Titre du document / Document title

Neural substrates in judgment process while playing go : a comparison of amateurs with professionals

Auteur(s) / Author(s)

OUCHI Yasuomi ⁽¹⁾ ; KANNO Toshihiko ⁽¹⁾ ; YOSHIKAWA Etsuji ⁽²⁾ ; FUTATSUBASHI Masami ⁽²⁾ ; OKADA Hiroyuki ⁽²⁾ ; TORIZUKA Tatsuo ⁽¹⁾ ; KANEKO Mitsuo ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ Positron Medical Center, Hamamatsu Medical Center, 5000 Hirakuchi, Hamakita, 434-0041, JAPON
⁽²⁾ Central Research Laboratory, Hamamatsu Photonics K.K, Hamakita, 434-8601, JAPON

Résumé / Abstract

A professional go player shows incomparable ability in judgment during go game. Positron emission tomography (PET) was used to investigate the neural substrates of professional go player's judgment process. Eight professional go players and six amateur players were instructed to think over silently in the opening-stage game (fuseki, territorial planning) problems and the life-or-death (tsume, checkmate judgment) problems presented on the monitor in front of them for 60 s of H¹⁵₂O PET scans and to state the answer afterwards. We found that in the territorial planning problems the parietal activation was equally observed in both groups with the additional prefrontal activation in the amateur group, and in the checkmate-decision problems the precuneus and cerebellum were activated in professionals while the premotor and parietooccipital cortices (visuospatial processing region) were extensively activated in amateurs. The comparison of the two groups showed stronger activations in the precuneus and cerebellum in the professionals in contrast to the premotor activation in amateurs during checkmate judgment. In addition, the cerebellum was remarkably activated in the higher ranking professional players. These findings suggested the cerebellum and precuneus play important roles in processing of accurate judgment by visual imagery and nonmotor learning memory processes in professional go players.

Revue / Journal Title

Cognitive brain research   ISSN 0926-6410 

Source / Source

2005, vol. 23, n^o2-3, pp. 164-170 [7 page(s) (article)] (30 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier Science, Amsterdam, PAYS-BAS  (1992-2005) (Revue)

Mots-clés anglais / English Keywords

Central nervous system ; Radionuclide study ; Human ; Cognition ; Encephalon ; Topography ; Play ; Expertise ; Emission tomography ; Judgment ; Comparative study ;

Mots-clés français / French Keywords

Système nerveux central ; Exploration radioisotopique ; Homme ; Cognition ; Encéphale ; Topographie ; Jeu ; Expertise ; Tomoscintigraphie ; Jugement ; Etude comparative ;

Mots-clés espagnols / Spanish Keywords

Sistema nervioso central ; Exploración radioisotópica ; Hombre ; Cognición ; Encéfalo ; Topografía ; Juego ; Peritaje ; Tomocentelleografía ; Juicio ; Estudio comparativo ;

Mots-clés d'auteur / Author Keywords

Go ; Professional ; Judgment ; Precuneus ; Cerebellum ; Positron emission tomography ;

Localisation / Location

INIST-CNRS, Cote INIST : 22645, 35400012554318.0020