Evidence map›Paper›PMID 31993210›Full record

ArticleCerebellum & ataxias2020

Abnormal cerebellar volume in somatic vs. non-somatic delusional disorders.

Joshua Krämer, Markus Huber, Christina Mundinger, Mike M Schmitgen, Roger Pycha, Erwin Kirchler, Christian Macina, Martin Karner, Dusan Hirjak, Katharina M Kubera and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Cerebellum & ataxias, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.6field-weighted citation impact, top 31% 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

6 citing papers in PubMed, 13 citations in OpenAlex.

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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 4 institutions in 4 countries.

Joshua Krämer *1Department of General Psychiatry, Center for Psychosocial Medicine, Heidelberg University, Heidelberg, Germany.
Markus Huber *Department of Psychiatry, General Hospital Bruneck, Bruneck, South Tyrol Italy.
Christina Mundinger1Department of General Psychiatry, Center for Psychosocial Medicine, Heidelberg University, Heidelberg, Germany.
Mike M Schmitgen1Department of General Psychiatry, Center for Psychosocial Medicine, Heidelberg University, Heidelberg, Germany.
Roger PychaDepartment of Psychiatry, General Hospital Bruneck, Bruneck, South Tyrol Italy.
Erwin KirchlerDepartment of Psychiatry, General Hospital Bruneck, Bruneck, South Tyrol Italy.
Christian MacinaDepartment of Psychiatry, General Hospital Bruneck, Bruneck, South Tyrol Italy.
Martin KarnerDepartment of Radiology, General Hospital Bruneck, Bruneck, South Tyrol Italy.
Dusan Hirjak4Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
Katharina M Kubera1Department of General Psychiatry, Center for Psychosocial Medicine, Heidelberg University, Heidelberg, Germany.
Malte S Depping1Department of General Psychiatry, Center for Psychosocial Medicine, Heidelberg University, Heidelberg, Germany.
Dmitry Romanov5Department of Psychiatry and Psychosomatics, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.
Roland W Freudenmann6Department of Psychiatry and Psychotherapy III, Ulm University, Ulm, Germany.
Robert Christian Wolf1Department of General Psychiatry, Center for Psychosocial Medicine, Heidelberg University, Heidelberg, Germany.ORCID 0000-0002-5358-5212
Heidelberg University · DEKrankenhaus Bruneck · ITSechenov University · RUUniversität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThere is abundant evidence for cerebellar involvement in schizophrenia, where the cerebellum has been suggested to contribute to cognitive, affective and motor dysfunction. More recently, specific cerebellar regions have also been associated with psychotic symptoms, particularly with auditory verbal hallucinations. In contrast, little is known about cerebellar contributions to delusions, and even less is known about whether cerebellar involvement differs by delusional content.

methodsUsing structural magnetic resonance imaging at 1.0 T together with cerebellum-optimized segmentation techniques, we investigated gray matter volume (GMV) in 14 patients with somatic-type delusional disorder (S-DD), 18 patients with non-somatic delusional disorder (NS-DD) and 18 patients with schizophrenia (SZ) with persistent non-somatic delusions. A total of 32 healthy controls (HC) were included. Between-group comparisons were adjusted for age, gender, chlorpromazine equivalents and illness duration.

resultsCompared to HC, S-DD patients showed decreased GMV in left lobule VIIIa. In addition, S-DD patients showed decreased GMV in lobule V and increased GMV in bilateral lobule VIIa/crus II compared to NS-DD. Patients with SZ showed increased GMV in right lobule VI and VIIa/crus I compared to HC. Significant differences between HC and NS-DD were not found.

conclusionsThe data support the notion of cerebellar dysfunction in psychotic disorders. Distinct cerebellar deficits, predominantly linked to sensorimotor processing, may be detected in delusional disorders presenting with predominantly somatic content.

Indexed as

CerebellumDelusional infestationDelusionsParanoidSUITVoxel-based morphometry

Identifiers

PMID31993210
PMCPMC6971987
OpenAlexW3006291345

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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.