Evidence map›Paper›PMID 37963722›Full record

ArticleJournal of neurology, neurosurgery, and psychiatry2024

Unravelling the influence of affective stimulation on functional neurological symptoms: a pilot experiment examining potential mechanisms.

Susannah Pick, Ls Merritt Millman, Emily Ward, Eleanor Short, Biba Stanton, Aat Simone Reinders, Joel S Winston, Timothy R Nicholson, Mark J Edwards, Laura H Goldstein and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neurology, neurosurgery, and psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% of its field
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 6 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
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

14 authors at 2 institutions in 1 country.

Susannah PickKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK susannah.pick@kcl.ac.uk.ORCID 0000-0003-2001-6723
Ls Merritt MillmanKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0002-7872-0679
Emily WardKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.
Eleanor ShortKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.
Biba StantonKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0003-2275-9109
Aat Simone ReindersKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.
Joel S WinstonKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0002-3957-0612
Timothy R NicholsonKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0002-2350-2332
Mark J EdwardsKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0002-8283-9015
Laura H GoldsteinKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0001-9387-3035
Anthony S DavidInstitute of Mental Health, University College London, London, UK.ORCID 0000-0003-0967-774X
Trudie ChalderKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0003-0775-1045
Matthew HotopfKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0002-3980-4466
Mitul A MehtaKing's College London, Institute of Psychiatry, Psychology and Neuroscience, London, UK.ORCID 0000-0003-1152-5323
King's College London · GBInstitute of Mental Health · GB

Funding

Medical Research Council
6 · The paper itself

Abstract

backgroundDifferences in affective processing have previously been shown in functional neurological disorder (FND); however, the mechanistic relevance is uncertain. We tested the hypotheses that highly arousing affective stimulation would result in elevated subjective functional neurological symptoms (FNS), and this would be associated with elevated autonomic reactivity. The possible influence of cognitive detachment was also explored.

methodIndividuals diagnosed with FND (motor symptoms/seizures; n=14) and healthy controls (n=14) viewed Positive, Negative and Neutral images in blocks, while passively observing the stimuli ('Watch') or detaching themselves ('Distance'). The FND group rated their primary FNS, and all participants rated subjective physical (arousal, pain, fatigue) and psychological states (positive/negative affect, dissociation), immediately after each block. Skin conductance (SC) and heart rate (HR) were monitored continuously.

resultsFNS ratings were higher after Negative compared with Positive and Neutral blocks in the FND group (p=0.002, η

conclusionsEmotionally significant events may exert an influence on FNS which is related to autonomic activation rather than altered subjective affect or perceived arousal. This influence may be modulated by cognitive detachment. Further work is needed to determine the relevance and neural bases of these processes in specific FND phenotypes.

Indexed as

Conversion DisorderArousalDissociative DisordersHumansSeizuresAUTONOMICCONVERSION DISORDERFUNCTIONAL NEUROLOGICAL DISORDERNEUROPSYCHIATRYPSYCHOLOGY, EXPERIMENTAL

Identifiers

PMID37963722
PMCPMC11041613
OpenAlexW4388668116

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.