지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
We investigated the neural representation of reward probability recognition and its neural connectivity with other regions of the brain. Using functional magnetic resonance imaging (fMRI), we used a simple guessing task with different probabilities of obtaining rewards across trials to assay local and global regions processing reward probability. The results of whole brain analysis demonstrated that lateral prefrontal cortex, inferior parietal lobe, and postcentral gyrus were activated during probability-based decision making. Specifically, the higher the expected value was, the more these regions were activated. Fronto-parietal connectivity, comprising inferior parietal regions and right lateral prefrontal cortex, conjointly engaged during high reward probability recognition compared to low reward condition, regardless of whether the reward information was extrinsically presented. Finally, the result of a regression analysis identified that cortico-subcortical connectivity was strengthened during the high reward anticipation for the subjects with higher cognitive impulsivity. Our findings demonstrate that interregional functional involvement is involved in valuation based on reward probability and that personality trait such as cognitive impulsivity plays a role in modulating the connectivity among different brain regions.
목차
등록된 정보가 없습니다.
참고문헌 (35)
참고문헌 신청
Steven P. Reise / 2013 / The Barratt Impulsiveness Scale–11: Reassessment of its structure in a community sample. / Psychological Assessment 25(2):631~642
Scott D. Slotnick / 2003 / Distinct prefrontal cortex activity associated with item memory and source memory for visual shapes / Cognitive Brain Research 17(1):75~82
Matthew S. Stanford / 2009 / Fifty years of the Barratt Impulsiveness Scale: An update and review / Personality and Individual Differences 47(5):385~395
Philippe N. Tobler / 2007 / Reward Value Coding Distinct From Risk Attitude-Related Uncertainty Coding in Human Reward Systems / Journal of Neurophysiology 97(2):1621~1632
Tobler, P. N. / 2008 / Neuronal distortions of reward probability without choice / Journal of Neuroscience 28(45):11703~11711
Scott D. Slotnick / 2003 / Distinct prefrontal cortex activity associated with item memory and source memory for visual shapes / Cognitive Brain Research 17(1):75~82
Matthew S. Stanford / 2009 / Fifty years of the Barratt Impulsiveness Scale: An update and review / Personality and Individual Differences 47(5):385~395
Philippe N. Tobler / 2007 / Reward Value Coding Distinct From Risk Attitude-Related Uncertainty Coding in Human Reward Systems / Journal of Neurophysiology 97(2):1621~1632
Tobler, P. N. / 2008 / Neuronal distortions of reward probability without choice / Journal of Neuroscience 28(45):11703~11711
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