A fixed class test of repeat change directions did not pass in six SEEG patients and 24 fMRI adults

We tested whether spatial patterns of repeat changes differ between 28 speech/song sounds and 128 other sounds. Separate public human studies supplied SEEG high-gamma amplitude and BOLD fMRI estimates. We canceled stable sound means by subtraction, removed change size and global sign, and excluded marginal-site products. An established two-sample statistic used only products from different sounds. Development used two patients and four adults. A local plan and code lock preceded tests in six other patients, 16 other B2021 adults and eight NH2015 adults. Mean scores were 0.00589, 0.02026 and 0.01577. Their 95% person Student intervals were [-0.00125,0.01303], [0.00456,0.03597] and [0.00921,0.02233]. The fixed shared rule failed. A positive result across modalities was not confirmed. The shared p was 0.34375. Removing the mean repeat change left all three person intervals across zero. All negative people and controls remain. One scalar gain per repeat, common to both classes, gives an exact score of 2 in a model. Fixed mixing also converts independent site variance changes into a positive score. These examples do not identify the human cause. Source selection, shared schedules, separate cohorts, sparse electrical coverage and unequal measurement filters limit scope. The contribution gives a cross-modal benchmark, code, source pins and terms, all results, figures, arithmetic and source checks, and repeat instructions. Original neural arrays remain external. No common neural cause or causal effect was established.

auditory cortex · SEEG · fMRI · repeat variation · sound class · directional second moments · two-sample test