Evidence map›Paper›PMID 41059647›Full record

ArticleMovement disorders clinical practice2026

Long-Term Follow-Up of Patients with Mass Social Media-Induced Illness Presenting with Functional Tic-like Behaviors.

L Kathrin Hartung, Simon Schmitt, Carolin Fremer, Carolin S Klages, Natalia Szejko, Kirsten R Müller-Vahl

Abstract read
In one paragraph

Article in Movement disorders clinical practice, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. A systematic review to characterize functional tic-like behaviors.Frontiers in child and adolescent psychiatry · 2026
    Pooled it
  2. Treatment of Functional Neurological Disorders.Journal of clinical neurology (Seoul, Korea) · 2026
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

L Kathrin Hartung *Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany.ORCID https://orcid.org/0009-0002-4798-7757
Simon Schmitt *Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany.
Carolin FremerClinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany.
Carolin S KlagesClinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany.
Natalia Szejko *Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany.
Kirsten R Müller-Vahl *Clinic of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Germany.ORCID https://orcid.org/0000-0002-7181-7419

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOnly little is known about the prognosis of functional tic-like behaviors (FTLB), especially in the subgroup of patients with mass social media-induced illness (MSMI-FTLB).

objectivesTo provide data of long-term follow-up (FU) of a carefully characterized group of patients with MSMI-FTLB to identify influencing factors such as treatment, exposure to social media, and comorbidities.

methodsAt FU (mean = 26.3 (range = 11-51) months after baseline), 30 patients (mean age = 22.5 years, n = 18 (60%) female) underwent an extensive semi-structured interview.

resultsThe majority of patients reported symptom improvement (n = 19, 63%) or complete remission (n = 7, 23%) of MSMI-FTLB, while only a minority reported no change (n = 4, 13%), and none worsening of symptoms. Factors associated with better prognosis were younger age, male sex, diagnosis early after disease onset, less lifetime psychiatric comorbidities, absence of depression, and discontinuation of secondary gain, while diagnostic acceptance or changes in daily social media time had no influence on prognosis. Of n = 26 patients (87%) receiving psychotherapy, n = 15 (58%) rated it as "helpful," but neither the presence of therapy nor the type of therapeutic approach was associated with significant differences in symptom improvement. At FU, n = 13 (43%) patients received medication, which most (n = 11, 85%) felt ineffective. N = 11 patients (36.7%) indicated that simply knowing the correct diagnosis was helpful in terms of symptom improvement.

conclusionsIn line with previous reports in FTLB, patients with MSMI-FTLB also have a good prognosis overall, especially in the case of younger age, male sex, early diagnosis, discontinuation of secondary gain, less psychiatric comorbidities, and absence of depression.

Indexed as

Social MediaTicsAdolescentAdultFemaleFollow-Up StudiesHumansMaleMiddle AgedPrognosisYoung Adultfunctional movement disorderfunctional tic‐like behaviorslong‐term follow‐upprognosisTourette's syndrome

Identifiers

PMID41059647
PMCPMC13042426

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.