[FieldTrip] fieldtrip Digest, Vol 167, Issue 2
Schoffelen, J.M. (Jan Mathijs)
janmathijs.schoffelen at donders.ru.nl
Mon Oct 7 17:36:59 CEST 2024
Hi Edoardo,
It is not clear to me what you mean with ‘it works only if….’
Best wishes,
Jan-Mathijs
On 3 Oct 2024, at 16:18, Edoardo Pinzuti via fieldtrip <fieldtrip at science.ru.nl> wrote:
Dear Jan-Mathijs,
it works only if fixedori is 'yes' since filt = pinv(sqrt(lf' * invCy_squared * lf)) * lf' *invCy; lf can have only one orientation with this implementation.
thanks fo the hint
Edoardo
Il giorno gio 3 ott 2024 alle ore 12:10 <fieldtrip-request at science.ru.nl<mailto:fieldtrip-request at science.ru.nl>> ha scritto:
Send fieldtrip mailing list submissions to
fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>
To subscribe or unsubscribe via the World Wide Web, visit
https://mailman.science.ru.nl/mailman/listinfo/fieldtrip<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fmailman%2Flistinfo%2Ffieldtrip&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cd116089cecb34e2f7db708dce6e5e1ec%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638639122213482957%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=S9rWfxgvYzQEp6VTEPt%2FN%2FcNSWkhUZzYo%2BiiIwyb4Hc%3D&reserved=0>
or, via email, send a message with subject or body 'help' to
fieldtrip-request at science.ru.nl<mailto:fieldtrip-request at science.ru.nl>
You can reach the person managing the list at
fieldtrip-owner at science.ru.nl<mailto:fieldtrip-owner at science.ru.nl>
When replying, please edit your Subject line so it is more specific
than "Re: Contents of fieldtrip digest..."
Today's Topics:
1. Re: lcmv weightnorm (Schoffelen, J.M. (Jan Mathijs))
----------------------------------------------------------------------
Message: 1
Date: Wed, 2 Oct 2024 12:07:39 +0000
From: "Schoffelen, J.M. (Jan Mathijs)"
<janmathijs.schoffelen at donders.ru.nl<mailto:janmathijs.schoffelen at donders.ru.nl>>
To: FieldTrip discussion list <fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>>
Subject: Re: [FieldTrip] lcmv weightnorm
Message-ID: <F6D2DFE0-0210-4BA2-BC1E-95BBDBC3029A at donders.ru.nl<mailto:F6D2DFE0-0210-4BA2-BC1E-95BBDBC3029A at donders.ru.nl>>
Content-Type: text/plain; charset="utf-8"
Hi Edoardo,
The first thing I would check would be the sanity of the sensor level data. Are the sensor level data (i.e. the time series on which you computed the sensor covariance, and te resulting sensor covariance) real-valued? If this is not the case, then somehow the spatial filters that you compute automagically become complex-valued. If it’s not due to the sensor level data being ill-behaved in terms of complex-valuedness, my next diagnostic step would be to put some breakpoints in the matlab code (ft_inverse_lcmv), and investigate step by step what is happening.
Good luck,
Jan-Mathijs
> On 27 Sep 2024, at 18:50, Edoardo Pinzuti via fieldtrip <fieldtrip at science.ru.nl<mailto:fieldtrip at science.ru.nl>> wrote:
>
> Dear Fieldtrip users,
>
> Do you know why if I use this setting cfg.lcmv.weightnorm = 'nai' for my lcmv beamformer analysis I get complex value avg.mom.
>
> I am doing a lcmv on resting state data and I need the timecourses of specific ROIs is this "nai" parameter required ?
>
> Thanks
> Edoardo
> _______________________________________________
> fieldtrip mailing list
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fmailman%2Flistinfo%2Ffieldtrip&data=05%7C02%7Cfieldtrip%40science.ru.nl%7C4c84195fb39d4d1ff7ab08dce2dacf7e%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638634676624524382%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=ProB%2BDd8z2rcnhu3gaMF1DcQEGm4JQwhLvYKftcgM7k%3D&reserved=0<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fmailman%2Flistinfo%2Ffieldtrip&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cd116089cecb34e2f7db708dce6e5e1ec%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638639122213482957%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=S9rWfxgvYzQEp6VTEPt%2FN%2FcNSWkhUZzYo%2BiiIwyb4Hc%3D&reserved=0>
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.1371%2Fjournal.pcbi.1002202&data=05%7C02%7Cfieldtrip%40science.ru.nl%7C4c84195fb39d4d1ff7ab08dce2dacf7e%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638634676624680605%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=AcqIJq5rsm0Xf4Jd%2BEy0skeMoINCQteA%2BPTVSXvCQVQ%3D&reserved=0<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.1371%2Fjournal.pcbi.1002202&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cd116089cecb34e2f7db708dce6e5e1ec%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638639122213482957%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=025%2F%2FZbpGYppzCN%2F07TtaOg3zt1jOTBP0%2FdQfBYZ8YM%3D&reserved=0>
------------------------------
Subject: Digest Footer
_______________________________________________
fieldtrip mailing list
https://mailman.science.ru.nl/mailman/listinfo/fieldtrip<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fmailman%2Flistinfo%2Ffieldtrip&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cd116089cecb34e2f7db708dce6e5e1ec%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638639122213482957%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=S9rWfxgvYzQEp6VTEPt%2FN%2FcNSWkhUZzYo%2BiiIwyb4Hc%3D&reserved=0>
_______________________________________________
fieldtrip mailing list
https://mailman.science.ru.nl/mailman/listinfo/fieldtrip<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.science.ru.nl%2Fmailman%2Flistinfo%2Ffieldtrip&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cd116089cecb34e2f7db708dce6e5e1ec%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638639122213482957%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=S9rWfxgvYzQEp6VTEPt%2FN%2FcNSWkhUZzYo%2BiiIwyb4Hc%3D&reserved=0>
https://doi.org/10.1371/journal.pcbi.1002202<https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.1371%2Fjournal.pcbi.1002202&data=05%7C02%7Cfieldtrip%40science.ru.nl%7Cd116089cecb34e2f7db708dce6e5e1ec%7C084578d9400d4a5aa7c7e76ca47af400%7C1%7C0%7C638639122213482957%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=025%2F%2FZbpGYppzCN%2F07TtaOg3zt1jOTBP0%2FdQfBYZ8YM%3D&reserved=0>
------------------------------
End of fieldtrip Digest, Vol 167, Issue 2
*****************************************
_______________________________________________
fieldtrip mailing list
https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
https://doi.org/10.1371/journal.pcbi.1002202
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20241007/2190e1e4/attachment.htm>
More information about the fieldtrip
mailing list