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Neurocognitive mechanisms of synesthesia.

机译：联觉的神经认知机制。

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摘要

Synesthesia is a condition in which stimulation of one sensory modality causes unusual experiences in a second, unstimulated modality. Although long treated as a curiosity, recent research with a combination of phenomenological, behavioral, and neuroimaging methods has begun to identify the cognitive and neural basis of synesthesia. Here, we review this literature with an emphasis on grapheme-color synesthesia, in which viewing letters and numbers induces the perception of colors. We discuss both the substantial progress that has been made in the past fifteen years and some open questions. In particular, we focus on debates in the field relating to the neural basis of synesthesia, including the relationship between synesthesia and attention and the role of meaning in synesthetic colors. We propose that some, but probably not all, of these differences can be accounted for by differences in the synesthetes studied and discuss some methodological implications of these individual differences.
机译：联觉是一种情况，其中一种感觉模态的刺激导致第二种未刺激模态的异常经历。尽管长期以来一直出于好奇，但结合现象学，行为和神经影像学方法的最新研究已开始识别联觉的认知和神经基础。在这里，我们回顾该文献，重点是字素-颜色联觉，其中查看字母和数字会引起对颜色的感知。我们讨论了过去十五年来取得的实质性进展以及一些未解决的问题。特别是，我们专注于与联觉的神经基础有关的领域的辩论，包括联觉和注意之间的关系以及意义在联觉颜色中的作用。我们建议，这些差异中的一些（但可能不是全部）可以由研究的合成物中的差异来解释，并讨论这些个体差异的一些方法学含义。

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