Click-evoked otoacoustic emissions: Response amplitude is associated with circulating testosterone levels in men.
Bibliographic record
Abstract
In rhesus monkeys, the magnitude of the cochlear response to auditory stimuli (click-evoked otoacoustic emissions, [CEOAEs]) is correlated with seasonal changes in circulating testosterone levels. The present study investigated the association between circulating testosterone and CEOAE production in men. CEOAEs were measured in 67 men and 37 women, and saliva was analyzed to quantify bioavailable testosterone. A sex difference in CEOAE response amplitude was found, confirming previous reports. In agreement with the monkey work, seasonal variation in the CEOAE response amplitude also was identified. CEOAEs were greater in summer and fall, the seasons that showed the lowest levels of circulating testosterone. On an individual basis, men who had higher levels of testosterone at the time of assessment exhibited smaller CEOAE response amplitudes. These findings support previous data from rhesus macaques and are consistent with the prospect of an activational effect of testosterone in the human cochlea.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".