Griffiths, B., Mazaheri, A., Debener, S. and Hanslmayr, S. (2016) Brain oscillations track the formation of episodic memories in the real world. NeuroImage, 143, pp. 256-266. (doi: 10.1016/j.neuroimage.2016.09.021) (PMID:27622395)
|
Text
222721.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives. 775kB |
Abstract
Despite the well-known influence of environmental context on episodic memory, little has been done to increase contextual richness within the lab. This leaves a blind spot lingering over the neuronal correlates of episodic memory formation in day-to-day life. To address this, we presented participants with a series of words to memorise along a pre-designated route across campus while a mobile EEG system acquired ongoing neural activity. Replicating lab-based subsequent memory effects (SMEs), we identified significant low to mid frequency power decreases (<30 Hz), including beta power decreases over the left inferior frontal gyrus. When investigating the oscillatory correlates of temporal and spatial context binding, we found that items strongly bound to spatial context exhibited significantly greater theta power decreases than items strongly bound to temporal context. These findings expand upon lab-based studies by demonstrating the influence of real world contextual factors that underpin memory formation.
Item Type: | Articles |
---|---|
Additional Information: | This work was supported by grants awarded to S.H. by Deutsche Forschungsgemeinschaft [Emmy Noether Programme Grant HA 5622/1-1]; and the European Research Council [Consolidator Grant Agreement 647954]. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Hanslmayr, Professor Simon |
Authors: | Griffiths, B., Mazaheri, A., Debener, S., and Hanslmayr, S. |
College/School: | College of Medical Veterinary and Life Sciences > School of Psychology & Neuroscience |
Journal Name: | NeuroImage |
Publisher: | Elsevier |
ISSN: | 1053-8119 |
ISSN (Online): | 1095-9572 |
Published Online: | 10 September 2016 |
Copyright Holders: | Copyright © 2016 Elsevier Inc. |
First Published: | First published in NeuroImage 143: 256-266 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
University Staff: Request a correction | Enlighten Editors: Update this record