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Colour vision

After several decades of research on how (and if) animal perceive colour, and the threshold at which animals can detect differences between colours, we still know little about how animals process highly contrasting colours. Second, how these colours interact in complex patterns that provide signaling or camouflage mechanisms is poorly understood. Given the ecology and evolutionary importance of animal colour patterns, and the ubiquity of colour patterns in nature, we are hoping to fill these knowledge gaps.

We are using Picasso Triggerfish in behavioural experiments to understand how visual models work when colours go beyond the discrimination thresholds.

Triggerfish conducting an Ishihara colour vision test. Here they are search for coloured target spots that are different from the others to receive a food reward from underneath the paper.