The log and penalty terms versus candidate order k and the bound BD versus the temporal data size.

<p>A) The variation of the negative log-likelihood with k at different noise levels. B) The penalty terms of AIC, KIC and MDL versus k. C) The variation of the negative log-likelihood with candidate order k at different temporal data size with SD = 1. D) The variation of the bound <i>BD</i> versus the temporal data size.</p

The variation of means of the 50 estimations with the temporal data size(A–C) and FWHM of Gaussian filter(D–F) at three different white noise levels.

<p>A) SD = 1. B) SD = 2. C) SD = 3. D) SD = 1. E) SD = 2. F) SD = 3.</p

Seven simulated sources.

<p>A) The actived spatial regions. B) The corresponding time courses.</p

Results of the simulated data with varied Gaussian white noise levels.

<p>A) Means of the 50 estimations versus SD of Gaussian noises. B) Accuracy rate versus SD of Gaussian noises. The curves in the figures represent the estimation of different criteria as is specified in the legend.</p

Results of simulated data with varied AR(1) noise levels.

<p>A–C) Means of the 50 estimations versus AR(1) coefficient at three levels of SD of AR(1) noise. D–F) Means of the 50 estimations versus SD of AR(1) noise at three AR(1) correlation levels.</p

Results of the real resting fMRI data.

<p>A) Estimations of fMRI data with different added Gaussian noise levels. B) Estimations of fMRI data with different added AR(1) coefficient levels (SD = 2). C) Estimations of fMRI data with different added SD of AR(1) noise (q = 0.5). D) Estimations of data with different temporal data size. E) Estimations of data spatially smoothed by Gaussian filter with different FWHM.</p

The variation of <i>D_k</i> versus candidate order k.

<p>A) Different AR(1) coefficient levels. B) Different SD of AR(1) noise. C) Different temporal data size. D) Different FWHM.</p

The correlation between the tapping rate and or for the experimental group.

<p>Note. Abbreviations: rPPL–right posterior parietal lobe; SMA–supplementary motor area; rStria–right Striatum; lStria–left Striatum.</p

The connectivity degree of pre-tests and post-tests for all ROIs in the motor execution task of the experimental group.

<p>(A) The surface visualization of all 13 ROIs with node sizes indicating their relative value of . Red indicates that of the ROIs were significantly altered after motor imagery learning, while blue indicates that of the ROIs were not significantly altered after motor imagery learning. (B) of pre-tests and post-tests for all ROIs (* represents the significant alterations, corrected p<0.05).</p

Mean button press rate (A) and mean number of errors (B) for pre-tests and post-tests of the experimental group and the control group.

<p>Mean button press rate (A) and mean number of errors (B) for pre-tests and post-tests of the experimental group and the control group.</p