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s00221-017-5083-4.pdf | 1.99 MB | Adobe PDF | 見る/開く |
タイトル: | Neural correlates of implicit knowledge about statistical regularities |
著者: | Otsuka, Sachio Saiki, Jun https://orcid.org/0000-0002-3480-4336 (unconfirmed) |
著者名の別形: | 大塚, 幸生 齋木, 潤 |
キーワード: | Statistical learning Implicit knowledge Posterior cingulate cortex Parietal lobe Precuneus |
発行日: | Dec-2017 |
出版者: | Springer Science and Business Media LLC |
誌名: | Experimental Brain Research |
巻: | 235 |
号: | 12 |
開始ページ: | 3573 |
終了ページ: | 3583 |
抄録: | In this study, we examined the neural correlates of implicit knowledge about statistical regularities of temporal order and item chunks using functional magnetic resonance imaging (fMRI). In a familiarization scan, participants viewed a stream of scenes consisting of structured (i.e., three scenes were always presented in the same order) and random triplets. In the subsequent test scan, participants were required to detect a target scene. Test sequences included both forward order of scenes presented during the familiarization scan and backward order of scenes (i.e., reverse order of forward scenes). Behavioral results showed a learning effect of temporal order in the forward condition and scene chunks in the backward condition. fMRI data from the familiarization scan showed the difference of activations between the structured and random blocks in the left posterior cingulate cortex including the retrosplenial cortex. More important, in the test scan, we observed brain activities in the left parietal lobe when participants detected target scenes on temporal order information. In contrast, the left precuneus activated when participants detected target scenes based on scene chunks. Our findings help clarify the brain mechanisms of implicit knowledge about acquired regularities. |
著作権等: | This is a post-peer-review, pre-copyedit version of an article published in Experimental Brain Research. The final authenticated version is available online at: http://dx.doi.org/10.1007/s00221-017-5083-4. This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/250170 |
DOI(出版社版): | 10.1007/s00221-017-5083-4 |
PubMed ID: | 28884209 |
出現コレクション: | 学術雑誌掲載論文等 |
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