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Gepubliceerd in: Neuropraxis 3/2008

01-06-2008 | Artikelen

Activiteit in het brein als men gevraagd wordt niets te doen

Het functionele basisnetwerk van de hersenen

Auteur: Koene van Dijk

Gepubliceerd in: Neuropraxis | Uitgave 3/2008

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Samenvatting

De ontwikkeling van beeldvormende technieken zoals positron emission tomography (pet) en magnetic resonance imaging (mri) heeft in de afgelopen decennia een grote impuls gegeven aan de vermeerdering van kennis over het functioneren van het brein. Talloze hersenfuncties zijn inmiddels onderzocht. In experimenten wordt vaak activiteit in het brein tijdens het uitvoeren van een bepaalde taak vergeleken met activiteit tijdens rust. De laatste jaren is er echter een groeiende belangstelling voor een netwerk van hersengebieden dat juist actief blijkt tijdens rust. Als een proefpersoon de opdracht krijgt om in de scanner te liggen en niets te doen, is een netwerk van gebieden actief dat default mode network of brain function wordt genoemd, het functionele basisnetwerk van de hersenen. Dit netwerk blijkt onder andere een rol te spelen bij het denken aan gebeurtenissen in het verleden, het zich voorstellen van de mentale staat van anderen en het zich inbeelden van toekomstige handelingen.
Voetnoten
1
BA = Brodman area (zie o.a.: H.C. Elliott (1963) Textbook of Neuroanatomy, Philadelphia: Lippincott)
 
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Metagegevens
Titel
Activiteit in het brein als men gevraagd wordt niets te doen
Het functionele basisnetwerk van de hersenen
Auteur
Koene van Dijk
Publicatiedatum
01-06-2008
Uitgeverij
Bohn Stafleu van Loghum
Gepubliceerd in
Neuropraxis / Uitgave 3/2008
Print ISSN: 1387-5817
Elektronisch ISSN: 1876-5785
DOI
https://doi.org/10.1007/BF03077125

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