Neural mechanisms to incorporate visual counterevidence in self motion estimation.

ABSTRACT: In selecting appropriate behaviors, animals should weigh sensory evidence both for and against specific beliefs about the world. For instance, animals measure optic flow to estimate and control their own rotation. However, existing models of flow detection can confuse the movement of external objects with genuine self motion. Here, we show that stationary patterns on the retina, which constitute negative evidence against self rotation, are used by the fruit fly Drosophila to suppress inappropriate stabilizing rotational behavior. In silico experiments show that artificial neural networks optimized to distinguish self and world motion similarly detect stationarity and incorporate negative evidence. Employing neural measurements and genetic manipulations, we identified componen

SUBMITTER: Tanaka R 

PROVIDER: S-EPMC9881891 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature