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Record W2982317315 · doi:10.1503/jpn.190073

Ketamine for chronic depression: two cautionary tales

2019· article· en· W2982317315 on OpenAlexaffvenue
Jeanne Talbot, Jennifer L. Phillips, Pierre Blier

Bibliographic record

VenueJournal of Psychiatry and Neuroscience · 2019
Typearticle
Languageen
FieldMedicine
TopicTreatment of Major Depression
Canadian institutionsRoyal Ottawa Mental Health CentreUniversity of Ottawa
Fundersnot available
KeywordsKetamineDepression (economics)Treatment-resistant depressionMedicinePsychiatryPsychologyAnesthesiaMajor depressive disorderCognition

Abstract

fetched live from OpenAlex

A growing body of literature has shown the effectiveness of ketamine for treating chronic depression. How long the beneficial effects of repeated ketamine last once infusions are stopped, however, remains largely unknown. Understanding the challenges that ensue after ketamine cessation can help clinicians optimally guide patients who opt for ketamine treatment and minimize the associated risks. In this commentary, we discuss some unexpected data gathered from participants of a pilot study on the effects of adjunctive ketamine infusion for resistant depression.

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)0.024
metaresearch head score (Gemma)0.101
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Case report · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.032
Threshold uncertainty score0.126

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0240.101
Meta-epidemiology (narrow)0.0020.001
Meta-epidemiology (broad)0.0030.003
Bibliometrics0.0020.001
Science and technology studies0.0040.010
Scholarly communication0.0050.010
Open science0.0060.003
Research integrity0.0320.072
Insufficient payload (model declined to judge)0.0020.002

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 head0.015
GPT teacher head0.306
Teacher spread0.290 · 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 designCase report
Domainnot available
GenreEmpirical

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

Citations12
Published2019
Admission routes2
Has abstractyes

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