Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/25840
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Hippocampal maturity promotes memory distinctiveness in childhood and adolescence
Authors: Keresztes, Attila
Bender, Andrew
Bodammer, Nils
Lindenberger, Ulman
Shing, Yee Lee
Werkle-Bergner, Markus
Contact Email: yee.shing@stir.ac.uk
Keywords: hippocampal subfields
episodic memory
specificity
pattern separation
child development
Issue Date: 22-Aug-2017
Citation: Keresztes A, Bender A, Bodammer N, Lindenberger U, Shing YL & Werkle-Bergner M (2017) Hippocampal maturity promotes memory distinctiveness in childhood and adolescence, Proceedings of the National Academy of Sciences, 114 (34), pp. 9212-9217.
Abstract: Adaptive learning systems need to meet two complementary and partially conflicting goals: detecting regularities in the world versus remembering specific events. The hippocampus (HC) keeps a fine balance between computations that extract commonalities of incoming information (i.e., pattern completion) and computations that enable encoding of highly similar events into unique representations (i.e., pattern separation). Histological evidence from young rhesus monkeys suggests that HC development is characterized by the differential development of intrahippocampal subfields and associated networks. However, due to challenges in the in vivo investigation of such developmental organization, the ontogenetic timing of HC subfield maturation remains controversial. Delineating its course is important, as it directly influences the fine balance between pattern separation and pattern completion operations and, thus, developmental changes in learning and memory. Here, we relate in vivo, high-resolution structural magnetic resonance imaging data of HC subfields to behavioral memory performance in children aged 6–14 y and in young adults. We identify a multivariate profile of age-related differences in intrahippocampal structures and show that HC maturity as captured by this pattern is associated with age differences in the differential encoding of unique memory representations.
DOI Link: http://dx.doi.org/10.1073/pnas.1710654114
Rights: This item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Publisher policy allows this work to be made available in this repository. Published in PNAS by National Academy of Sciences of the United States of America. The original publication is available at: https://doi.org/10.1073/pnas.1710654114

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