Figure 3.

The automatic performance index system (APIS). (A) Photograph of an APIS conditioning chamber with a honeybee inside (white arrow). The orange light was activated to visualize the bee and the electrodes inside the chamber. The bee was introduced through the entrance in the middle. The lateral hoses introduce the two odors, whereas those in the middle separate the chamber into halves by introducing air flow. The LEGO™ platform is cooled by fans, and the chamber is connected to a computer. (B) Schematic representation of the experimental setup, modified from the original reported version [33]. The syringes marked (+) are the odor and air balance syringes (odors: green = 1% 1-hexanol in mineral oil, red = 1% 1-decanol in mineral oil). The syringes marked (–) contain mineral oil as a blank.