The neural substrate of prior information in perceptual decision making: a model-based analysis.
The neural substrate of prior information in perceptual decision making: a model-based analysis.
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DOI：
10.3389/fnhum.2010.00040
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发表时间：
2010
影响因子：
2.9
通讯作者：
Wagenmakers EJ
中科院分区：
文献类型：
--
作者：
Forstmann BU;Brown S;Dutilh G;Neumann J;Wagenmakers EJ
先验信息使决策过程产生偏差：与先验信息一致的行动执行得很快，而与先验信息不一致的行动执行得很慢。这种偏见是如何在大脑中实现的？为了解决这个问题，我们进行了一项实验，在实验中，人们必须迅速判断一团点是一致地向左移动还是向右移动。线索提供了关于即将到来的刺激计划的概率信息。用线性弹道累加器(LBA)模型分析了行为数据，证实了人们利用线索来偏向他们的决定。功能磁共振成像(FMRI)数据显示，该线索的呈现不同地激活了眼眶额叶皮质、海马体和壳核。定向提示选择性地激活对侧的壳核。只有当LBA偏差参数作为协变量被包括在内时，fMRI分析才会产生结果，这突出了正式建模的实际好处。我们的结果表明，人脑利用先前的信息，通过增加皮质-纹状体的激活来选择性地抑制首选反应。
Prior information biases the decision process: actions consistent with prior information are executed swiftly, whereas actions inconsistent with prior information are executed slowly. How is this bias implemented in the brain? To address this question we conducted an experiment in which people had to decide quickly whether a cloud of dots moved coherently to the left or to the right. Cues provided probabilistic information about the upcoming stimulus. Behavioral data were analyzed with the linear ballistic accumulator (LBA) model, confirming that people used the cue to bias their decisions. The functional magnetic resonance imaging (fMRI) data showed that presentation of the cue differentially activated orbitofrontal cortex, hippocampus, and the putamen. Directional cues selectively activated the contralateral putamen. The fMRI analysis yielded results only when the LBA bias parameter was included as a covariate, highlighting the practical benefits of formal modeling. Our results suggest that the human brain uses prior information by increasing cortico-striatal activation to selectively disinhibit preferred responses.
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影响因子：
64.8
作者：
Daw, Nathaniel D.;O'Doherty, John P.;Dayan, Peter;Seymour, Ben;Dolan, Raymond J.
通讯作者：
Dolan, Raymond J.
影响因子：
5.7
作者：
FRISTON, KJ;HOLMES, AP;TURNER, R
通讯作者：
TURNER, R
DOI：
10.1073/pnas.0805903105
发表时间：
2008-11-11
影响因子：
11.1
作者：
Forstmann, Birte U.;Dutilh, Gilles;Wagenmaker, Eric-Jan
通讯作者：
Wagenmaker, Eric-Jan
影响因子：
5.3
作者：
Basso, MA;Wurtz, RH
通讯作者：
Wurtz, RH
影响因子：
9.2
作者：
Bestmann, Sven;Harrison, Lee M.;Rothwell, John C.
通讯作者：
Rothwell, John C.