OSCR

Cerebellar dysconnectivity in schizophrenia spectrum: task-based functional connectivity analysis and cognitive stratification.

Overview

Authors: Diana S M Rosales-Gurmendi1, Sadam Hussain1,2, Eduardo de Avila-Armenta1, Gerardo A Fumagal-González1, Jorge A Garza-Abdala1, Alma A Pedro-Pérez3, Jasiel Toscano3, Jose G Tamez-Peña1,2
  1. School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
  2. School of Medicine and Health Sciences, Tecnologico de Monterrey, Monterrey, Nuevo Leon, Mexico
  3. School of Engineering, Pontificia Universidad Católica de Chile, Santiago, Chile
Journal: Frontiers in psychiatry, volume 17, article 1796599
Dates: received 26 January 2026; accepted 9 March 2026; published online 2 April 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.3389/fpsyt.2026.1796599 · PMID 42006050 · PMCID PMC13083132 · OpenAlex W7147452240
Open access: gold, a free copy (OpenAlex)
Status: data only
Categories: fMRI (modality), human (organism), schizophrenia / psychosis (population), cognitive (subfield)
Methods: Spectral & time-frequency, Statistics, Smoothing, state filtering, decompositions, Preprocessing, Connectivity, fMRI & imaging
Keywords: cerebellum, cognitive subtypes, functional connectivity, schizophrenia, working memory
Topic: Functional Brain Connectivity Studies (Cognitive Neuroscience, Neuroscience), according to OpenAlex
Citations: not cited yet (Europe PMC); 37 references in the paper

Abstract

Introduction: Schizophrenia is conceptualized as a disorder of brain network dysconnectivity, yet relationships between neural alterations, cognitive deficits, and genetic risk remain unclear.

Methods: We examined 86 participants: schizophrenia patients (SCZ), unaffected siblings (SCZ-SIB), healthy controls (CON), and control siblings (CON-SIB). We used a multiscale graph-theoretic analysis of task-based fMRI during N-back working memory and unsupervised clinical-cognitive clustering.

Results: We found that reduced cerebellum-sensorimotor (CER-SM) and cerebellum-cingulo-opercular (CER-CO) connectivity during the 1-back condition robustly discriminated SCZ from CON (AUC = 0.89). Critically, these dysconnectivity patterns were linked to clinical state, present in SCZ vs. SCZ-SIB but absent in SCZ-SIB vs. CON-SIB, suggesting illness expression rather than familial risk. Unsupervised clustering revealed three data-driven subtypes with distinct cognitive- symptomatic profiles: subtype 1 with relative preservation of verbal abilities (predominantly controls), subtype 2 with marked fluid cognitive impairment (enriched in SCZ), and subtype 3 with intermediate performance with working memory sparing (mixed composition). Cerebellar-cortical hypoconnectivity showed graded alignment across these profiles.

Discussion: These findings demonstrate that cerebellar dysconnectivity is most detectable under moderate cognitive load, tracks with clinical state, and covaries with transdiagnostic cognitive profiles, advancing circuit-based understanding of schizophrenia heterogeneity.

Reproduced under the paper's license (CC BY), from the paper cited above.

Code

The paper links to its data, not to its authors' code: see the Data section.

Tracing map

A tracing map links a paper to the code its authors published: this paper has none, so it has no map.

Data

Datasets cited

Data availability statement

Publicly available datasets were analyzed in this study. This data can be found here: https://openneuro.org/datasets/ds000115/versions/00001.

Reproduced under the paper's license (CC BY), from the paper cited above.

Versions

The history of this record: each version stored by the harvester or made by a correction of its authors or of the maintainers of its code, and what changed in its facts. The texts of the paper (its abstract, its availability statements) are not part of it; versions that changed only those are not listed.

Version 1, 28 September 2026: the first record

Recorded: type, language, journal, volume, pages, dates, 8 authors, 5 keywords, 28 references.

Cite

This paper

Rosales-Gurmendi, D. S. M., Hussain, S., de Avila-Armenta, E., Fumagal-González, G. A., Garza-Abdala, J. A., Pedro-Pérez, A. A., Toscano, J., & Tamez-Peña, J. G. (2026). Cerebellar dysconnectivity in schizophrenia spectrum: task-based functional connectivity analysis and cognitive stratification. Frontiers in psychiatry, 17, 1796599. https://doi.org/10.3389/fpsyt.2026.1796599

BibTeX

@article{rosalesgurmendi2026cerebellar,
author = {Rosales-Gurmendi, Diana S M and Hussain, Sadam and de Avila-Armenta, Eduardo and Fumagal-González, Gerardo A and Garza-Abdala, Jorge A and Pedro-Pérez, Alma A and Toscano, Jasiel and Tamez-Peña, Jose G},
title = {{Cerebellar dysconnectivity in schizophrenia spectrum: task-based functional connectivity analysis and cognitive stratification}},
journal = {Frontiers in psychiatry},
year = {2026},
month = apr,
volume = {17},
pages = {1796599},
publisher = {Frontiers Media SA},
issn = {1664-0640},
doi = {10.3389/fpsyt.2026.1796599},
url = {https://doi.org/10.3389/fpsyt.2026.1796599},
pmid = {42006050},
pmcid = {PMC13083132}
}

