The role of superior temporal cortex in auditory timing.
The role of superior temporal cortex in auditory timing.
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DOI：
10.1371/journal.pone.0002481
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发表时间：
2008-06-25
期刊：
影响因子：
3.7
通讯作者：
Walsh, Vincent
中科院分区：
文献类型：
--
作者：
Bueti, Domenica;van Dongen, Eelco V.;Walsh, Vincent
最近，人们对时间知觉的神经机制产生了浓厚的兴趣。一个中心问题是，时间的表征是作为刺激通道、任务和持续时间长度的函数分布在大脑各区域，还是集中在单个特定的超通道网络中。答案似乎集中在前者上，许多主要不被认为是时间加工领域的领域仍然需要在时间领域进行研究。在这里，我们问的是，作为听觉通道特有区域的颞上回是否参与了听觉计时的处理。重复的经颅磁刺激作用于左侧和右侧的颞叶上回，同时参与者执行单音的时间或频率辨别任务。在刺激右侧颞叶上回后，观察到操作准确性显著下降，此外，反应不确定性增加，这是由刚刚可察觉的差异来衡量的。结果是特定于听觉的时间加工，在频率任务上的表现没有受到影响。我们的结果进一步支持了分布式时间处理的想法，并支持人脑中存在通道特定的时间区域。
Recently, there has been upsurge of interest in the neural mechanisms of time perception. A central question is whether the representation of time is distributed over brain regions as a function of stimulus modality, task and length of the duration used or whether it is centralized in a single specific and supramodal network. The answers seem to be converging on the former, and many areas not primarily considered as temporal processing areas remain to be investigated in the temporal domain. Here we asked whether the superior temporal gyrus, an auditory modality specific area, is involved in processing of auditory timing. Repetitive transcranial magnetic stimulation was applied over left and right superior temporal gyri while participants performed either a temporal or a frequency discrimination task of single tones. A significant decrease in performance accuracy was observed after stimulation of the right superior temporal gyrus, in addition to an increase in response uncertainty as measured by the Just Noticeable Difference. The results are specific to auditory temporal processing and performance on the frequency task was not affected. Our results further support the idea of distributed temporal processing and speak in favor of the existence of modality specific temporal regions in the human brain.
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影响因子：
5.3
作者：
Jahanshahi, Marjan;Jones, Catherine R. G.;Frith, Christopher D.
通讯作者：
Frith, Christopher D.
DOI：
10.1111/j.1749-6632.2002.tb07576.x
发表时间：
2002-01-01
期刊：
CREBELLUM: RECENT DEVELOPMENTS IN CEREBELLAR RESEARCH
影响因子：
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通讯作者：
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作者：
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通讯作者：
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影响因子：
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作者：
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影响因子：
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作者：
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