Retrograde amnesia following hippocampal lesions in the shock-probe conditioning test
Bibliographic record
Abstract
The present experiment examined the role of the hippocampal formation (HPC) in long-term memory of an association between an object and a fear-eliciting event. Rats either received sham or neurotoxic lesions of the HPC 1 or 14 days after learning that contacting a wire-wrapped probe (i.e., object) elicits a shock. After recovery from the surgery, rats were re-exposed to the wire-wrapped probe and burying and avoidance of the probe were assessed and used as memory and fear indices. Regardless of the learning-to-surgery interval, the rats with hippocampal lesions buried and avoided the probe significantly less than sham rats and no more than rats that never experienced shock from the probe. These findings suggest that the lesions caused severe retrograde amnesia and that the HPC has a long-lasting role in memory of a discrete stimulus associated with a fear-eliciting event.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".