Left-right partners had smaller downstream response distances than matched pairs in two partial adult worm electrical models

We tested whether left-right neuron partners give less distinct remote responses than matched other pairs in passive electrical models of two partial adult worm maps. At uniform leak 0.1 relative to mean weighted degree, median response-distance ratios were 0.705 for 62 partner pairs in map 7 and 0.673 for 67 in map 8. Controls matched source strength, direct-link presence and approximate mutual count. Removing the mutual link separately for each tested and control pair left ratios of 0.728 and 0.668. Tighter matching and disjoint-source controls also gave ratios below one. A rank-one inverse identity gives exact mutual-link attenuation and passed independent numerical checks. The contrast became smaller at larger leak. The results apply to count-weighted passive models with equal current inputs and fixed observation noise. Partial annotations, assumed conductances, missing chemical and active signaling, and unmeasured noise prevent a claim about biological decoding or transfer across species. Code, graph arrays, provenance, controls and a figure permit reproduction.

electrical connectome · bilateral neurons · source discrimination · passive circuit · matched controls · C. elegans · gap junctions