Fiddler crabs (Afruca tangeri) detect second-order motion in both intensity and polarization.

ABSTRACT: Motion vision is vital for a wide range of animal behaviors. Fiddler crabs, for example, rely heavily on motion to detect the movement of avian predators. They are known to detect first-order motion using both intensity (defined by spatiotemporal correlations in luminance) and polarization information (defined separately as spatiotemporal correlations in the degree and/or angle of polarization). However, little is known about their ability to detect second-order motion, another important form of motion information; defined separately by spatiotemporal correlations in higher-order image properties. In this work we used behavioral experiments to test how fiddler crabs (Afruca tangeri) responded to both second-order intensity and polarization stimuli. Fiddler crabs responded to a number of di

SUBMITTER: Smithers SP 

PROVIDER: S-EPMC11450093 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature