Same Brain Data, Varied Conclusions: 18 Teams Clash on Ripples

Eighteen teams analyzed the same Neuropixels dataset and largely disagreed on ripple density across brain areas, despite using defensible methods. The divergence arose from differences in how concepts were defined, which algorithms were used, and the parameters chosen, revealing substantial analytical variability. The effort spurs the CON²PHYS project to quantify conceptual disagreement and push for transparency, reference pipelines, and reporting standards to ensure conclusions are robust to analytical choices.