Low levels of estradiol facilitate, whereas high levels of estradiol impair, working memory performance on the radial arm maze.
Bibliographic record
Abstract
Previous investigations of estradiol's effects on learning and memory yielded equivocal results. This study was designed to determine whether these inconsistencies were due to dose-dependent effects of estradiol on different memory processes. Ovariectomized female rats were injected daily with estradiol benzoate (EB; 0.32, 1.00, or 5.00 microg) or vehicle. Approximately 3 hr after injection, rats were run on a hippocampus-dependent working/reference memory version of the radial arm maze. Total number of working (WME), reference, and combined working/reference memory errors were scored. Compared with vehicle, 1.00 or 5.00 microg EB (high physiological) impaired performance by increasing the number of WME, whereas 0.32 microg EB (low physiological) facilitated performance by decreasing the number of WME. Taken together, these data demonstrate a dose-dependent effect of EB on working memory.
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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 | 0.000 |
| 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".