Deutsch
 
Hilfe Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT
  Effective learning is accompanied by high-dimensional and efficient representations of neural activity

Tang, E., Mattar, M. G., Giusti, C., Lydon-Staley, D. M., Thompson-Schill, S. L., & Bassett, D. S. (2019). Effective learning is accompanied by high-dimensional and efficient representations of neural activity. Nature Neuroscience, 22(6), 1000-1009. doi:10.1038/s41593-019-0400-9.

Item is

Basisdaten

einblenden: ausblenden:
Genre: Zeitschriftenartikel

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Tang, Evelyn1, Autor           
Mattar, M. G., Autor
Giusti, C., Autor
Lydon-Staley, D. M., Autor
Thompson-Schill, S. L., Autor
Bassett, D. S., Autor
Affiliations:
1Department of Living Matter Physics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2570692              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: A fundamental cognitive process is to map value and identity onto the objects we learn about. However, what space best embeds this mapping is not completely understood. Here we develop tools to quantify the space and organization of such a mapping in neural responses as reflected in functional MRI, to show that quick learners have a higher dimensional representation than slow learners, and hence more easily distinguishable whole-brain responses to objects of different value. Furthermore, we find that quick learners display more compact embedding of their neural responses, and hence have higher ratios of their stimuli dimension to their embedding dimension, which is consistent with greater efficiency of cognitive coding. Lastly, we investigate the neurophysiological drivers at smaller scales and study the complementary distinguishability of whole-brain responses. Our results demonstrate a spatial organization of neural responses characteristic of learning and offer geometric measures applicable to identifying efficient coding in higher-order cognitive processes.

Details

einblenden:
ausblenden:
Sprache(n): eng - English
 Datum: 2019-05-202019-06
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: DOI: 10.1038/s41593-019-0400-9
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Nature Neuroscience
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 22 (6) Artikelnummer: - Start- / Endseite: 1000 - 1009 Identifikator: -