Prediction error associated with the perceptual segmentation of naturalistic events.

Prediction error associated with the perceptual segmentation of naturalistic events.
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DOI:
10.1162/jocn_a_00078
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发表时间:
2011-12
影响因子:
3.2
通讯作者:
Haroutunian N
Haroutunian N
中科院分区:
医学3区
文献类型:
--
作者:
Zacks JM;Kurby CA;Eisenberg ML;Haroutunian N

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预测不久的将来对生存很重要,在感知、语言处理和学习理论中起着核心作用。预测失败对于启动感知和记忆系统的更新尤其重要,因此对于事件的主观体验也尤为重要。在这里,我们要求观察者预测5秒后的日常活动电影中会发生什么。那些更难预测的点与经验流中的主观界限相对应。在不可预测的情况下,与神经递质多巴胺的阶段性释放相关的中脑和纹状体区域的活动会短暂增加。这种活动可以提供一个全球性的更新信号,提示其他大脑系统一个重要的新事件已经开始。
Predicting the near future is important for survival and plays a central role in theories of perception, language processing and learning. Prediction failures may be particularly important for initiating the updating of perceptual and memory systems, and thus for the subjective experience of events. Here, we asked observers to make predictions about what would happen 5 s later in a movie of an everyday activity. Those points where prediction was more difficult corresponded with subjective boundaries in the stream of experience. At points of unpredictability, midbrain and striatal regions associated with the phasic release of the neurotransmitter dopamine transiently increased in activity. This activity could provide a global updating signal, cuing other brain systems that a significant new event has begun.
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对事件层次结构的感知存在年龄差异。
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发表时间: 2011-01
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