At 16 selected sites, separate sound sets gave positive covariance shape contrasts in six SEEG patients and 16 fMRI adults
We tested whether sound responses and repeat differences share one proportional spatial covariance shape. Separate public human studies supplied SEEG high-gamma activity and BOLD fMRI. Three separate sound sets fit two directions and measured response and repeat-difference moments. Training alone set the scale. A local code lock preceded tests in six other patients and 16 other adults. Mean contrasts were 0.65158 [0.50730, 0.79587] and 0.52456 [0.45510, 0.59402]. Brackets give 95% person Student limits. All 22 contrasts were positive. The shared mean, majority and positive-signal rule passed, p=0.015625. Eight further fMRI records gave mean 0.44097. Fixed site-count and centering checks kept positive means. Under independent sound samples, proportional population moments give an expected contrast of zero. The contrast is unchanged by invertible coordinate changes within the retained contrast space and arbitrary common spatial offsets. Source selection used all sounds, so the human test is conditional on source processing and selection. A model with sound-dependent repeat gain gave a positive mean without additive error. These results support a measured response-to-fluctuation relation in both modalities. They do not establish intrinsic neural noise, shared generators, or causality. The package gives code, source versions and terms, all results, figures, algebra checks and a fresh source replay.
human auditory cortex · SEEG · fMRI · signal and noise · covariance · generalization · measurement
References
10- usesResponse and repeat difference covariance maps had positive mean agreement for fixed sounds in six SEEG patients and 24 fMRI adults sci:sha256:0d02cd66790b5bf8f545040862eb528607b9a7bf70dde070d1459775e170dedb
We reuse its pinned source access and MIT preparation code. We test a stronger consequence of its common-mixing model.
- usesFor 165 fixed sounds, four-component models reduced repeat error in six SEEG patients and 24 fMRI adults sci:sha256:1ffb0217c831625cbe8fc949585c14c1f283f7e9f1b2113e69122af88fa9a59b
This is the upstream donor for the unchanged repeated-response preparation code.
- Maps of sound tuning and repeat variation were positively related at 24 selected sites per record in six SEEG patients and two fMRI studies sci:sha256:470fe9a3793652ea5dbbfee38bddf515d2659ed52d74a5b9f4ece9f1af74b4d7
Related evidence on tuning and repeat-variation maps in the same public studies; it is not independent evidence for this endpoint.
- usesdoi:10.1371/journal.pbio.3001675
Original human SEEG natural-sound study.
- usesdoi:10.5281/zenodo.6544488
SEEG source deposit, version v1.1; numerical bytes are pinned to the source Git mirror.
- usesdoi:10.1371/journal.pbio.3002366
Public author archive and fMRI derivative methods.
- usesdoi:10.1152/jn.00588.2020
Original B2021 human fMRI study.
- usesdoi:10.1016/j.neuron.2015.11.035
Original NH2015 human fMRI study and sound panel.
- doi:10.1371/journal.pcbi.1012092
Established signal and noise covariance estimation and finite-sample bias.
- doi:10.1371/journal.pcbi.1005508
Established second-moment representation analysis and multivariate noise normalization.
Cited by
6 publicationsPublic catalog entries on Sciscape.
- usesNormalized spatial quantiles separated speech or song from other sounds in six SEEG patients and 16 fMRI adults
We reuse the pinned source manifest, source preparation code, and documented source terms with credit to its upstream chain.
- usesAt 16 selected sites, a fixed repeat covariance rule failed a shared sound identification gain test in six SEEG patients and 16 fMRI adults
We reuse its pinned source access and unchanged MIT preparation code. We test readout benefit, which its covariance-shape endpoint did not establish.
- usesAt 24 selected sites, a fixed test did not confirm a shared response and repeat variation link in SEEG and fMRI
We reuse its pinned source manifest and unchanged fetch and source preparation code; the endpoint differs from its covariance-shape test.
- usesAt 16 sites, repeat changes failed a shared sound group test in six SEEG patients and 16 fMRI adults
Reuses its pinned source manifest and MIT preparation readers with their credit chain; builds a different sound-group test.
- Vocal ranks from repeat changes exceeded chance in six SEEG patients and two fMRI studies, but the fixed baseline rule failed
Related response-to-repeat covariance shape test.
- A fixed class covariance test failed in 14 iEEG patients and six fMRI adults
Related independent-sound covariance-shape test and measurement-interpretation context; the present endpoint compares visual within-class image covariance.