 4, 2016 01:05 AM | Alfonso Nieto-Castanon - Boston University
RE: Average within / between network connectivity
Hi Ruth,
Currently there is a separate script (part of the CONN package but not yet integrated into CONN's gui) that would allow you to perform these sort of within- and between- network analyses. To use it you should:
1) in CONN's gui second-level results tab, define there the specific model that you would like to test (i.e. select the subject-effects and associated between-subjects contrast, and the desired conditions and associated between-conditions contrast)
2) then in Matlab command line type
conn_withinbetweenROItest;
That will prompt you to select two networks (e.g. select the 5 ROIs that belong to each of your first two networks) and then it will output a file containing the within- and between- network connectivities (averaged across all the ROIs within each network) for each subject, as well as the statistics associated with your selected second-level model again for the within- and between- network connectivity values.
Let me know if this is what you had in mind.
Best
Alfonso
Originally posted by Ruth Shaffer:
Currently there is a separate script (part of the CONN package but not yet integrated into CONN's gui) that would allow you to perform these sort of within- and between- network analyses. To use it you should:
1) in CONN's gui second-level results tab, define there the specific model that you would like to test (i.e. select the subject-effects and associated between-subjects contrast, and the desired conditions and associated between-conditions contrast)
2) then in Matlab command line type
conn_withinbetweenROItest;
That will prompt you to select two networks (e.g. select the 5 ROIs that belong to each of your first two networks) and then it will output a file containing the within- and between- network connectivities (averaged across all the ROIs within each network) for each subject, as well as the statistics associated with your selected second-level model again for the within- and between- network connectivity values.
Let me know if this is what you had in mind.
Best
Alfonso
Originally posted by Ruth Shaffer:
Hello,
I am looking into second level ROI-to-ROI analyses and am hoping to calculate average within- and between- network correlations for each of the networks of ROIs in two separate RSFC runs.
For example, if I had 3 networks, each with 5 ROIs, I would be trying to do two things:
1) to obtain an average within-network correlation during run1 and during run2 for each of the three networks (specifically I am looking for a single average correlation among the 5 ROIs in network 1 at run1 and then their average correlation at run 3--and then I would do the same calculation for the other two networks separately).
2) to obtain between network average correlations for each network (specifically I am looking for a single average correlation for 5 ROIs in network 1 with the 10 ROIs comprising networks 2 and 3, calculating this at run1 and then again at run 3--and tthen I would do the same calculation for the other two networks separately).
Is this possible to do in CONN, and, if so, how might I go about obtaining these measures?
Thank you so much for such a great program and for any help on this question you can give me!
Best,
Ruth
I am looking into second level ROI-to-ROI analyses and am hoping to calculate average within- and between- network correlations for each of the networks of ROIs in two separate RSFC runs.
For example, if I had 3 networks, each with 5 ROIs, I would be trying to do two things:
1) to obtain an average within-network correlation during run1 and during run2 for each of the three networks (specifically I am looking for a single average correlation among the 5 ROIs in network 1 at run1 and then their average correlation at run 3--and then I would do the same calculation for the other two networks separately).
2) to obtain between network average correlations for each network (specifically I am looking for a single average correlation for 5 ROIs in network 1 with the 10 ROIs comprising networks 2 and 3, calculating this at run1 and then again at run 3--and tthen I would do the same calculation for the other two networks separately).
Is this possible to do in CONN, and, if so, how might I go about obtaining these measures?
Thank you so much for such a great program and for any help on this question you can give me!
Best,
Ruth
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Title | Author | Date |
---|---|---|
Ruth Shaffer | Apr 27, 2016 | |
Alfonso Nieto-Castanon | May 4, 2016 | |
Chabran Eléna | Sep 20, 2018 | |
Maria Beser | Feb 11, 2022 | |
max345 | Feb 1, 2022 | |
Alfonso Nieto-Castanon | Feb 3, 2022 | |
max345 | Feb 4, 2022 | |
Alfonso Nieto-Castanon | Feb 4, 2022 | |
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