# Field cancellation in functional labels/ROIs

**URL:** <https://mne.discourse.group/t/field-cancellation-in-functional-labels-rois/2524>\
**Category:** Support & Discussions\
**Tags:** feature-request\
**Created:** [January 20, 2021, 12:43pm UTC](https://mne.discourse.group/t/field-cancellation-in-functional-labels-rois/2524 "2021-01-20T12:43:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dasdiptyajit](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/dasdiptyajit/32/4796_2.png) [@dasdiptyajit](https://mne.discourse.group/u/dasdiptyajit)\
**Post date:** [January 20, 2021, 12:43pm UTC](https://mne.discourse.group/t/field-cancellation-in-functional-labels-rois/2524/1 "2021-01-20T12:43:05Z")

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Hi everyone,

Does MNE provides any tool/function that can be used to compute net field cancellation in a functional label/anatomical ROI?

Something similar to what has been described in: [Cancellation of EEG and MEG signals generated by extended and distributed sources](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2797557/)

best,  
Dip

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**Author:** ![larsoner](https://yyz2.discourse-cdn.com/free1/user_avatar/mne.discourse.group/larsoner/32/3_2.png) [@larsoner](https://mne.discourse.group/u/larsoner)\
**Post date:** [October 18, 2021, 8:19pm UTC](https://mne.discourse.group/t/field-cancellation-in-functional-labels-rois/2524/2 "2021-10-18T20:19:39Z")

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Not that I know of, feel free to open an issue for an enhancement request on GitHub