Two fixed voice volume tests did not confirm shared effects in six SEEG patients and 24 fMRI adults

We tested repeatable spatial response diversity in separate public human SEEG and fMRI studies. A volume method fits no response axes. A local plan fixed two endpoints before reserved scores: third volume in 37 voice-related sounds and area in nine nonspeech human voices. Tests used six SEEG patients, 16 B2021 adults, and eight NH2015 adults. All 30 people had positive third-volume scores. Means were 0.020204, 0.014127, and 0.009778. The SEEG 95% person interval was [-0.000200,0.040608]. The shared Holm p was 0.051555, so the fixed test failed. The nonspeech test also failed, p=0.8465. It had positive fMRI evidence and a negative, uncertain SEEG mean. Every negative score remains. Exact models show that independent repeats can give positive mean and majority volumes when all sound means are constant. Thus repeat independence alone does not identify mean-response rank. Under a common mean and errors independent across sounds and repeats, the volume gives a conditional rank test. Nonlinear readout, source selection, clinical sampling and vascular filters limit neural interpretation. Independent simplex determinants reproduced all 60 person endpoints within 1.56e-15. The package gives code, proofs, exact source pins and terms, all results, figures, local plans, and repeat steps. Original neural arrays remain external. No positive shared neural or causal claim is made.

SEEG · fMRI · human auditory cortex · voice responses · affine rank · repeat noise · negative result · simplex volumes