TY - JOUR
T1 - Neural bases of goal-directed implicit learning
AU - Rostami, Maryam
AU - Hosseini, S. M.Hadi
AU - Takahashi, Makoto
AU - Sugiura, Motoaki
AU - Kawashima, Ryuta
N1 - Funding Information:
This research was supported in part by the Ministry of Education, Culture, Sports, Science and Technology Grant-in-Aid for Scientific Research (B) (18300039, 2007) and a Grant-in Aid for Young Scientists (A) (18680026,2007) (MEXT). I would also like to thank Dr. Hyeonjeong Jeong, Dr. Yuko Sassa, Mr. Hiroki Miyata, and Ms. Yuki Tobita for their assistance in the experiments.
PY - 2009/10/15
Y1 - 2009/10/15
N2 - Several neuropsychological and neuroimaging studies have been performed to clarify the neural bases of implicit learning, but the question of which brain regions are involved in different forms of implicit learning, including goal-directed learning and habit learning, has not yet been resolved. The present study sought to clarify the mechanisms of goal-directed implicit learning by examining the sugar production factory (SPF) task in conjunction with functional magnetic resonance imaging (fMRI). Several brain regions were identified that contribute to learning in the SPF task. Significant learning-related decreases in brain activity were found in the right inferior parietal lobule (IPL), left superior frontal gyrus, right medial frontal gyrus, cerebellar vermis, and left inferior frontal gyrus, while significant learning-related increases in activity were observed in the right inferior frontal gyrus, left precenteral gyrus and, left precuneus. Among these regions, we speculate that the IPL and medial frontal gyrus may specifically be involved in the early stage of goal-directed implicit learning. We also attempted to investigate the role of the striatum, which has a significant role in habit learning, during learning of the SPF task. The results of ROI analysis showed no learning-related change in the activity of the striatum. Although some of the observed learning-related activations in this study have also been previously reported in neuroimaging studies of habit learning, the possibility that specific brain regions involved in goal-direct implicit learning cannot be excluded.
AB - Several neuropsychological and neuroimaging studies have been performed to clarify the neural bases of implicit learning, but the question of which brain regions are involved in different forms of implicit learning, including goal-directed learning and habit learning, has not yet been resolved. The present study sought to clarify the mechanisms of goal-directed implicit learning by examining the sugar production factory (SPF) task in conjunction with functional magnetic resonance imaging (fMRI). Several brain regions were identified that contribute to learning in the SPF task. Significant learning-related decreases in brain activity were found in the right inferior parietal lobule (IPL), left superior frontal gyrus, right medial frontal gyrus, cerebellar vermis, and left inferior frontal gyrus, while significant learning-related increases in activity were observed in the right inferior frontal gyrus, left precenteral gyrus and, left precuneus. Among these regions, we speculate that the IPL and medial frontal gyrus may specifically be involved in the early stage of goal-directed implicit learning. We also attempted to investigate the role of the striatum, which has a significant role in habit learning, during learning of the SPF task. The results of ROI analysis showed no learning-related change in the activity of the striatum. Although some of the observed learning-related activations in this study have also been previously reported in neuroimaging studies of habit learning, the possibility that specific brain regions involved in goal-direct implicit learning cannot be excluded.
KW - Goal-directed learning
KW - Implicit learning
KW - Sugar production factory
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U2 - 10.1016/j.neuroimage.2009.06.007
DO - 10.1016/j.neuroimage.2009.06.007
M3 - Article
C2 - 19524051
AN - SCOPUS:67949103435
VL - 48
SP - 303
EP - 310
JO - NeuroImage
JF - NeuroImage
SN - 1053-8119
IS - 1
ER -