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Electrophysiologically Informed Neuromorphic Spiking Networks for Spatial Navigation
Proceedings of the First Workshop on NeuroAI Multimodal Intelligence @ AAAI 2026, PMLR 308:1-9, 2026.
Abstract
Spatial memory underlies the mental encoding, storage, and retrieval of spatial representations that support navigation in intricate environments. Conventional models of navigation accentuate the role of place and grid cells as principal neural substrates. However, recent findings in teleost fish, the most diverse vertebrate class, suggest that navigation in these species depends primarily on boundary vector cells (BVCs) and hydrostatic pressure (HP) cues. In this study, we designed a neuromorphic spiking neural network (SNN) for spatial navigation, directly informed by electrophysiological recordings from the goldfish telencephalon. Within this architecture, BVC populations mediated obstacle avoidance, while HP-sensitive units provided a vertical reference for goal-oriented trajectory planning. Our results demonstrate that efficient navigation can emerge without explicit positional coding, consistent with experimental observations of low firing rates and limited neuronal populations in the fish telencephalon. The proposed framework thus establishes a compact and biologically grounded model for fish-inspired neuromorphic navigation that remains robust and scalable across naturalistic conditions.