Glutamate Receptors and Synaptic Physiology in Developing Neural Circuits
Bibliographic record
Abstract
The major excitatory neurotransmitter in the CNS is glutamate. It binds to and activates fast, ligand-gated receptors such as AMPA and NMDA ionotropic receptors. AMPA receptors are composed of 4 subunits (GluA1–4) with varying stoichiometries. The subunit composition of the AMPA receptors imparts different properties to the receptor channels such as time course, conductance states, rectification, and calcium permeability. In some preparations AMPA receptors appear to switch subunits during development, but the reasons for this switch and the mechanisms that underlie it remain largely unknown. To address these issues, we examine synaptic plasticity phenomena related to AMPA receptor subunit composition in embryonic zebrafish. Specifically, we record AMPA receptor activity associated with Mauthner neurons. This is one of the rare vertebrate preparations in which one can study developmental synaptic plasticity in the same cell from organism to organism.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.002 |
| 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 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".