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Record W7133087776

Modelling Hyperexcitability in Human Cerebral Organoids: A Platform for Epilepsy Drug Testing

2022· dissertation· W7133087776 on OpenAlexaff
Alexandra Constance Santos

Bibliographic record

VenueTSpace · 2022
Typedissertation
Language
FieldNeuroscience
TopicNeuroscience and Neuropharmacology Research
Canadian institutionsToronto Rehabilitation Institute
Fundersnot available
KeywordsEpilepsyOrganoidHuman brainDrugDrug developmentElectrophysiologyElectroencephalography
DOInot available

Abstract

fetched live from OpenAlex

Epilepsy is a complex neurological condition characterized by recurrent seizures, that affects 1% of the population. A third of people with epilepsy do not respond to drugs and there is not one drug that treats all; thus, better models of epilepsy are needed for drug development. Human cerebral organoids resemble the 3D complexity of the human brain and have the potential to augment current drug development pipelines. In the present work, human cerebral organoids are used along with electrophysiological methods to explore various means of inducing seizures. The resulting activity is characterized through signal processing and manual event analysis. Furthermore, this hyperexcitable activity is investigated in its response to current anti-seizure drugs. These findings demonstrate the presence of hyperexcitable changes in the cerebral organoid tissue, which supports the use of organoids as a platform for modelling epilepsy, as well as provides a framework for testing anti-seizure drug efficacy.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.001
Threshold uncertainty score0.003

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

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.

Opus teacher head0.135
GPT teacher head0.417
Teacher spread0.282 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreMethods

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".

Quick stats

Citations0
Published2022
Admission routes1
Has abstractyes

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