Activation Detection on fMRI Time Series Using Hidden Markov Model
Figure 6
Voxel time series, voxels “A” and “B” are detected by both SPM t-test and 2-state HMM likelihood ratio test; voxels “C,” “G,” and “H” are detected by SPM t-test only. “D,” “E," and “F” are detected by 2-state HMM likelihood ratio test only.
