Felisyn journalhttps://www.felisyn.com/journal2026-10-09T12:00:00ZFelisynMeasuring spontaneous activityhttps://www.felisyn.com/journal/measuring-spontaneous-activity2026-10-09T12:00:00ZTwenty-four published reference values, the code behind their measurement, and a recording mismatch to resolve before the full-model run.The first cat-circuit regressionhttps://www.felisyn.com/journal/first-cat-circuit-regression2026-10-08T12:00:00ZTen exact comparisons passed. The recorded activity, recovered dependencies and failed attempts behind our first successful small-model run.Defining the first regression runhttps://www.felisyn.com/journal/defining-the-first-regression-run2026-10-08T12:00:00ZThe exact comparison, historical dependency candidates and reporting checks for our first cat-circuit simulation.Auditing the model sourceshttps://www.felisyn.com/journal/auditing-the-model-sources2026-10-08T12:00:00ZA complete archive inspection, missing simulation components, and a better-defined route to our first cat-circuit run.Keeping an auditable recordhttps://www.felisyn.com/journal/keeping-an-auditable-record2026-10-07T12:00:00ZHow we will connect each claim to its sources, implementation, measurements and limitations.Before the first simulationhttps://www.felisyn.com/journal/before-the-first-simulation2026-10-07T12:00:00ZDefine the comparison before tuning the model. A proposed protocol for the first reproduction attempt.Choosing a first modelhttps://www.felisyn.com/journal/choosing-a-first-model2026-10-07T12:00:00ZA bounded thalamocortical question, a larger visual-cortex reference, and the files we still need to inspect.Starting with a circuithttps://www.felisyn.com/journal/starting-with-a-circuit2026-10-07T12:00:00ZThe first question is what we can faithfully model—and what that model would allow us to claim.