%0 Conference Proceedings
%T A New Method for Detection of Active Brain Regions with Event-Related fMRI Time Series Analysis
%D 2007
%A Duque, Juliano Jinzenji,
%A Sturzbecher, Marcio Junior,
%A Arajo, Drulio Barros de,
%A Felipe, Joaquim Cezar,
%@affiliation University of So Paulo
%@affiliation University of So Paulo
%@affiliation Universitiy of So Paulo
%@affiliation University of So Paulo
%E Falco, Alexandre Xavier,
%E Lopes, Hlio Crtes Vieira,
%B Brazilian Symposium on Computer Graphics and Image Processing, 20 (SIBGRAPI)
%C Belo Horizonte
%8 Oct. 7-10, 2007
%S Proceedings
%I IEEE Computer Society
%J Los Alamitos
%K fMRI, time series analysis, dynamic time warping.
%X Functional magnetic resonance imaging (fMRI) has been applied with several purposes in clinical environment as well as in basic neuroscience studies. The main purpose of fMRI is to map brain activity, which is achieved by applying statistical methods to time series of each voxel intensity, related to changes in blood oxygen level, in response to a short stimulus. In this work, we propose a new method for the analysis of event-related fMRI based in the use of the Dynamic Time Warping technique to compare pixel intensity time series. The results show the ability to discriminate activated brain regions, when subjects were engaged in a motor task. .
%@language en
%3 duque-fMRITimeSeriesAnalysis.pdf