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Record W4407111360 · doi:10.1136/jnnp-2024-bnpa.17

Rapid onset functional tic like behaviours

2025· article· en· W4407111360 on OpenAlexaffabout
Tamara Pringsheim

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldPsychology
TopicObsessive-Compulsive Spectrum Disorders
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsComputer science

Abstract

fetched live from OpenAlex

<h3>Biography</h3> Dr. Tamara Pringsheim is a Professor with the Department of Clinical Neurosciences, Psychiatry, Pediatrics and Community Health Sciences at the University of Calgary. She is the program lead for the Tourette and Pediatric Movement Disorder program at Alberta Children’s Hospital and the Deputy Director of the Mathison Centre for Mental Health Research and Education. She also works as an evidence-based medicine methodologist for the American Academy of Neurology. She is the president of the Tourette OCD Alberta Network, a nonprofit organization that supports people living with Tourette syndrome and OCD in Alberta, and provides education and training on these disorders to healthcare providers. <h3>Objective</h3> To describe the clinical characteristics, phenomenology and outcomes of Rapid Onset Functional Tic Like Behaviours (FTLBs) in young people. <h3>Methods</h3> The presenter will review published data on the clinical characteristics, phenomenology and evolution of FTLBs arising in young people around the world during and after the COVID-19 pandemic. <h3>Results</h3> Since mid-2020, clinicians at Tourette syndrome clinics around the world have experienced an unprecedented number of referrals of young people who have developed the rapid onset of FTLBs. Case series from several countries have been published, with common phenomenological characteristics between samples. Affected individuals typically range from 12 to 25 years of age. The majority of cases reported were assigned female at birth. Symptom onset is sudden, typically reaching a peak in severity within hours to days. Functional motor tic like behaviours are dominated by large amplitude arm movements, clapping, throwing objects and hitting oneself or others. Functional vocal tic like behaviours include an assortment of random words and phrases, and socially inappropriate or offensive words and phrases. Patients with FTLBs present with high symptom severity and impairment scores and are likely to meet the clinical threshold for an anxiety disorder or major depressive disorder. Theories for such magnification of FTLBs during the COVID-19 pandemic include the possibility of social contagion illness spread through the medium of social media. Additional stressors through the pandemic, including school and extracurricular activity closures, ‘virtual schooling’ and associated academic pressures, social isolation and increased tensions at home during lockdown measures are believed to contribute to this clinical phenomenon. Emerging data on short- and medium-term outcomes suggests symptom improvement in the majority of individuals over a period of months, with treatment focusing on comorbid anxiety and depressive symptoms. <h3>Conclusions</h3> Rapid onset FTLBs have several distinguishing characteristics, appear strongly socially influenced, and show a positive response to treatment of distress, anxiety and mood disorders.

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 distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.801
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

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)0.0430.002

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 head0.016
GPT teacher head0.295
Teacher spread0.279 · 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; both teacher heads agree on what is shown here.

Study designObservational
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

Citations0
Published2025
Admission routes2
Has abstractyes

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