Article

A parietal-premotor network for movement intention and motor awareness

Centre de Neuroscience Cognitive, UMR 5229, CNRS, Bron, France.
Trends in Cognitive Sciences (Impact Factor: 21.15). 10/2009; 13(10):411-9. DOI: 10.1016/j.tics.2009.08.001
Source: PubMed

ABSTRACT It is commonly assumed that we are conscious of our movements mainly because we can sense ourselves moving as ongoing peripheral information coming from our muscles and retina reaches the brain. Recent evidence, however, suggests that, contrary to common beliefs, conscious intention to move is independent of movement execution per se. We propose that during movement execution it is our initial intentions that we are mainly aware of. Furthermore, the experience of moving as a conscious act is associated with increased activity in a specific brain region: the posterior parietal cortex. We speculate that movement intention and awareness are generated and monitored in this region. We put forward a general framework of the cognitive and neural processes involved in movement intention and motor awareness.

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Available from: Angela Sirigu, Oct 29, 2014
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    • ", 2010 ; Miele , Wager , Mitchell , & Metcalfe , 2011 ) , but also in other areas such as the anterior insula and parietal reach regions ( PRR ) , given previous accounts suggesting a key role of these areas in the sense of agency ( Farrer et al . , 2003 , 2004 ; Karnath & Baier , 2010a ; Karnath , Baier , & Nagele , 2005 ; Sperduti , Delaveau , Fossati , & Nadel , 2011 ) and motor awareness ( Assal , Schwartz , & Vuilleumier , 2007 ; Desmurget & Sirigu , 2009 ; Sirigu et al . , 2004 ) . "
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    • "How best to interpret the apparent buildup of neuronal activity preceding conscious decisions has been debated extensively (Gomes 1999). The general view is that the 'early-decision' account is not compatible with the idea of conscious intentions causing our actions, and many have taken this to be evidence that unconscious process causes both motor preparation and conscious intentions (Desmurget and Sirigu 2009; Haggard 2011; Wegner 2003). We suspect that this view remains tied to the traditional framework to the extent that it assumes a single moment or a single location within which the unconscious decision to act emerges (Dennett 2003). "
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