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首页> 外文期刊>The European Journal of Neuroscience >Surprise! Neural correlates of Pearce-Hall and Rescorla-Wagner coexist within the brain
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Surprise! Neural correlates of Pearce-Hall and Rescorla-Wagner coexist within the brain

机译：惊喜！大脑中Pearce-Hall和Rescorla-Wagner的神经相关性共存

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Learning theory and computational accounts suggest that learning depends on errors in outcome prediction as well as changes in processing of or attention to events. These divergent ideas are captured by models, such as Rescorla-Wagner (RW) and temporal difference (TD) learning on the one hand, which emphasize errors as directly driving changes in associative strength, vs. models such as Pearce-Hall (PH) and more recent variants on the other hand, which propose that errors promote changes in associative strength by modulating attention and processing of events. Numerous studies have shown that phasic firing of midbrain dopamine (DA) neurons carries a signed error signal consistent with RW or TD learning theories, and recently we have shown that this signal can be dissociated from attentional correlates in the basolateral amygdala and anterior cingulate. Here we will review these data along with new evidence: (i) implicating habenula and striatal regions in supporting error signaling in midbrain DA neurons; and (ii) suggesting that the central nucleus of the amygdala and prefrontal regions process the amygdalar attentional signal. However, while the neural instantiations of the RW and PH signals are dissociable and complementary, they may be linked. Any linkage would have implications for understanding why one signal dominates learning in some situations and not others, and also for appreciating the potential impact on learning of neuropathological conditions involving altered DA or amygdalar function, such as schizophrenia, addiction or anxiety disorders. Published 2012. This article is a U.S. Government work and is in the public domain in the USA.
机译：学习理论和计算说明表明，学习取决于结果预测中的错误以及事件处理或关注事件的变化。一方面，诸如Rescorla-Wagner（RW）和时差（TD）学习之类的模型抓住了这些分歧的思想，而Pearce-Hall（PH）等模型则强调了直接驱​​动关联强度变化的错误。另一方面，还有最近出现的变体，它们提出错误可以通过调节事件的注意力和处理方式来促进联想强度的变化。大量研究表明，中脑多巴胺（DA）神经元的相位激发带有与RW或TD学习理论一致的有符号错误信号，最近，我们表明该信号可以与基底外侧杏仁核和前扣带的注意力相关性分离。在这里，我们将回顾这些数据以及新的证据：（i）牵连哈贝拉和纹状体区域支持中脑DA神经元的错误信号传递; （ii）提示杏仁核的中央核和前额叶区域处理了杏仁核的注意信号。但是，尽管RW和PH信号的神经实例是可分解的和互补的，但它们可能是关联的。任何联系都将意味着理解为什么一个信号在某些情况下而不是其他情况下占主导地位，并且对于了解与精神分裂症，成瘾或焦虑症等DA或杏仁体功能改变有关的神经病理学状况对学习的潜在影响也具有意义。 2012年发布。本文是美国政府的工作，在美国属于公共领域。

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