Temporal Sorting


Temporal sorting is a way to compare the model's time course with the ICA time course. GIFT provides three ways of entering the regressors. The method of entering regressors is determined by the global variable METHOD_ENTERING_REGRESSORS in "icatb_defaults.m" file. The values for that variable are as follows:

Select 'Temporal' option in Sorting GUI and use SPM design matrix for the model time course. Figure 2 shows the sorted components using Multiple Linear Regression sorting criteria. Here right and left visual are selected as the model time courses (Figure 1) for the visuomotor task (See Experimental Paradigms ). The time course window can be viewed in a separate figure (Expanded view of time course) if clicked on the time course plot. Expanded view of time course window has features like event average, splitting time courses, adjusting ICA time course and Fast Fourier Transform.

Figure 1: Reference time courses

Figure 2: Sorted components using temporal sorting