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Analysis of institutional authors

Mulet-Pons LAuthorSolé-Padullés CAuthorCabello-Toscano MAuthorAbellaneda-Pérez KAuthorPerellón-Alfonso RAuthorCattaneo GAuthorBargallo NAuthorBartres-Faz DCorresponding AuthorVaqué-Alcázar LAuthor

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Article

Brain connectivity correlates of cognitive dispersion in a healthy middle-aged population: influence of subjective cognitive complaints

Publicated to:Journals Of Gerontology Series B-Psychological Sciences And Social Sciences. 78 (11): 1860-1869 - 2023-11-14 78(11), DOI: 10.1093/geronb/gbad114

Authors: Mulet-Pons, Lidia; Sole-Padulles, Cristina; Cabello-Toscano, Maria; Abellaneda-Perez, Kilian; Perellon-Alfonso, Ruben; Cattaneo, Gabriele; Solana Sanchez, Javier; Alviarez-Schulze, Vanessa; Bargallo, Nuria; Tormos-Munoz, Josep M; Pascual-Leone, Alvaro; Bartres-Faz, David; Vaque-Alcazar, Lidia

Affiliations

August Pi i Sunyer Institute of Biomedical Research, (IDIBAPS), Barcelona, Spain. - Author
Centre for Biomedical Research on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain. - Author
Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, Valencia, Spain. - Author
Department of Medicine, Faculty of Medicine and Health Sciences and Institute of Neurosciences, University of Barcelona, Barcelona, Spain. - Author
Department of Neurology, Harvard Medical School, Boston, MA, USA. - Author
Fundacio Inst Invest Ciencies Salut Germans Trias, Badalona, Spain - Author
Fundació Institut d'Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain. - Author
Guttmann Institute, Institut Universitari de Neurorehabilitació adscrit a la Universitat Autónoma de Barcelona, Badalona, Spain. - Author
Harvard Med Sch, Deanna & Sidney Wolk Ctr Memory Hlth, Hebrew SeniorLife, Boston, MA USA - Author
Harvard Med Sch, Dept Neurol, Boston, MA USA - Author
Harvard Med Sch, Hinda & Arthur Marcus Inst Aging Res, Hebrew SeniorLife, Boston, MA USA - Author
Hinda and Arthur Marcus Institute for Aging Research and Deanna and Sidney Wolk Center for Memory Health, Hebrew SeniorLife, Harvard Medical School, Boston, MA, USA. - Author
Neuroradiology Section, Radiology Department, Diagnostic Image Center, Hospital Clinic of Barcelona, University of Barcelona, Barcelona, Spain. - Author
Sant Pau Memory Unit, Department of Neurology, Institut d'Investigacions Biomèdiques Sant Pau-Hospital de Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain. - Author
Univ Autonoma Barcelona, Guttmann Inst, Inst Univ Neurorehabil Adscrit, Badalona, Spain - Author
Univ Autonoma Barcelona, Hosp St Pau, Inst Invest Biomed St Pau, Dept Neurol,St Pau Memory Unit, Barcelona, Spain - Author
Univ Barcelona, Hosp Clin Barcelona, Diagnost Image Ctr, Radiol Dept,Neuroradiol Sect, Barcelona, Spain - Author
Univ Barcelona, Inst Neurosci, Inst Invest Biomed August Pi i Sunyer IDIBAPS, Fac Med & Hlth Sci,Dept Med, Barcelona, Spain - Author
Univ Catolica Valencia San Vicente Martir, Ctr Invest Traslac San Alberto Magno, Valencia, Spain - Author
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Abstract

Cognitive dispersion, representing intraindividual fluctuations in cognitive performance, is associated with cognitive decline in advanced age. We sought to elucidate sociodemographic, neuropsychological, and brain connectivity correlates of cognitive dispersion in middle age, and further consider potential influences of the severity of subjective cognitive complaints (SCC).Five hundred and twenty healthy volunteers from the Barcelona Brain Health Initiative (BBHI) (aged 40-66 years; 49.6% females, 453 with magnetic resonance imaging acquisitions), were included and stratified into high and low SCC groups. Two analyses steps were undertaken, (i) for the whole sample and (ii) by groups. Generalized linear models and analysis of covariance were implemented to study associations between cognitive dispersion and performance (episodic memory, speed of processing, and executive function), white matter integrity, and resting-state functional connectivity (rs-FC) of the default mode network (DMN) and dorsal attentional networks (DAN).Across-domain dispersion was negatively related to cognitive performance, rs-FC within the DMN, and between the DMN and the DAN, but not to white matter integrity. The rs-FC values were not explained by cognitive performance. When considering groups, the above findings were significant only for those with high SCC.In healthy middle-aged individuals, high cognitive dispersion was related to poorer cognition and DMN dysregulation, being these associations stronger amongst subjects with high SCC. Present results reinforce the interest in considering dispersion measures within neuropsychological evaluations, as they may be more sensitive to incipient age-related cognitive and functional brain changes than traditional measures of performance.© The Author(s) 2023. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

Keywords

BrainBrain mappingCognicióCognitionCognitive dysfunctionDiagnostic imagingDiagnòstic per la imatgeFemaleHumansImatges per ressonància magnèticaMagnetic resonance imagingMaleMiddle agedNeuroimagingNeuropsicologíaNeuropsychological testsNeuropsychologyTests neuropsicològics

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journals Of Gerontology Series B-Psychological Sciences And Social Sciences due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2023, it was in position 3/47, thus managing to position itself as a Q1 (Primer Cuartil), in the category Gerontology. Notably, the journal is positioned above the 90th percentile.

From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 3.18, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Jun 2025)

Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-06-21, the following number of citations:

  • WoS: 3
  • Scopus: 3
  • Europe PMC: 1
  • OpenCitations: 2

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-21:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 12.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 12 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

  • The Total Score from Altmetric: 7.25.
  • The number of mentions on the social network X (formerly Twitter): 9 (Altmetric).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: United States of America.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Mulet Pons, Lídia) and Last Author (Vaqué Alcázar, Lídia).

the author responsible for correspondence tasks has been Bartrés Faz, David.