RIS

TY - JOUR
AU - Rosales-Gurmendi, Diana S M
AU - Hussain, Sadam
AU - de Avila-Armenta, Eduardo
AU - Fumagal-González, Gerardo A
AU - Garza-Abdala, Jorge A
AU - Pedro-Pérez, Alma A
AU - Toscano, Jasiel
AU - Tamez-Peña, Jose G
TI - Cerebellar dysconnectivity in schizophrenia spectrum: task-based functional connectivity analysis and cognitive stratification
T2 - Frontiers in psychiatry
J2 - Front Psychiatry
PY - 2026
DA - 2026/04/02
VL - 17
SP - 1796599
SN - 1664-0640
PB - Frontiers Media SA
DO - 10.3389/fpsyt.2026.1796599
UR - https://doi.org/10.3389/fpsyt.2026.1796599
LA - en
ER -

CSL-JSON

{
"id": "10.3389/fpsyt.2026.1796599",
"type": "article-journal",
"title": "Cerebellar dysconnectivity in schizophrenia spectrum: task-based functional connectivity analysis and cognitive stratification",
"container-title": "Frontiers in psychiatry",
"author": [
{
"family": "Rosales-Gurmendi",
"given": "Diana S M"
},
{
"family": "Hussain",
"given": "Sadam"
},
{
"family": "de Avila-Armenta",
"given": "Eduardo"
},
{
"family": "Fumagal-González",
"given": "Gerardo A"
},
{
"family": "Garza-Abdala",
"given": "Jorge A"
},
{
"family": "Pedro-Pérez",
"given": "Alma A"
},
{
"family": "Toscano",
"given": "Jasiel"
},
{
"family": "Tamez-Peña",
"given": "Jose G"
}
],
"container-title-short": "Front Psychiatry",
"volume": "17",
"page": "1796599",
"DOI": "10.3389/fpsyt.2026.1796599",
"PMID": "42006050",
"PMCID": "PMC13083132",
"ISSN": "1664-0640",
"publisher": "Frontiers Media SA",
"URL": "https://doi.org/10.3389/fpsyt.2026.1796599",
"language": "en",
"issued": {
"date-parts": [
[
2026,
4,
2
]
]
}
}

Similar papers

The papers with a page that share the most with this one: the tools found in their code, their categories, datasets, cited references and authors, the rarest counting most.

[1] doi:10.3389/fnins.2026.1817743
Estimation of head motion in structural MRI and its impact on cortical morphometry.
Journal: Frontiers in neuroscience
In common: OpenNeuro ds000115
[2] doi:10.1111/ejn.70675
Childhood Trauma and Frontoparietal Network Connectivity During Working Memory Task Performance in Individuals With Schizophrenia and Healthy Participants.
Journal: The European journal of neuroscience
In common: schizophrenia / psychosis, fMRI, cognitive, 1 reference
[3] doi:10.1038/s41598-026-50969-2 [code]
Disrupted neural response timing and duration during hand movement preparation in schizophrenia spectrum disorder: An fMRI study.
Journal: Scientific reports
In common: schizophrenia / psychosis, fMRI, 1 reference
[4] doi:10.1007/s11571-026-10481-9
Social communication and brain network properties: cognitive predictors and modulation by autistic traits.
Journal: Cognitive neurodynamics
In common: fMRI, cognitive, 2 references
[5] doi:10.1002/hbm.70496 [code]
Transdiagnostic Profiles of BOLD Signal Variability in Autism and Schizophrenia Spectrum Disorders: Associations With Cognition and Functioning.
Journal: Human brain mapping
In common: schizophrenia / psychosis, fMRI, cognitive, 1 reference
[6] doi:10.1523/jneurosci.2178-25.2026 [code]
Increased Attentive Use Is Linked to More Idiosyncratic Functional Connections.
Journal: The Journal of neuroscience : the official journal of the Society for Neuroscience
In common: fMRI, 2 references
[7] doi:10.1002/hbm.70627 [code]
Investigating the Contribution of Molecular-Enriched Functional Connectivity to Brain-Age Analysis.
Journal: Human brain mapping
In common: fMRI, 2 references
[8] doi:10.1038/s41597-026-07377-y [code]
An open-access multi-site fMRI dataset for investigating conscious visual perception.
Journal: Scientific data
In common: fMRI, 2 references
[9] doi:10.1002/hbm.70512 [code]
Precision Imaging for Intraindividual Investigation of the Reward Response.
Journal: Human brain mapping
In common: fMRI, 2 references
[10] doi:10.1007/s10548-026-01249-9
What Static Connectivity Misses: Dynamic Alpha-Band Brain Network States in First-Episode Psychosis.
Journal: Brain topography
In common: schizophrenia / psychosis, 1 reference

Contribute

The authors of this paper can claim it, correct its record and validate its tracing map, and the maintainers of its code (its owner, or a public member of its organization) correct what it says of their repository; anyone signed in can ask for its removal. Every request goes to OSCR's own machine, which answers it; your account page follows them.

Sign in with ORCID to claim this paper as one of its authors, correct its record or validate its tracing map: when the paper's metadata lists your ORCID iD, you are recognized at once. Maintainers of its code: sign in with GitHub, then claim the repository on your account page.

Request its removal

To ask OSCR to remove this record, the copies of its authors' scripts or its tracing map, use the removal request page: signed in, you say who you are, what to remove and why, then review and confirm the request. Published rules decide every request (how).

Discussion, reproductions, activity

Discussion: questions and error reports about this paper and its code, from signed-in readers and its authors. It opens with sign-in.

Reproductions: reports from readers who ran the authors' code: what they reproduced, with which environment, commit and data. It opens with sign-in.

Activity: what happens around this paper: new versions of its record, its map's validation, discussions and reproductions. It opens with sign-in.