The effect of palatinose on mental concentration in humans.

We investigated the effect of palatinose on mental concentration using the Uchida-Kraepelin psycho diagnostic test. A significant increase (p<0.01) in calculation ability was observed in both the sucrose and palatinose groups after administration. Although calculation ability in the sucrose group at 150 min decreased from the level achieved at 90 min in the same group, that in the palatinose group at 150 min decreased only slightly from the level achieved at 90 min. At the same time points, significant increases were observed even when 5 g of palatinose was administered.