ePoster · Computational Neuroscience
To add or to multiply? The ring-attractor network in the zebrafish heading-direction system.
Siyuan Mei, Hagar Lavian, You Wu, Martin Stemmler, Rubén Portugues, Andreas Herz · Bernstein Conference 2024
A head direction (HD) cell fires when an animal faces a particular azimuthal direction (Taube and Bassett 2003). Recurrent connections among HD cells create a ring-attractor network that continuously encodes HD (Ajabi et al. 2023). Indeed, in the Drosophila HD system, three rings interact to linearly integrate angular head velocity (AHV), with two of the rings receiving countervailing velocity-dependent inputs (Turner-Evans et al. 2017). In contrast, for the desert locust an alternative mechanism has been proposed (Zittrell et al. 2023; Pabst et al. 2024). There, velocity modulates synaptic