Upstream Solar Wind Driver Regime Nonequivalence Between Two Heart Rate Variability Studies_Dataset

McCraty et al. (2017) reported synchronization of heart rate variability during a continuous observation period from September 6 through October 7, 2011. Mattoni et al. (2020) later attempted to replicate the reported associations during October 24 through November 22, 2017, and found that most associations disappeared after correction for time series autocorrelation. The present secondary environmental analysis tested whether the two investigations occurred under equivalent upstream solar wind driver regimes. Hourly OMNI measures were evaluated with percentile thresholds fixed from the full 2009 through 2026 control distribution. Tier 1 convergence required a strong southward interplanetary magnetic field Bz condition, low plasma beta, and elevated greater than 10 MeV proton flux. Tier 2 added elevated solar wind dynamic pressure, and Tier 3 added a low Alfvén Mach number. Mean Kp was 2.02 in the McCraty period and 1.90 in the Mattoni period, and mean AE was 180.33 nT and 183.61 nT, respectively. Despite those similar terrestrial response averages, the McCraty period contained 8 Tier 1 hours, 5 Tier 2 hours, and 3 Tier 3 hours, whereas the Mattoni period contained zero hours at every tier. The McCraty counts fell at the 94.2nd, 99.1st, and 98.5th percentiles of 1,163 real 30-day climatology windows. Rate standardization to 720 hours retained percentiles of 93.4, 97.9, and 96.8. Among 101 windows matched on season, mean Kp, mean AE, and solar radio flux, the McCraty Tier 1 count fell at the 99th percentile against a matched median of zero. A channel decomposition showed that southward Bz and elevated dynamic pressure were comparable across the two periods, while low plasma beta, elevated proton flux, and low Alfvén Mach number were not. These results establish upstream driver regime nonequivalence. Mattoni et al. provided an important statistical critique, but the 2017 investigation did not reproduce the upstream plasma regime present during the 2011 investigation. Keywords: heart rate variability, solar wind, geomagnetic activity, OMNI, replication, plasma convergence