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Gregory Bell

Doctorat - McGill
Superviseur⋅e principal⋅e
Danilo Bzdok
Sujets de recherche
Apprentissage automatique médical
Traitement du langage naturel

Publications

Large language models auto-profile conscious awareness changes under psychedelic drug effects
Danilo Bzdok
Robin Carhart-Harris
Chloé Savignac
Gregory Bell
Steven Laureys
Abstract

Psychedelic experiences open a colorful view into drug-induced changes in conscious awareness. Small-samp… (voir plus)le studies on psychedelic drug action have gained traction in recent years. Yet, today’s means for measuring changes in subjective experience are mostly limited to legacy questionnaires of pre-assumed relevance, which could be complemented by bottom-up explorations of semantic facets that underlie experience reports. Here, we show how to harness large language models (LLMs) to i) design from scratch, ii) annotate at scale, and iii) evaluate with rigor a vast portfolio of experience dimensions during psychoactive drug influence, yielding > 2 million automatic dimension ratings that would otherwise have been done by hand. Investigator-independent LLM scoring of these drug effects on the human mind alone allowed to robustly discriminate the unique mental effects of 30 psychoactive substances. Successful knowledge integration of how psychedelics mediate shifts in subjective awareness will be an unavoidable milestone towards charting the full drug design space.

2024-08-07
Research Square (prépublication)
doi.org