Evidence map›Paper›PMID 33602980›Full record

ArticleScientific reports2021

Flexible brain dynamics underpins complex behaviours as observed in Parkinson's disease.

Pierpaolo Sorrentino, Rosaria Rucco, Fabio Baselice, Rosa De Micco, Alessandro Tessitore, Arjan Hillebrand, Laura Mandolesi, Michael Breakspear, Leonardo L Gollo, Giuseppe Sorrentino

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing 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

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

  1. Pooled it
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  10. The Virtual Parkinsonian patient.NPJ systems biology and applications · 2025
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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

10 authors.

Pierpaolo Sorrentino *Department of Engineering, University of Naples Parthenope, Centro Direzionale, Isola C4, 80143, Naples, Italy. pierpaolo.sorrentino@collaboratore.uniparthenope.it.
Rosaria Rucco *Institute for Applied Science and Intelligent Systems, National Research Council, Via Campi Flegrei 34, Pozzuoli, Italy.
Fabio BaseliceDepartment of Engineering, University of Naples Parthenope, Centro Direzionale, Isola C4, 80143, Naples, Italy.
Rosa De MiccoDepartment of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", via Luciano Armanni 5, 80138, Naples, Italy.
Alessandro TessitoreDepartment of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", via Luciano Armanni 5, 80138, Naples, Italy.
Arjan HillebrandDepartment of Clinical Neurophysiology and MEG Center, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, The Netherlands, De Boelelaan 1117, 1081HV, Amsterdam, The Netherlands.
Laura MandolesiDepartment of Humanistic Studies, University of Naples Federico II, via Porta di Massa 1, 80133, Naples, Italy.
Michael BreakspearPriority Research Centre for Brain and Mind, The University of Newcastle, Medical Sciences, University Drive, Callaghan, NSW, 2308, Australia.
Leonardo L Gollo *QIMR Berghofer, 300 Herston Rd, Brisbane, QLD, 4006, Australia.
Giuseppe Sorrentino *Institute for Applied Science and Intelligent Systems, National Research Council, Via Campi Flegrei 34, Pozzuoli, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rapid reconfigurations of brain activity support efficient neuronal communication and flexible behaviour. Suboptimal brain dynamics is associated to impaired adaptability, possibly leading to functional deficiencies. We hypothesize that impaired flexibility in brain activity can lead to motor and cognitive symptoms of Parkinson's disease (PD). To test this hypothesis, we studied the 'functional repertoire'-the number of distinct configurations of neural activity-using source-reconstructed magnetoencephalography in PD patients and controls. We found stereotyped brain dynamics and reduced flexibility in PD. The intensity of this reduction was proportional to symptoms severity, which can be explained by beta-band hyper-synchronization. Moreover, the basal ganglia were prominently involved in the abnormal patterns of brain activity. Our findings support the hypotheses that: symptoms in PD relate to impaired brain flexibility, this impairment preferentially involves the basal ganglia, and beta-band hypersynchronization is associated with reduced brain flexibility. These findings highlight the importance of extensive functional repertoires for correct behaviour.

Indexed as

Basal GangliaBrainCase-Control StudiesFemaleHumansMagnetic Resonance ImagingMagnetoencephalographyMaleMiddle AgedNeuroimagingParkinson DiseasePatient Acuity

Identifiers

PMID33602980
PMCPMC7892831

What OpenQuestion holds

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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.