Distributed Network Sensing as an Escape Strategy

Physarum polycephalum reliably detects and escapes harmful dynamic pH conditions only when its fluidic vein network exceeds a size threshold and remains connected.

• Why it matters: Decentralized swarms, tissues, and robots need a way to convert spatial environmental cues into coordinated action without centralized control, but fluid networks have been limited.
• What they did: The study exposed Physarum polycephalum vein networks to dynamic pH environments, varying spatial extent and connectivity, and used fluidic and electrochemical control to generate different morphologies.
• The result: Above the size threshold, network reconfiguration and local contractions redistribute fluid to integrate competing spatial stimuli and reposition into favorable regions, enabling large-scale adaptation in complex environments.

AI summary of the abstract · may contain errors · not medical advice · read the paper.