[FieldTrip] Hello Experts
weiyong.w.xu at jyu.fi
Wed Aug 29 12:07:09 CEST 2018
I had similar problem for my MEG data because we did not collect the individual MRI data.
For source analysis in FieldTrip without individual MRIs, I used a simple sphere fitting and scaling method to fit a template (Colin 27, included in FieldTrip) to the polhemus headshape. First, a single sphere was fitted to the MRI scalp and another sphere was fitted to the polhemus headshape. Then I scale the MRI sphere to the same size as the polhemus headshape sphere. And use the scaled MRI template for later source analysis in FieldTrip.
Some details, I usually remove the polhemus head points on the nose, also the lower part of the scalp (from MRI template).
From: fieldtrip <fieldtrip-bounces at science.ru.nl> on behalf of Gaur, Pramod <p.gaur at ulster.ac.uk>
Sent: Tuesday, August 28, 2018 10:26:42 PM
To: FieldTrip discussion list
Subject: [FieldTrip] Hello Experts
Does anyone aware of how to use a template mri when individual subject mri are not available. I am interested in MEG source modelling and I don’t have individual mri. I do have the polyhemus headshape points with the raw data.
Any help will be highly appreciated.
This email and any attachments are confidential and intended solely for the use of the addressee and may contain information which is covered by legal, professional or other privilege. If you have received this email in error please notify the system manager at postmaster at ulster.ac.uk and delete this email immediately. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Ulster University.
The University's computer systems may be monitored and communications carried out on them may be recorded to secure the effective operation of the system and for other lawful purposes. Ulster University does not guarantee that this email or any attachments are free from viruses or 100% secure. Unless expressly stated in the body of a separate attachment, the text of email is not intended to form a binding contract. Correspondence to and from the University may be subject to requests for disclosure by 3rd parties under relevant legislation.
The Ulster University was founded by Royal Charter in 1984 and is registered with company number RC000726 and VAT registered number GB672390524.The primary contact address for Ulster University in Northern Ireland is Cromore Road, Coleraine, Co. Londonderry BT52 1SA
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the fieldtrip