Description of the odors used as conditioned stimuli (CS) in each different conditioning paradigm.

Footnotes: The ph refers to the proportion of 1-hexanol present in a binary mixture of 1-hexanol and 2-octanone. The (+) represents a paradigm where a honeybee received conditioning with only one odor in association with 1.5M sucrose reward. The (+ +) paradigm represents conditioning with two odors, each associated with 1.5M sucrose. The (+ −) paradigm represents conditioning with two odors where one is associated with 1.5M sucrose and the other is associated with 1.5M salt.