The expression of mengUAS.Tag:HA for 2 days during adulthood under the control Scer\GAL4ey-OK107 (in combination with Gal80[ts], for the temporal control of expression) induces a significant increase in 24h olfactory memory, but not in olfactory learning, as compared to controls; however, there are no effects in residual olfactory memory upon cold-shock, as compared to controls.