Home > Papers from 2014 > The details of visual matching in ants

The details of visual matching in ants

The statistics of natural images, combined with the resolution and spectral preferences of ant’s eyes, explain why the skyline (the high contrast visual boundary, where terrestrial objects meet the sky) is a strong source of visual information for navigating ants. However, we do not know the details of how ants compare currently perceived and remembered skylines in order to derive a direction. Julle‐Daniere et al (2014) test one possibility – the skyline height model. In this scheme one makes comparisons between current and remembered skyline height across different visual regions. An ant should be attracted in the direction of visual regions where the perceived height is currently lower than their memory and repelled from regions where the opposite is true. The experimental evidence presented here is consistent with this model although doesn’t represent a conclusive proof, therefore more experiments are needed.

Julle‐Daniere, E., Schultheiss, P., Wystrach, A., Schwarz, S., Nooten, S. S., Bibost, A. L., & Cheng, K. (2014). Visual Matching in the Orientation of Desert Ants (Melophorus bagoti): The Effect of Changing Skyline Height. Ethology.
Categories: Papers from 2014
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