Estimated marginal means of B-SIT scores correct and BVRT-V error scores. (a) Mean difference in number of B-SIT scored correctly between KS, FL, and healthy control group. Olfactory deficits appeared to be absent from the control and FL groups, but present in the KS subjects, as predicted. (b) Mean difference in BVRT-V raw scores between KS, FL, and healthy control group. The number of errors made, relative to age and IQ, were high in both patient groups, with the healthy control participants scoring at normal performance, making few or no errors on the memory assessment.