Two premotor areas (6aα and 6aγ) involved in motor preparation and execution during visually guided locomotion in the cat
Bibliographic record
Abstract
We examined the contribution of areas 6aα and 6aγ of the cat pericruciate cortex to the control of visually guided locomotion by recording single unit activity from layer V of the cortex while cats stepped over obstacles attached to a moving belt. We found populations of neurons in both areas (53% in area 6aα; 25% in area 6aγ) that modified their discharge activity in advance of and/or during the steps over the obstacle. In both areas we found some cells that modified their activity only when the contralateral or ipsilateral limb was the first to step over the obstacle and others that discharged regardless of which limb was the first to step over. Retrograde tracer injections into each area showed differential projections from the primary motor cortex (area 4γ), with area 6aα receiving inputs from rostromedial 4γ (controlling more proximal movements) and 6aγ receiving inputs from more rostrolateral (controlling more distal movements) regions of 4γ. Area 6aα, in addition, received inputs from area 6iffu. Both regions received inputs from area 5 of the posterior parietal cortex. The results support a role for each area in the planning and execution of visually guided gait modifications.
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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 | 0.000 |
| 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) | 0.000 | 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".