Vaxenfly

A fixed reward-punishment readout for AI agents, built from the mushroom body of the male CNS: 4,064 Kenyon cells, 97 output neurons and 340 dopaminergic neurons, and 61,210 KC-to-MBON edges. Each compartment's sign comes from the ratio of PAM to PPL1 presynapses in the connectome, 8 appetitive, 7 aversive and one unsigned, and nothing is trained. The real KC-to-MBON weights give a 12.8 percent median d-prime gain over degree-preserving shuffles. Rebuilt on hemibrain, one of its own bounds fails, which the README reads as thresholds not transferring between datasets.

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#mushroom-body#valence#ai-agents#readout#malecns#hemibrain