Individual Differences in the Sea-Finding Mechanism of Hatchling Leatherback Turtles
Bibliographic record
Abstract
When hatchling leatherback turtles, Dermochelys coriacea, are unilarerally blindfolded, some circle toward their open eyes and some toward their covered eyes. If tests were performed immediately after one eye had been blindfolded, in cases where the turtle circled toward the open eye there was a transient potentiation of circling at the start of the test. In contrast, in cases where the turtle circled toward the covered eye, circling was decreased at the start of the test. Similar transient phenomena occurred when the position of a blindfold was reversed from one eye to another. Following removal of a blindfold, circling toward the previously covered eye was increased. The transient effects in all these tests waned by about 2 min. There was no evidence of transient circling tendencies in turtles that were tested after a unilateral blindfold had been in position for 4 min. The results suggest that ipsilateral and contralateral retinotectal turning systems differ in strength among individual turtles and individual eyes, and that following unilateral blindfolding there is a potentiation only of the ipsilateral turning system associated with stimulation of the still open eye.
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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 | 0.001 |
| 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".