Alteration of Estrogen-Induced Lordosis through Central Administration of Corticosterone in Adrenalectomized-Ovariectomized Rats
Bibliographic record
Abstract
Corticosterone was administered through various modes into several brain regions of estrogen-treated adrenalectomized-ovariectomized female rats. Daily administration of 20 micrograms corticosterone dissolved in propylene glycol through intracerebral cannulae effectively inhibited female sexual receptivity at each of four sites: third ventricle, ventro-medial hypothalamus, preoptic area, and septum. Similar administration of lesser daily doses failed to inhibit receptivity. Implantation of pure crystalline corticosterone also had no effect on receptivity at any site. Beeswax pellets chronically releasing low doses of corticosterone significantly inhibited receptivity when implanted in the medial hypothalamus and preoptic area, with similar nonsignificant trends in the lateral septum and medial forebrain bundle, but had no effect in the dorsal hippocampus or the amygdala. The effective sites are similar to those in which estrogen activity is known to induce receptivity and those in which serotonergic activity is believed to inhibit receptivity, but do not entirely correspond to sites in the brain showing the greatest uptake of corticosterone.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".