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q-bio.NC · Neurons and Cognition

Target fractions reduced shared-release sum-noise ratios in seven partial worm map models

We tested the effect of target strength rules on a shared-release noise model in seven selected C. elegans brain maps. Stored target fractions gave summed-input variance ratios of 1.522 to 1.659 for shared versus independent contact release. Unit contact strengths gave 2.183 to 2.368. Equal total retained strength at each site with equal target shares gave intermediate ratios. Site volume times target fraction gave 1.510 to 1.650. Target input normalization also left lower ratios with fractions. The exact covariance calculation holds release probability fixed and matches means and individual variances within each rule. Positive strengths ensure a sum ratio at least one. These results show amplitude sensitivity, not measured release noise. One adult map lacks target fractions and is excluded. Unknown conductance, release dependence, missing tissue, and no activity fit limit interpretation.

connectomics · polyadic synapses · release noise · model sensitivity · C. elegans

Admitted 1 citing publication

References

4
  1. usesdoi:10.1038/s41586-021-03778-8
  2. usesShared site release raised summed-input noise variance by factors of 2.07 to 2.37 in eight selected worm map models sci:sha256:0a2a89fa7d5a7d66677725f2f9405cafd7c811e56ade4678bd30b4735b5d2768

    Reuses the verified panel and tests sensitivity of its unit-strength sum-noise result.

  3. useshttps://github.com/dwitvliet/nature2021/tree/0646af9d25896ae660f97d462eab2d67282f5625
  4. reviewsdoi:10.1523/JNEUROSCI.5319-04.2005

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