Understanding Electro-communication and Electro-sensing in Weakly Electric Fish using Multi-Agent Deep Reinforcement Learning

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Hauptverfasser: Singh, Satpreet H., Johnson-Yu, Sonja, Lu, Zhouyang, Walsman, Aaron, Pedraja, Federico, Turcu, Denis, Sharma, Pratyusha, Saphra, Naomi, Sawtell, Nathaniel B., Rajan, Kanaka
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Veröffentlicht: 2025
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author Singh, Satpreet H.
Johnson-Yu, Sonja
Lu, Zhouyang
Walsman, Aaron
Pedraja, Federico
Turcu, Denis
Sharma, Pratyusha
Saphra, Naomi
Sawtell, Nathaniel B.
Rajan, Kanaka
author_facet Singh, Satpreet H.
Johnson-Yu, Sonja
Lu, Zhouyang
Walsman, Aaron
Pedraja, Federico
Turcu, Denis
Sharma, Pratyusha
Saphra, Naomi
Sawtell, Nathaniel B.
Rajan, Kanaka
contents Weakly electric fish, like Gnathonemus petersii, use a remarkable electrical modality for active sensing and communication, but studying their rich electrosensing and electrocommunication behavior and associated neural activity in naturalistic settings remains experimentally challenging. Here, we present a novel biologically-inspired computational framework to study these behaviors, where recurrent neural network (RNN) based artificial agents trained via multi-agent reinforcement learning (MARL) learn to modulate their electric organ discharges (EODs) and movement patterns to collectively forage in virtual environments. Trained agents demonstrate several emergent features consistent with real fish collectives, including heavy tailed EOD interval distributions, environmental context dependent shifts in EOD interval distributions, and social interaction patterns like freeloading, where agents reduce their EOD rates while benefiting from neighboring agents' active sensing. A minimal two-fish assay further isolates the role of electro-communication, showing that access to conspecific EODs and relative dominance jointly shape foraging success. Notably, these behaviors emerge through evolution-inspired rewards for individual fitness and emergent inter-agent interactions, rather than through rewarding agents explicitly for social interactions. Our work has broad implications for the neuroethology of weakly electric fish, as well as other social, communicating animals in which extensive recordings from multiple individuals, and thus traditional data-driven modeling, are infeasible.
format Preprint
id arxiv_https___arxiv_org_abs_2511_08436
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Understanding Electro-communication and Electro-sensing in Weakly Electric Fish using Multi-Agent Deep Reinforcement Learning
Singh, Satpreet H.
Johnson-Yu, Sonja
Lu, Zhouyang
Walsman, Aaron
Pedraja, Federico
Turcu, Denis
Sharma, Pratyusha
Saphra, Naomi
Sawtell, Nathaniel B.
Rajan, Kanaka
Neural and Evolutionary Computing
Artificial Intelligence
Multiagent Systems
Systems and Control
Neurons and Cognition
Weakly electric fish, like Gnathonemus petersii, use a remarkable electrical modality for active sensing and communication, but studying their rich electrosensing and electrocommunication behavior and associated neural activity in naturalistic settings remains experimentally challenging. Here, we present a novel biologically-inspired computational framework to study these behaviors, where recurrent neural network (RNN) based artificial agents trained via multi-agent reinforcement learning (MARL) learn to modulate their electric organ discharges (EODs) and movement patterns to collectively forage in virtual environments. Trained agents demonstrate several emergent features consistent with real fish collectives, including heavy tailed EOD interval distributions, environmental context dependent shifts in EOD interval distributions, and social interaction patterns like freeloading, where agents reduce their EOD rates while benefiting from neighboring agents' active sensing. A minimal two-fish assay further isolates the role of electro-communication, showing that access to conspecific EODs and relative dominance jointly shape foraging success. Notably, these behaviors emerge through evolution-inspired rewards for individual fitness and emergent inter-agent interactions, rather than through rewarding agents explicitly for social interactions. Our work has broad implications for the neuroethology of weakly electric fish, as well as other social, communicating animals in which extensive recordings from multiple individuals, and thus traditional data-driven modeling, are infeasible.
title Understanding Electro-communication and Electro-sensing in Weakly Electric Fish using Multi-Agent Deep Reinforcement Learning
topic Neural and Evolutionary Computing
Artificial Intelligence
Multiagent Systems
Systems and Control
Neurons and Cognition
url https://arxiv.org/abs/2511.08436