TY - GEN
T1 - Exploring consistent functional brain networks during free viewing of videos via sparse representation
AU - Lv, Cheng
AU - Hu, Xintao
AU - Han, Junwei
AU - Cheng, Gong
AU - Li, Xiang
AU - Guo, Lei
AU - Liu, Tianming
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/7/29
Y1 - 2014/7/29
N2 - Functional brain mapping under naturalistic stimuli such as video watching has been receiving greater interest in recent years. We presented a sparse representation based data-driven strategy to explore consistent functional brain networks during free viewing of continuous video streams. Compared with the traditional independent component analysis (ICA) based method, the novelty of our method is taking the intrinsic sparsity of whole-brain fMRI data into consideration and identify those highly descriptive dictionary atoms for sparse representation of fMRI signals. Our experimental results demonstrate that meaningful consistent functional brain networks can be mapped during free viewing of video stream by our method. We also compared the proposed method with ICA-based method.
AB - Functional brain mapping under naturalistic stimuli such as video watching has been receiving greater interest in recent years. We presented a sparse representation based data-driven strategy to explore consistent functional brain networks during free viewing of continuous video streams. Compared with the traditional independent component analysis (ICA) based method, the novelty of our method is taking the intrinsic sparsity of whole-brain fMRI data into consideration and identify those highly descriptive dictionary atoms for sparse representation of fMRI signals. Our experimental results demonstrate that meaningful consistent functional brain networks can be mapped during free viewing of video stream by our method. We also compared the proposed method with ICA-based method.
KW - Functional brain networks
KW - Naturalistic stimuli
KW - Sparse representation
UR - http://www.scopus.com/inward/record.url?scp=84927931643&partnerID=8YFLogxK
U2 - 10.1109/isbi.2014.6867880
DO - 10.1109/isbi.2014.6867880
M3 - 会议稿件
AN - SCOPUS:84927931643
T3 - 2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
SP - 349
EP - 352
BT - 2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
Y2 - 29 April 2014 through 2 May 2014
ER -