ORBi: Majerus Steve - Attention Supports Verbal Short-Term Memory via Competition between Dorsal and Ventral Attention Networks.

Reference : Attention Supports Verbal Short-Term Memory via Competition between Dorsal and Ventral A...


	Document type :	Scientific journals : Article
	Discipline(s) :	Social & behavioral sciences, psychology : Neurosciences & behavior Social & behavioral sciences, psychology : Theoretical & cognitive psychology Human health sciences : Neurology
	To cite this reference:	http://hdl.handle.net/2268/97320

Title :	Attention Supports Verbal Short-Term Memory via Competition between Dorsal and Ventral Attention Networks.
Language :	English
Author, co-author :	Majerus, Steve [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Psychopathologie cognitive]
	Attout, Lucie [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Psychopathologie cognitive]
	D'Argembeau, Arnaud [Université de Liège - ULg > > Centre de recherches du cyclotron]
	Degueldre, Christian [> > > >]
	Fias, W. [Universiteit Gent - Ugent > > > >]
	Maquet, Pierre [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Psychopathologie cognitive]
	Martinez Perez, Trecy [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Psychopathologie cognitive]
	Stawarczyk, David [Université de Liège - ULg > Département des sciences cliniques > Neuroimagerie des troubles de la mémoire et révalid. cogn.]
	Salmon, Eric [Université de Liège - ULg > Département de Psychologie : cognition et comportement > Psychopathologie cognitive]
	Van der Linden, Martial [Université de Liège - ULg > > Centre de recherches du cyclotron]
	Phillips, Christophe [Université de Liège - ULg > > Centre de recherches du cyclotron]
	Balteau, Evelyne [> >]
Publication date :	2012
Journal title :	Cerebral Cortex
Publisher :	Oxford University Press
Volume :	22
Pages :	1086-1097
Audience :	International
ISSN :	1047-3211
e-ISSN :	1460-2199
City :	Cary
Country :	NC
Abstract :	[en] Interactions between the neural correlates of short-term memory (STM) and attention have been actively studied in the visual STM domain but much less in the verbal STM domain. Here we show that the same attention mechanisms that have been shown to shape the neural networks of visual STM also shape those of verbal STM. Based on previous research in visual STM, we contrasted the involvement of a dorsal attention network centered on the intraparietal sulcus supporting task-related attention and a ventral attention network centered on the temporoparietal junction supporting stimulus-related attention. We observed that, with increasing STM load, the dorsal attention network was activated while the ventral attention network was deactivated, especially during early maintenance. Importantly, activation in the ventral attention network increased in response to task-irrelevant stimuli briefly presented during the maintenance phase of the STM trials but only during low-load STM conditions, which were associated with the lowest levels of activity in the dorsal attention network during encoding and early maintenance. By demonstrating a trade-off between task-related and stimulus-related attention networks during verbal STM, this study highlights the dynamics of attentional processes involved in verbal STM.
Permalink :	http://hdl.handle.net/2268/97320
DOI :	10.1093/cercor/bhr174

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