Fig. 2.

Light modulates recognition memory performance. Recognition memory performance on object and odour trials under 5-lux, 50-lux, and 500-lux lighting conditions in the 5 implanted mice. Panels A and B show the light-intensity-dependent disruptive effects on object and odour recognition memory performance at the group level. Panels C and D show that in 8 out of the 10 cases, light exerted intensity-dependent disruptive effects on performance at the individual level. Panels E and F show that in the remaining 2 cases, light exerted intensity-dependent facilitative effects on performance.