Title :
Localizing Retinotopic fMRI Activation in Human Primary Visual Cortex via Dynamic Programming
Author :
Qiu, Anqi ; Rosenau, Benjamin J. ; Greenberg, Adam S. ; Barta, Patrick ; Yantis, Steven ; Miller, Michael I.
Abstract :
This paper presents an approach for automatically delineating the borders of human primary visual cortex and finding ridges of maximal response due to static phase-encoding stimuli on fMRI t-statistical maps via dynamic programming. The sensitivity of such an approach to the choice of initial starting and ending points and the identification of the ridge path over a wide response region are addressed. Moreover, retinotopic maps for left and right visual cortex are shown in a population of two normal subjects
Keywords :
biomedical MRI; brain; dynamic programming; eye; medical image processing; statistical analysis; dynamic programming; human primary visual cortex; retinotopic fMRI activation; ridge path identification; static phase-encoding stimuli; t-statistical maps; Biomedical engineering; Biomedical imaging; Dynamic programming; Filtering; Humans; Magnetic resonance imaging; Neurons; Psychiatry; Psychology; Tiles;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1616668