Logo Logo
Hilfe
Hilfe
Switch Language to English

Qiu, Yongrong; Zhao, Zhijian; Klindt, David; Kautzky, Magdalena; Szatko, Klaudia P.; Schaeffel, Frank; Rifai, Katharina; Franke, Katrin; Busse, Laura ORCID logoORCID: https://orcid.org/0000-0002-6127-7754 und Euler, Thomas (9. Dezember 2020): Mouse retinal specializations reflect knowledge of natural environment statistics. In: bioRxiv [PDF, 2MB]

Warnung
Es gibt eine neuere Version des Dokumentes.

Abstract

Pressures for survival drive sensory circuit adaption to a species’ habitat, making it essential to statistically characterise natural scenes. Mice, a prominent visual system model, are dichromatic with enhanced sensitivity to green and UV. Their visual environment, however, is rarely considered. Here, we built a UV-green camera to record footage from mouse habitats. We found chromatic contrast to greatly diverge in the upper but not the lower visual field, an environmental difference that may underlie the species’ superior colour discrimination in the upper visual field. Moreover, training an autoencoder on upper but not lower visual field scenes was sufficient for the emergence of colour-opponent filters. Furthermore, the upper visual field was biased towards dark UV contrasts, paralleled by more light-offset-sensitive cells in the ventral retina. Finally, footage recorded at twilight suggests that UV promotes aerial predator detection. Our findings support that natural scene statistics shaped early visual processing in evolution.

Alle Versionen dieses Dokumentes

Dokument bearbeiten Dokument bearbeiten