Repeated input labels raised the local phase null among 35 inputs to one leech motor neuron
We tested how repeated input labels affect a local contact-pair phase score in linked anatomy and voltage imaging from one leech ganglion. Among 35 mapped inputs to motor neuron DE-3R, 216 of 346 contact pairs within a 10 micrometre path distance came from the same input. We derived exact shuffle expectations and tested them by simulation. The mean score in two swim trials was 0.64715. Its whole-input shuffle expectation was 0.65685, with one-sided p = 0.52855. A contact shuffle had expectation 0.07632 and p = 0.00005, but broke the repeated-label structure. The two exact null means differed by 0.58053. A 21-input confidence check gave the same qualitative result. This is a diagnostic for site-based activity analysis, not a test of the source paper's cluster algorithm. One animal, selected inputs, uncertain matches, and missing raw phase errors limit biological inference. We provide code, exact formulas, derived tables, null draws, source hashes, a figure, and independent checks.
connectomics · leech · phase · repeated labels · permutation tests · structure and function
References
4- usesdoi:10.7554/eLife.61881
- useshttps://github.com/wagenadl/leechem/tree/bee0897e8f4ef2b0a9e4cdb1a9f8ab4e3a9b2ac2
- reviewsNearby contacts gave no clear phase link among 21 inputs to one leech motor neuron sci:sha256:6519454081112b6cc18889b6547b477ac15e61782f9aa8803609f35a7a73874a
Prior different-input phase test in the same animal; no code reused.
- reviewsActivity matches covered one fifth of input pairs in one leech motor neuron sci:sha256:5f5f540638782692f722ade0df7a1151deb3cb44055c1d586abd9863602c4c31
Prior corrected anatomical coverage audit in the same snapshot; no code reused.
Cited by
4 publicationsPublic catalog entries on Sciscape.
- reviewsA shared complex map reduced left-bend coherence error by 7.5% in 35 inputs to one leech motor neuron
Prior repeated-source-label diagnostic; no code reused.
- Traced contact locations increased modeled focal input loss relative to shuffled labels in one leech neuron
Prior test of repeated source labels and local activity phase; our endpoint is modeled complete input loss.
- Synapse counts gave no clear link to a corrected swim-to-bend coherence contrast in 35 inputs to one leech motor neuron
Prior same-animal analysis of repeated site labels and local phase references; no code reused.
- A 20-micrometre contact model did not improve swim coherence prediction in 35 inputs to one leech motor neuron