Gaze tracking of large-billed crows (Corvus macrorhynchos) in a motion capture system.

ABSTRACT: Previous studies often inferred the focus of a bird's attention from its head movements because it provides important clues about their perception and cognition. However, it remains challenging to do so accurately, as the details of how they orient their visual field toward the visual targets remain largely unclear. We thus examined visual field configurations and the visual field use of large-billed crows (Corvus macrorhynchos Wagler 1827). We used an established ophthalmoscopic reflex technique to identify the visual field configuration, including the binocular width and optical axes, as well as the degree of eye movement. A newly established motion capture system was then used to track the head movements of freely moving crows to examine how they oriented their reconstructed visual fiel

SUBMITTER: Itahara A 

PROVIDER: S-EPMC11007591 | biostudies-literature | 2024 Mar

REPOSITORIES: biostudies-literature