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Neuroimaging studies of priming.
Progress in Neurobiology ( IF 6.7 ) Pub Date : 2003-08-21 , DOI: 10.1016/s0301-0082(03)00086-8
R N A Henson 1
Affiliation  

This article reviews functional neuroimaging studies of priming, a behavioural change associated with the repeated processing of a stimulus. Using the haemodynamic techniques of functional magnetic resonance imaging (fMRI) and positron emission tomography (PET), priming-related effects have been observed in numerous regions of the human brain, with the specific regions depending on the type of stimulus and the manner in which it is processed. The most common finding is a decreased haemodynamic response for primed versus unprimed stimuli, though priming-related response increases have been observed. Attempts have been made to relate these effects to a form of implicit or "unconscious" memory. The priming-related decrease has also been used as a tool to map the brain regions associated with different stages of stimulus-processing, a method claimed to offer superior spatial resolution. This decrease has a potential analogue in the stimulus repetition effects measured with single-cell recording in the non-human primate. The paradigms reviewed include word-stem completion, masked priming, repetition priming of visual objects and semantic priming. An attempt is made to relate the findings within a "component process" framework, and the relationship between behavioural, haemodynamic and neurophysiological data is discussed. Interpretation of the findings is not always clear-cut, however, given potential confounding factors such as explicit memory, and several recommendations are made for future neuroimaging studies of priming.

中文翻译:

引发的神经影像学研究。

本文回顾了关于引发的功能性神经影像学研究,即与重复处理刺激有关的行为改变。使用功能磁共振成像(fMRI)和正电子发射断层扫描(PET)的血液动力学技术,已在人脑的许多区域观察到了与启动有关的效应,具体区域取决于刺激的类型和方式。它被处理了。最常见的发现是引发的与未引发的刺激相比,血流动力学反应降低,尽管已经观察到引发相关的反应增加。已经尝试将这些影响与隐式或“无意识”记忆的形式联系起来。与启动有关的下降也已被用作绘制与刺激处理的不同阶段相关的大脑区域的工具,一种声称可提供出色空间分辨率的方法。这种减少在非人类灵长类动物的单细胞记录中所测得的刺激重复效应具有潜在的相似性。审查的范式包括词干完成,蒙版启动,视觉对象的重复启动和语义启动。试图在“组成过程”框架内关联发现,并讨论了行为,血液动力学和神经生理学数据之间的关系。然而,鉴于潜在的混淆因素(例如显式记忆),对结果的解释并不总是很明确,并且为以后的引发神经影像学研究提出了一些建议。这种减少在非人类灵长类动物的单细胞记录中所测得的刺激重复效应具有潜在的相似性。审查的范式包括词干完成,蒙版启动,视觉对象的重复启动和语义启动。试图在“组成过程”框架内关联发现,并讨论了行为,血液动力学和神经生理学数据之间的关系。然而,鉴于潜在的混淆因素(例如显式记忆),对结果的解释并不总是很明确,并且为以后的引发神经影像学研究提出了一些建议。这种减少在非人类灵长类动物的单细胞记录中所测得的刺激重复效应具有潜在的相似性。审查的范式包括词干完成,蒙版启动,视觉对象的重复启动和语义启动。试图在“组成过程”框架内关联发现,并讨论了行为,血液动力学和神经生理学数据之间的关系。然而,鉴于潜在的混淆因素(例如显式记忆),对结果的解释并不总是很明确,并且为以后的引发神经影像学研究提出了一些建议。试图在“组成过程”框架内关联发现,并讨论了行为,血液动力学和神经生理学数据之间的关系。然而,鉴于潜在的混淆因素(例如显式记忆),对结果的解释并不总是很明确,并且为以后的引发神经影像学研究提出了一些建议。试图在“组成过程”框架内关联发现,并讨论了行为,血液动力学和神经生理学数据之间的关系。然而,鉴于潜在的混淆因素(例如显式记忆),对结果的解释并不总是很明确,并且为以后的引发神经影像学研究提出了一些建议。
更新日期:2019-11-01
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