Without an assumed row match, 28 zebrafish Mauthner axons allow both signs for diameter versus 500 Hz success correlation

We tested how uncertain record identity limits a link between axon structure and transmission success. We used released data from 28 zebrafish Mauthner axons in four age and genotype groups. The source pairs diameter and speed. Separate sheets give three-frequency success profiles and arrival jitter, without explicit shared fish identifiers. We assumed the same animals within each group and allowed every match within that group. At 500 Hz, the pooled diameter-success correlation had exact limits of -0.164 and +0.425. Removing four group means gave limits of -0.714 and +0.838. Listed order gave +0.030 and -0.202, respectively. One profile exchange within a group could reverse either reference sign. An exact subset tool gave all bounds under a limit on changed assignments. Every match preserved diameter-speed pairs and each three-frequency profile. Free endpoints matched rearrangement and assignment solutions. Forty independent integer-program checks passed. A separate source reader checked all 168 measurements. A clean offline repeat matched all numerical files. These are finite-data sensitivity results, not confidence intervals or evidence that source order is wrong. Confirmed fish identities would select the relevant association. The study does not estimate firing capacity or a causal diameter effect. The package preserves the original workbook, provenance, source cells, separate tables, code, proof, endpoint matches, results, figures and repeat instructions.

axon diameter · Mauthner neuron · transmission success · record linkage · partial identification · assignment problem · structure and function · zebrafish