...
首页> 外文期刊>Neuron >Formal learning theory dissociates brain regions with different temporal integration.
【24h】

Formal learning theory dissociates brain regions with different temporal integration.

机译:形式学习理论使大脑区域具有不同的时间整合。

获取原文
获取原文并翻译 | 示例
           

摘要

Learning can be characterized as the extraction of reliable predictions about stimulus occurrences from past experience. In two experiments, we investigated the interval of temporal integration of previous learning trials in different brain regions using implicit and explicit Pavlovian fear conditioning with a dynamically changing reinforcement regime in an experimental setting. With formal learning theory (the Rescorla-Wagner model), temporal integration is characterized by the learning rate. Using fMRI and this theoretical framework, we are able to distinguish between learning-related brain regions that show long temporal integration (e.g., amygdala) and higher perceptual regions that integrate only over a short period of time (e.g., fusiform face area, parahippocampal place area). This approach allows for the investigation of learning-related changes in brain activation, as it can dissociate brain areas that differ with respect to their integration of past learning experiences by either computing long-term outcome predictions or instantaneous reinforcement expectancies.
机译:学习的特征可以是从过去的经验中得出有关刺激发生的可靠预测。在两个实验中,我们在实验环境中使用动态变化的强化机制使用隐式和显式的Pavlovian恐惧条件,研究了在不同大脑区域中先前学习试验的时间整合间隔。利用形式学习理论(Rescorla-Wagner模型),时间整合的特征在于学习率。使用功能磁共振成像和这种理论框架,我们能够区分学习相关的大脑区域,这些区域表现出长时间的整合(例如杏仁核)和较高的知觉区域,这些感知区域仅在短时间内整合(例如梭形面部区域,海马旁位置)区)。这种方法可以研究与大脑激活有关的与学习有关的变化,因为它可以通过计算长期结果预测或瞬时强化预期,使过去学习经验整合方面不同的大脑区域分离。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号