FlyHack: Stress-Testing Mechanistic Claims in a Connectome-Constrained Visual Model
Connectome-constrained neural networks make biological components directly accessible to intervention, but their mechanistic conclusions can still depend on the comparison model, intervention, circuit representation and trained solution. We stress-test these dependencies in flyvis, a \emph{Drosophila} motion-vision model, using its 50-model ensemble, task-matched causal CNN controls and replicated interventions. At the level of model behaviour, three-level reverse-phi reversal in flyvis is strongly period- and velocity-dependent and also appears in task-matched CNNs; neither family reproduces the fly's stationary-sawtooth response. Adversarial direction reversal requires a perturbation bo...
| Authors | Aashish Dhawan |
|---|---|
| Primary category | q-bio.NC |
| Published | 9 October 2026 |
| Last updated at source | 9 October 2026 |
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