Retroactive interference from a declarative memory can prevent the consolidation of motor skill memories over wakefulness, but not over a night of sleep. Recently, motor imagery (MI) learning has been showed to allow for a stronger resistance against procedural interference rather than physical practice, but whether declarative interference might impact sleep-dependent consolidation process of an explicit ﬁnger tapping task learned with MI remains unknown. To address this issue, 57 subjects mentally rehearsed an explicit ﬁnger tapping sequence, and half of them were then requested to practice an inter-ferential declarative task. All participants were re-tested on the initial procedural task either after a night of sleep or a similar daytime interval. The main ﬁndings provided evidence that declarative interference affect MI consolidation both over the night and wakefulness intervals. These results extend our previous ﬁndings by underlying that declarative interference might impact more strongly explicit MI practice than physical practice, hence suggesting that MI might rely on declarative memory rather than exclusively on procedural memory system. The relationship between declarative and procedural memories during MI practice, as well as during off-line consolidation, is discussed.
|Autori:||Debarnot U.;Castellani E.; Guillot A.; Giannotti V.; Dimarco M.; Sebastiani L.|
|Titolo:||Declarative interference affects off-line processing of motor imagery learning during both sleep and wakefulness|
|Anno del prodotto:||2012|
|Digital Object Identifier (DOI):||10.1016/j.nlm.2012.10.009|
|Appare nelle tipologie:||1.1 Articolo in rivista|