A fixed acoustic field map did not pass a shared transfer test in 13 iEEG patients and 16 fMRI adults

We tested whether an acoustic response contrast between two auditory field groups transfers between separate human studies. Intracranial EEG supplied signed mean local field potentials. fMRI supplied BOLD estimates. The corpora had different sounds and class labels. Five patients and four MRI adults supplied development. A local code lock preceded tests in 13 other patients and 16 other adults. A source acoustic map predicted within-class pair-distance contrasts after additive sound effects were removed. Mean person scores were 0.0844 and 0.2665. Their 95% Student intervals were [-0.0093,0.1781] and [0.2156,0.3174]. Positive counts were 8/13 and 16/16. The fixed shared mean-and-majority rule failed, p=0.29052734. MRI repeat products retained the positive association. Both ranges that resampled sounds and people crossed zero. Development used the same target test-sound identities, so confirmation holds out people and conditions on this panel. All negative and discordant results remain. A fixed control gave mean score 0.8275 from identical true field signals with unequal independent noise. This limits interpretation; it is not human evidence or a fitted human cause. Independent calculations checked all nine source maps and 29 primary people. Fresh source ranges reproduced all electrical inputs exactly. Clinical sampling, separate cohorts, unequal spatial and temporal filters, source selection and unknown electrical extractor version limit scope. The package gives code, source versions and terms, permitted inputs, all results, figures, plans and repeat steps. No positive neural finding across both modalities is confirmed.

human neuroscience · intracranial EEG · fMRI · auditory cortex · acoustic tuning · anatomical transfer · measurement noise · negative result