Nor should the task rest primarily on the shoulders of our able military leadership and the highly regarded current No. 2, Robert Ford, who is fluent in Arabic and has served several tours in Iraq already.
The feasibility of such a task rests on a suitably defined master formula, which is expressed in terms of a set of Grassmann and a set of Feynman parameters.
The corresponding time course was strongly negatively correlated with the task-rest-sequence (Pearson's r = −0.91; p<0.0001), that is the activation of the network decreased during an n-back block and increased during rest phases.
It was found that, compared to the pre-task resting period, the post-task resting fcMRI revealed a significantly higher (p = 0.002, N = 24) cross correlation coefficient (CC) between left and right motor cortices.
For example, both LV2 and the direct contrast of Rest1 and Rest2 showed more FC for the left medial temporal region, medial frontal/SMA, and lingual gyrus during the post-task resting run.
Main focus was given to activities other than the driving task: rest and sleeping, object storage, feeding, personal care, communication, entertainment.
Fractal scaling of the pre- and post-task resting time series in activated and deactivated regions was estimated for contiguous segments of 128 time-points by a wavelet-based maximum likelihood estimator of the Hurst exponent (H) [2].
> The full fMRI session consisted of four tasks, resting state and an anatomical scan.
Participants completed trials within a session of approximately 2 hours in duration, with practice trials to familiarize themselves with the task and rest breaks permitted as required.
The second analysis assessed the 'effective connectivity' as a function of the task versus rest: The raw timeseries data were multiplied by +1 for signal reflecting task periods (i.e., delayed by 6 s), and −1 for signal related to rest periods.
