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Brain network connectivity–behavioral relationships exhibit trait‐like properties: Evidence from hippocampal connectivity and memory
Author(s) -
Touroutoglou Alexandra,
Andreano Joseph M.,
Barrett Lisa Feldman,
Dickerson Bradford C.
Publication year - 2015
Publication title -
hippocampus
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.767
H-Index - 155
eISSN - 1098-1063
pISSN - 1050-9631
DOI - 10.1002/hipo.22480
Subject(s) - psychology , functional connectivity , neuroscience , hippocampal formation , posterior cingulate , episodic memory , resting state fmri , cognitive psychology , functional magnetic resonance imaging , cognition
Despite a growing number of studies showing relationships between behavior and resting‐state functional MRI measures of large‐scale brain network connectivity, no study to our knowledge has sought to investigate whether intrinsic connectivity–behavioral relationships are stable over time. In this study, we investigated the stability of such brain–behavior relationships at two timepoints, approximately 1 week apart. We focused on the relationship between the strength of hippocampal connectivity to posterior cingulate cortex and episodic memory performance. Our results showed that this relationship is stable across samples of a different age and reliable over two points in time. These findings provide the first evidence that the relationship between large‐scale intrinsic network connectivity and episodic memory performance is a stable characteristic that varies between individuals. © 2015 Wiley Periodicals, Inc.