Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/25291
Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Behavioral correlates of changes in hippocampal gray matter structure during acquisition of foreign vocabulary
Authors: Bellander, Martin
Berggren, Rasmus
Martensson, Johan
Brehmer, Yvonne
Wenger, Elisabeth
Li, Tie-Qiang
Bodammer, Nils
Shing, Yee Lee
Werkle-Bergner, Markus
Lovden, Martin
Contact Email: yee.shing@stir.ac.uk
Keywords: Experience-dependent plasticity
Gray matter
Foreign language learning
Associative memory
Hippocampus
Issue Date: 1-May-2016
Citation: Bellander M, Berggren R, Martensson J, Brehmer Y, Wenger E, Li T, Bodammer N, Shing YL, Werkle-Bergner M & Lovden M (2016) Behavioral correlates of changes in hippocampal gray matter structure during acquisition of foreign vocabulary, NeuroImage, 131, pp. 205-213.
Abstract: Experience can affect human gray matter volume. The behavioral correlates of individual differences in such brain changes are not well understood. In a group of Swedish individuals studying Italian as a foreign language, we investigated associations among time spent studying, acquired vocabulary, baseline performance on memory tasks, and gray matter changes. As a way of studying episodic memory training, the language learning focused on acquiring foreign vocabulary and lasted for 10 weeks. T1-weighted structural magnetic resonance imaging and cognitive testing were performed before and after the studies. Learning behavior was monitored via participants' use of a smartphone application dedicated to the study of vocabulary. A whole-brain analysis showed larger changes in gray matter structure of the right hippocampus in the experimental group (N = 33) compared to an active control group (N = 23). A first path analyses revealed that time spent studying rather than acquired knowledge significantly predicted change in gray matter structure. However, this association was not significant when adding performance on baseline memory measures into the model, instead only the participants' performance on a short-term memory task with highly similar distractors predicted the change. This measure may tap similar individual difference factors as those involved in gray matter plasticity of the hippocampus. © 2015 Elsevier Inc.
DOI Link: http://dx.doi.org/10.1016/j.neuroimage.2015.10.020
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