Fig. 3. Frequency of stimulus selection plotted against the total number of response decisions (landings and rejections). (A) Honeybee acquisition (±1 s.d.) whilst being trained with differential conditioning to target and distracter stimuli representing similar complex scenes that might be encountered in a forest. Acquisition in experiment 1 is indicated by circles and in experiment 2 by squares. Experiment 2 used a different target and distractor combination; acquisition was very similar, and triangles and bold line show pooled data. (B) Pooled data for the frequency with which bees made abort flights (bees approached a stimulus and then turned away and left without making any contact); the solid line shows a significant negative correlation of aborts to target stimuli with increasing experience (see text for statistics), and the broken line shows no significant correlation of aborts to the distractor stimuli.