Global inhibition in head-direction neural circuits: a systematic comparison between connectome-based spiking neural circuit models.

ABSTRACT: The recent discovery of the head-direction (HD) system in fruit flies has provided unprecedented insights into the neural mechanisms of spatial orientation. Despite the progress, the neural substance of global inhibition, an essential component of the HD circuits, remains controversial. Some studies suggested that the ring neurons provide global inhibition, while others suggested the Δ7 neurons. In the present study, we provide evaluations from the theoretical perspective by performing systematic analyses on the computational models based on the ring-neuron (R models) and Δ7-neurons (Delta models) hypotheses with modifications according to the latest connectomic data. We conducted four tests: robustness, persistency, speed, and dynamical characteristics. We discovered that the two models l

SUBMITTER: Chang N 

PROVIDER: S-EPMC10353971 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature