Figure 2
From: Pheromones modulate reward responsiveness and non-associative learning in honey bees

Pheromone exposure affects sucrose responsiveness. Cumulative proportions of bees showing PER when presented with the six sucrose solutions of increasing concentration (0.1%, 0.3%, 1%, 3%, 10% and 30% w/w). Bees exposed to geraniol (n = 252) and 2H (n = 61) were respectively more and less responsive than control bees exposed to mineral oil (n = 254), (GLMM, geraniol vs oil: p = 0.002; 2H vs oil: p < 0.001). IPA (n = 174) had no significant effect on sucrose responsiveness (IPA vs oil: p = 0.46).