Fixed tests did not confirm shared links between neural and report heat curvature in 70 EEG and 23 fMRI adults

We tested whether differences between people in nonlinear neural heat responses track differences in their report curves. Separate public studies supplied scalp EEG and BOLD fMRI. Development used 25 EEG and ten MRI adults. A local code lock preceded tests in 70 other EEG and 23 other MRI adults. A direction fitted from neural dose responses gave a quadratic contrast. The test removed each curve's mean and linear score, plus EEG dose-grid terms. Partial correlations were 0.225 and 0.402; 95% person bootstrap intervals were [-0.062, +0.476] and [-0.142, +0.729]. The fixed shared rule failed. A separate seven-level EEG experiment gave 0.263, with interval [-0.318, +0.715]; identity independence is unverified. An unequal-variance model failed the initial permutation rule before reserved scores, so retained amendments added bootstrap and robust-error gates. All original outcomes remain. These data do not establish absent pain information, a stable pain trait or a cause. The package gives code, source pins and terms, transformed person scores, uncertainty, figures and repeat steps. Original MRI arrays remain external.

pain · EEG · fMRI · curve shape · partial correlation · unequal variance