BioOSS: A Bio-Inspired Oscillatory State System with Spatio-Temporal Dynamics

Zhongju Yuan (Universiteit Gent) · Geraint Wiggins (Vrije Universiteit Brussel) · Dick Botteldooren (Universiteit Gent)
bio-inspired oscillatory state systembiological neuronsdampingdeep learning architecturesinterpretabilitylateral spread of activitymembrane-potential-like unitsoscillatory dynamicsperceptron modelsprefrontal cortexpropagation velocitiespyramidal cellsspatio-temporal interactionstrainable parameterswave-like propagation dynamics

Today’s deep learning architectures are primarily based on perceptron models, which do not capture the oscillatory dynamics characteristic of biological neurons. Although oscillatory systems have recently gained attention for their closer resemblance to neural behavior, they still fall short of modeling the intricate spatio-temporal interactions observed in natural neural circuits. In this paper, we propose a bio-inspired oscillatory state system (BioOSS) designed to emulate the wave-like propagation dynamics critical to neural processing, particularly in the prefrontal cortex (PFC), where complex activity patterns emerge. BioOSS comprises two interacting populations of neurons: p neurons, which represent simplified membrane-potential-like units inspired by pyramidal cells in cortical columns, and o neurons, which govern propagation velocities and modulate the lateral spread of activity. Through local interactions, these neurons produce wave-like propagation patterns. The model incorporates trainable parameters for damping and propagation speed, enabling flexible adaptation to task-specific spatio-temporal structures. We evaluate BioOSS on both synthetic and real-world tasks, demonstrating superior performance and enhanced interpretability compared to alternative architectures.