FIG 3. Superposed color images obtained in a 41-year-old woman with dyskinesia. Diagnosis has not yet been established.

A, Axial image. The white matter lateral to the posterior horn of the lateral ventricle appears to be divided into four layers. They are probably, from medial to lateral, the tapetum (red, arrowheads), internal sagittal stratum (dark blue, open arrowheads), external sagittal stratum (bright blue, arrows), and white matter containing the superior longitudinal fasciculus (red, open arrows). The pulvinar of the thalamus appears yellowish green (*).

B, Coronal image. The posterior limbs of the internal capsules are identified as red bands (arrowheads). The external and the extreme capsules (cannot be separated) are seen as reddish sheets (arrows). The superior longitudinal fasciculi appear greenish blue (open arrows). The cingula appear blue (open arrowheads). The inferolateral parts of the temporal lobes show artifact because of the failure to correct severe distortion.