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Effects of object motion on visual acuity in honeybees
Rishabh Desai1, Matthew A Garratt1, Mandyam V Srinivasan2
1School of Engineering and Technology, University of New South Wales - Canberra, Campbell, ACT 2612, Australia.
The Journal of Experimental Biology
|March 13, 2026
Summary
Honeybee vision is enhanced by object motion, allowing them to perceive finer details than previously thought. This study shows moving objects improve visual acuity in honeybees, impacting their decision-making.
Area of Science:
- Animal behavior
- Visual neuroscience
- Insect vision
Background:
- Object motion is a key visual cue, but its effect on animal visual acuity is understudied.
- Previous research on honeybee visual acuity primarily used stationary stimuli.
Purpose of the Study:
- To investigate if object motion influences the visual acuity of honeybees (Apis mellifera).
- To determine if motion cues can override learned preferences and enhance shape discrimination.
Main Methods:
- A Y-maze behavioral assay was used for binary choice experiments.
- Honeybees were trained to stimuli and then tested with stationary and moving targets of varying shapes and sizes.
- Discrimination performance was measured based on stimulus size and motion condition.
Main Results:
- Honeybees could discriminate shapes >1.9° visual angle for stationary targets.
- Moving stimuli were preferred even at small visual angles (0.44°).
- Motion cues enhanced shape discrimination, enabling recognition at 0.44° visual angle when both targets were moving.
Conclusions:
- Object motion significantly enhances honeybee visual acuity beyond established limits.
- Motion acts as a salient cue, driving choice and improving perception of fine spatial details.
- Dynamic visual cues are crucial for understanding the sensory limits in animal vision research.
