Effectiveness of Cerebellar Circuitry Modulation in Schizophrenia: A Systematic Review

Andrea Escelsior, Martino Belvederi Murri, Pietro Calcagno, Alice Cervetti, Rosangela Caruso, Enrico Croce, Luigi Grassi, Mario Amore

Research output: Contribution to journalArticle

Abstract

Structural and functional abnormalities of the cerebellum have been observed in schizophrenia since the first neuroimaging studies. More recently, the functions of the cerebellum have been extended beyond sensorimotor control to include participation in higher-level cognition and affective regulation. Consistently, the "cognitive dysmetria" theory posits that dysfunctions of cortical-subcortical-cerebellar circuitry may be crucial for the pathogenesis of different clinical features of schizophrenia. This conceptual framework offers a set of testable hypotheses, now that various tools to exert direct modulation of cerebellar activity are available. We conducted a systematic review of studies examining the effects of cerebellar modulation in schizophrenia. Two independent authors conducted a search within PubMed for articles published up to April 2019 and identified 10 studies (three randomized controlled trials, two open-label studies, two case reports, one preclinical study) describing the effects of cerebellar circuitry modulation in patients with schizophrenia or animal models. The majority of interventions were uncontrolled and used stimulation of the cerebellar vermis, using transcranial magnetic stimulation or transcranial direct-current stimulation. Most studies detected improvements after cerebellar modulation. Clinical changes mostly pertained the domains of negative symptoms, depressive symptoms and cognitive functions. In conclusion, few studies examined the effects of cerebellar modulation in schizophrenia but yielded promising results. This approach may hold therapeutic potential, pending further methodologically robust replication.

Original languageEnglish
Pages (from-to)977-986
Number of pages10
JournalThe Journal of nervous and mental disease
Volume207
Issue number11
DOIs
Publication statusPublished - Nov 1 2019

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Schizophrenia
Cerebellum
Cognition
Cerebellar Ataxia
Transcranial Magnetic Stimulation
PubMed
Neuroimaging
Randomized Controlled Trials
Animal Models
Depression
Therapeutics

ASJC Scopus subject areas

  • Psychiatry and Mental health

Cite this

Effectiveness of Cerebellar Circuitry Modulation in Schizophrenia : A Systematic Review. / Escelsior, Andrea; Belvederi Murri, Martino; Calcagno, Pietro; Cervetti, Alice; Caruso, Rosangela; Croce, Enrico; Grassi, Luigi; Amore, Mario.

In: The Journal of nervous and mental disease, Vol. 207, No. 11, 01.11.2019, p. 977-986.

Research output: Contribution to journalArticle

Escelsior, Andrea ; Belvederi Murri, Martino ; Calcagno, Pietro ; Cervetti, Alice ; Caruso, Rosangela ; Croce, Enrico ; Grassi, Luigi ; Amore, Mario. / Effectiveness of Cerebellar Circuitry Modulation in Schizophrenia : A Systematic Review. In: The Journal of nervous and mental disease. 2019 ; Vol. 207, No. 11. pp. 977-986.
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