Organizing conceptual knowledge in humans with a gridlike code

It has been hypothesized that the brain organizes concepts into a mental map, allowing conceptual relationships to be navigated in a manner similar to that of space. Grid cells use a hexagonally symmetric code to organize spatial representations and are the likely source of a precise hexagonal symme...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Science (American Association for the Advancement of Science) Jg. 352; H. 6292; S. 1464 - 1468
Hauptverfasser: Constantinescu, Alexandra O, O'Reilly, Jill X, Behrens, Timothy E J
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States 17.06.2016
Schlagworte:
Adult
Brain - cytology
Brain - physiology
Female
Functional Neuroimaging
Habits
Humans
Knowledge
Magnetic Resonance Imaging
Male
Neurons - physiology
Spatial Navigation - physiology
Young Adult
ISSN:1095-9203
Online-Zugang:Weitere Angaben
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:It has been hypothesized that the brain organizes concepts into a mental map, allowing conceptual relationships to be navigated in a manner similar to that of space. Grid cells use a hexagonally symmetric code to organize spatial representations and are the likely source of a precise hexagonal symmetry in the functional magnetic resonance imaging signal. Humans navigating conceptual two-dimensional knowledge showed the same hexagonal signal in a set of brain regions markedly similar to those activated during spatial navigation. This gridlike signal is consistent across sessions acquired within an hour and more than a week apart. Our findings suggest that global relational codes may be used to organize nonspatial conceptual representations and that these codes may have a hexagonal gridlike pattern when conceptual knowledge is laid out in two continuous dimensions.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1095-9203
DOI:10.1126/science.aaf0941