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. 2002 Jan;23(1):49–58.

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American Saciety of Neuroradiology

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Fig 2. — Finger-tapping task in a patient with a left temporal glioma.

A–C, fMR images. The image processed with reference function analysis (A) shows activation in the sensorimotor cortices and sensorimotor area. The image processed with ICA (B) shows a similar pattern of activation. The intersect map of pixels identified on both the image processed conventionally and that processed with ICA (C) has a high CR (83%). Note the similarity of the three maps.

D, Time course plot of the activated voxel shows that the changes in signal are temporally correlated with task performance.

E, Temporal pattern of a selected ICA component (representing the highest z score) has a .64 correlation between the time course of the component and the boxcar reference function.