Article (Scientific journals)
The neural correlates of implicit and explicit sequence learning : Interacting networks revealed by the process dissociation procedure
Destrebecqz, Arnaud; Peigneux, Philippe; Laureys, Steven et al.
2005In Learning and Memory, 12 (5), p. 480-490
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Abstract :
[en] In two (H15O)-O-2 PET scan experiments, we investigated the cerebral correlates of explicit and implicit knowledge in a serial reaction time (SRT) task. To do so, we used a novel application of the Process Dissociation Procedure, a behavioral paradigm that makes it possible to separately assess conscious and unconscious contributions to performance during a subsequent sequence generation task. To manipulate the extent to which the repeating sequential pattern was learned explicitly, we varied the pace of the choice reaction time task-a variable that is known to have differential effects on the extent to which sensitivity to sequence structure involves implicit or explicit knowledge. Results showed that activity in the striatum subtends the implicit component of performance during recollection of a learned sequence, whereas the anterior cingulate/mesial prefrontal cortex (ACC/MPFC) supports the explicit component. Most importantly, we found that the ACC/MPFC exerts control on the activity of the striatum during retrieval of the sequence after explicit learning, whereas the activity of these regions is uncoupled when learning had been essentially implicit. These data suggest that implicit learning processes can be successfully controlled by conscious knowledge when learning is essentially explicit. They also supply further evidence for a partial dissociation between the neural substrates supporting conscious and nonconscious components of performance during recollection of a learned sequence.
Disciplines :
Theoretical & cognitive psychology
Neurosciences & behavior
Author, co-author :
Destrebecqz, Arnaud
Peigneux, Philippe ;  Université de Liège > Centre de recherches du cyclotron
Laureys, Steven  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Degueldre, Christian ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Del Fiore, G.
Aerts, Joël ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Luxen, André ;  Université de Liège - ULiège > Département de chimie (sciences) > Chimie organique de synthèse - Centre de recherches du cyclotron
Van der Linden, Martial ;  Université de Liège - ULiège > Département des sciences cognitives > Psychopathologie cognitive
Cleeremans, Axel
Maquet, Pierre  ;  Université de Liège - ULiège > Centre de recherches du cyclotron
Language :
English
Title :
The neural correlates of implicit and explicit sequence learning : Interacting networks revealed by the process dissociation procedure
Publication date :
2005
Journal title :
Learning and Memory
ISSN :
1072-0502
eISSN :
1549-5485
Publisher :
Cold Spring Harbor Laboratory Press, Cold Spring Harbor, United States - New York
Volume :
12
Issue :
5
Pages :
480-490
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 February 2016

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