How the Eon Team Produced a Virtual Embodied Fly

3 days ago

Eon Systems PBC co-founder Dr. Alex Wissner-Gross shared their work on an embodied fly, which has garnered significant attention.
The project integrates existing neuroscience research, including the adult fly connectome, connectome-constrained brain models, and neuromechanical fly body models.
The virtual fly uses a leaky integrate-and-fire (LIF) model with 140,000 neurons and 50 million synaptic connections, based on the FlyWire effort.
Sensory inputs like taste and touch are mapped to specific neurons, enabling behaviors such as grooming, feeding, and foraging.
The fly's body is simulated using NeuroMechFly, a neuromechanical model with 87 joints, running on the MuJoCo physics engine.
Descending neurons control the fly's behaviors, though the current interface is sparse compared to the biological fly's complexity.
Limitations include simplified neuron models, lack of internal state dynamics, and challenges in brain-body coupling.
The project aims to serve as a research platform for connectome-constrained sensorimotor control and brain model embodiment.
Eon Systems invites collaboration and feedback on their framework for brain emulation fidelity.

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