Stronger electrical links gave opposite local and population snapshot detection changes in two passive adult worm models

We tested whether stronger electrical coupling improves detection at a remote neuron while reducing detection from a full population snapshot. We used two partial adult worm electrical maps with 180 common neurons and ten selected input and readout neurons. The passive model had unit leak, equal independent white current noise, and a steady point input. At the primary coupling scale, doubling one existing link raised a remote snapshot detection score by more than 1 percent and lowered the population score by more than 1 percent in 57 of 6812 edge-pair cases in adult 7 and 44 of 4736 in adult 8. A rank-one inverse identity proves that the population snapshot score cannot increase under this link change. The population score at zero frequency is unchanged. These are model results, not measured activity. Partial electrical annotation, assumed noise and conductance, selected neurons, and two animals limit biological use. We provide original code, aggregate evidence, source hashes, retrieval steps, and independent numerical checks. External source tables and record-level extracts are not bundled.

electrical synapses · C. elegans · connectomics · signal detection · noise · observation window