Picture free recall performance linked to the brain's structural connectome.
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ABSTRACT: Introduction
Memory functions are highly variable between healthy humans. The neural correlates of this variability remain largely unknown.Methods
Here, we investigated how differences in free recall performance are associated with DTI-based properties of the brain's structural connectome and with grey matter volumes in 664 healthy young individuals tested in the same MR scanner.Results
Global structural connectivity, but not overall or regional grey matter volumes, positively correlated with recall performance. Moreover, a set of 22 inter-regional connections, including some with no previously reported relation to human memory, such as the connection between the temporal pole and the nucleus accumbens, explained 7.8% of phenotypic variance.Conclusions
In conclusion, this large-scale study indicates that individual memory performance is associated with the level of structural brain connectivity.
SUBMITTER: Coynel D
PROVIDER: S-EPMC5516597 | biostudies-literature | 2017 Jul
REPOSITORIES: biostudies-literature
Publications
Picture free recall performance linked to the brain's structural connectome.
Coynel David D Gschwind Leo L Fastenrath Matthias M Freytag Virginie V Milnik Annette A Spalek Klara K Papassotiropoulos Andreas A de Quervain Dominique J-F DJ
Brain and behavior 20170523 7
<h4>Introduction</h4>Memory functions are highly variable between healthy humans. The neural correlates of this variability remain largely unknown.<h4>Methods</h4>Here, we investigated how differences in free recall performance are associated with DTI-based properties of the brain's structural connectome and with grey matter volumes in 664 healthy young individuals tested in the same MR scanner.<h4>Results</h4>Global structural connectivity, but not overall or regional grey matter volumes, posit ...[more]
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