PCT No. PCT/JP94/00218 Sec. 371 Date Oct. 12, 1994 Sec. 102(e) Date Oct. 12, 1994 PCT Filed Feb. 4, 1994 PCT Pub. No. WO94/19348 PCT Pub. Date Sep. 1, 1994.A cognition enhancer comprising, as an effective ingredient, a bicyclic compound containing nitrogen atom having the general formula (I): <IMAGE> (I) or a physiologically acceptable salt thereof.
Cognition enhancing quinuclidine compound