Wasana Madushanka Ediri Arachchi

8 Questions 9 Answers 0 Followers

Questions related from Wasana Madushanka Ediri Arachchi

Can anyone provide reference materials for Deformation Based Morphometry(DBM) ?

I heard that this parameter (DBM) is well known from continuum mechanics and is usually used for the analysis of volume changes in flowing liquids or gases. I am seeking some theories of how does...

10 October 2018 5,705 2 View

Why people use higher smoothing kernels for surface based measurements of brain?

Generally for tissue volumes(GM, WM and DBM) we use 8-12 FWHM for smoothing. But in some softwares recommend 15 mm for cortical thickness and 20-25 mm for all other indexes (gyrification, cortical...

04 April 2018 5,755 3 View

How to obtain individual subject's ICAs using group ICAs?

I have obtaind 9 group ICs using GIFT. Now I want to extract each ICs of each subject using group ICs. Subject matrx(contains voxels of each subject)=Mixing matrix(contains weight of each...

01 January 2018 1,829 2 View

Does ICA meaningful for structural (T1W) brain data?

Currently ICA is applied for functional data. But...I feel this could be little debating.

01 January 2018 3,784 4 View

How to do searchlight MVPA for surface based measurements of Brain?

I have done searchlight MVPA for GM matter volumes and deformation based measurements sucessfully. But I have converted .gii files of cortical thickness to .mat and awaiting to do searchlight...

12 December 2017 4,637 0 View

What are the best requirements/specs for an efficient image processing laptop?

I am working on Neuroimaging...

11 November 2016 8,034 0 View

Can localize or map microorganism (Ex- Mycobacterium Tuberculosis) distribution of TB patients using radio-pharmaceutical?

I would like to try, study and develop a Radio-pharmaceutical which can demonstrate Microorganism distribution in a particular disease with the help of PET or SPECT.

09 September 2015 8,848 0 View

Why tissue volume reductions are highlighted by DBM cannot be approximated by GM and WM findings of VBM of same sample?

My DBM results of 116 SZ and 116 NC show a greater coverage of both WM and GM areas. However WM findings of them are unable to confirm by VBM/WM findings. VBM/GM findings are looks OK in both...

01 January 1970 632 0 View