Print Email Facebook Twitter Interactive Visualization of Functional Brain Connectivity Title Interactive Visualization of Functional Brain Connectivity Author Van Dixhoorn, A.F. Contributor Botha, C.P. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Deptartment of Intelligent Systems Programme Section Computer Graphics and Visualization Date 2012-01-18 Abstract Functional brain connectivity from fMRI studies has become an important tool in studying functional interactions in the human brain as a complex network. The correlation between the fMRI activity traces of distinct brain regions indicates to what extent they are functionally connected. fMRI connectivity data typically consists of a matrix of correlations, also denoted as functional correlations, either at the voxel level or averaged over anatomically defined brain regions using an anatomical template such as the Automated Anatomical Labeling (AAL). In this thesis, we present methods for the interactive visualization of functional brain connectivity, both for region-based connectivity matrices and for correlation data at voxel resolution. The techniques were implemented in two different visual analysis applications, containing different representations that are coupled, supporting linked interaction. A GPU-accelerated raycasting technique was used to enable the real-time visualization of the voxel-wise functional brain networks. We have evaluated our tools via case studies with domain scientists at two different university medical centers. Subject visualizationbrain connectivityGPU raycasting To reference this document use: http://resolver.tudelft.nl/uuid:9f7a367d-100d-4ff1-a02e-3532d96689ee Embargo date 2012-01-18 Part of collection Student theses Document type master thesis Rights (c) 2012 Van Dixhoorn, A.F. Files PDF Thesis_Van_Dixhoorn.pdf 6.12 MB Close viewer /islandora/object/uuid:9f7a367d-100d-4ff1-a02e-3532d96689ee/datastream/OBJ/view