Academic Journal

Expertise-related right frontal structural differences in older professional Go players: network and inter-hemispheric covariance analyses.

Λεπτομέρειες βιβλιογραφικής εγγραφής
Τίτλος: Expertise-related right frontal structural differences in older professional Go players: network and inter-hemispheric covariance analyses.
Συγγραφείς: Kang H; Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea., Kwon MJ; Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea., Jang K; Biomedical Research Institute, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea., Jo S; Biomedical Research Institute, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do, Republic of Korea; Department of Health Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea., Shin NY; Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea., Han JW; Department of Neuropsychiatry, Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea., Kim KW; Department of Brain and Cognitive Science, Seoul National University College of Natural Science, Seoul, Republic of Korea; Department of Health Science and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea; Department of Neuropsychiatry, Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea; Institute of Human Behavioral Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea. Electronic address: kwkimmd@snu.ac.kr.
Πηγή: NeuroImage [Neuroimage] 2026 Oct 01; Vol. 339, pp. 122190. Date of Electronic Publication: 2026 Aug 31.
Τύπος έκδοσης: Journal Article
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Academic Press Country of Publication: United States NLM ID: 9215515 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1095-9572 (Electronic) Linking ISSN: 10538119 NLM ISO Abbreviation: Neuroimage Subsets: MEDLINE
Imprint Name(s): Original Publication: Orlando, FL : Academic Press, c1992-
Ιατρικοί όροι (MeSH): Executive Function*/physiology , Frontal Lobe*/physiology , Frontal Lobe*/anatomy & histology , Memory, Short-Term*/physiology , Prefrontal Cortex*/physiology , Prefrontal Cortex*/anatomy & histology , Prefrontal Cortex*/diagnostic imaging , Nerve Net*/physiology , Nerve Net*/diagnostic imaging , Nerve Net*/anatomy & histology, Humans ; Male ; Magnetic Resonance Imaging ; Middle Aged ; Aged
Περίληψη: Professional Go (Baduk) is a rare model of lifelong cognitive expertise that taxes strategic planning and working memory. Prior Go studies examined younger or amateur players and isolated regions (Jung et al., 2013); whether professional practice leaves a network-level structural signature in older experts is unknown. To our knowledge, this is the first characterization in an older professional cohort, extending beyond regional measures to network morphometry and inter-hemispheric covariance. We used T1-weighted structural MRI to compare 29 older male professional Go players (PGP; mean career 54.6 years; dan 5-9) with 50 male controls (CTRL) recruited at baseline of a Go-training trial (KCT0010704). Groups were comparable in age and vascular risk, although CTRL had more education (15.9 vs 12.4 years). Regional gray-matter volume, thickness, and texture were aggregated into six Yeo functional-network regions, and inter-hemispheric structural covariance was computed. PGP showed larger executive control network (ECN) volume (η²p = 0.153; PFDR = 0.006), driven by the right middle frontal gyrus (MFG; η²p = 0.392; PFDR < 0.001). The right MFG effect held across education-adjusted ANCOVA, propensity-score matching, and a cognitively-normal subgroup (n = 62); ECN persisted in the subgroup but did not survive strict matching in the full sample. Covariate-adjusted inter-hemispheric covariance was higher in PGP in five of six networks (all PFDR < 0.05). Cognition was domain-specific rather than globally superior: PGP excelled at working memory (+0.71 SD) but underperformed at naming (-0.82 SD; Group × Domain P < 0.001). The enlarged right MFG, robust to education adjustment, is the principal, association-level finding, motivating longitudinal follow-up.
(Copyright © 2026 The Authors. Published by Elsevier Inc. All rights reserved.)
Competing Interests: Declaration of competing interest All authors declare no financial or non-financial competing interests.
Contributed Indexing: Keywords: Baduk (Go); Cognitive expertise; Executive control network; Middle frontal gyrus; Structural covariance; Working memory
Entry Date(s): Date Created: 20260831 Date Completed: 20260911 Latest Revision: 20260911
Update Code: 20260912
DOI: 10.1016/j.neuroimage.2026.122190
PMID: 42674121
Βάση Δεδομένων: MEDLINE
Περιγραφή
ISSN:1095-9572
DOI:10.1016/j.neuroimage.2026.122190