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Spatiotemporal and spectral dynamics of multi‐item working memory as revealed by the n ‐back task using MEG by Lars Costers; Jeroen Van Schependom; Jorne Laton; Johan Baijot; Martin Sjøgård; Vincent Wens; Xavier De Tiège; Serge Goldman; Miguel D'Haeseleer; Marie Beatrice D'hooghe; Mark Woolrich; Guy Nagels is a Neuroscience article available to read on EtoBox.

What is Spatiotemporal and spectral dynamics of multi‐item working memory as revealed by the n ‐back task using MEG about?

## Abstract Multi‐item working memory (WM) is a complex cognitive function thought to arise from specific frequency band oscillations and their interactions. While some theories and consistent findings have been established, there is still a lot of unclarity about the sources, temporal dynamics, and roles of event‐related fields (ERFs) and theta, alpha, and beta oscillations during WM activity. In this study, we performed an extensive whole‐brain ERF and time‐frequency analysis on __n__‐back magnetoencephalography data from 38 healthy controls. We identified the previously unknown sources of the __n__‐back M300, the right inferior temporal and parahippocampal gyrus and left inferior temporal gyrus, and frontal theta power increase, the orbitofrontal cortex. We shed new light on the role of the precuneus during __n__‐back activity, based on an early ERF and theta power increase, and suggest it to be a crucial link between lower‐level and higher‐level information processing. In addition, we provide strong evidence for the central role of the hippocampus in multi‐item WM behavior through the dynamics of theta and alpha oscillatory changes. Almost simultaneous alpha power decreases obs

Who reads Spatiotemporal and spectral dynamics of multi‐item working memory as revealed by the n ‐back task using MEG?

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Author
Lars Costers; Jeroen Van Schependom; Jorne Laton; Johan Baijot; Martin Sjøgård; Vincent Wens; Xavier De Tiège; Serge Goldman; Miguel D'Haeseleer; Marie Beatrice D'hooghe; Mark Woolrich; Guy Nagels
Publisher
Wiley
Published
2020
Language
EN
Field
Neuroscience (Life Sciences)

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