A neural decoding approach to auditory temporal assimilation
A neural decoding approach to auditory temporal assimilation
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DOI：
10.1007/s00521-010-0399-z
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发表时间：
2011-10
影响因子：
6
通讯作者：
H. Takeichi;T. Mitsudo;Y. Nakajima;G. Remijn;Y. Goto;S. Tobimatsu
中科院分区：
文献类型：
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作者：
H. Takeichi;T. Mitsudo;Y. Nakajima;G. Remijn;Y. Goto;S. Tobimatsu
通过构建高斯朴素贝叶斯分类器，我们重新分析了早期事件相关电位（ERP）研究中的数据，该研究被称为听觉时间同化。在听觉时间同化中，如果两个相邻的物理上不相等的时间间隔满足一定的关系，则由三个连续的短纯音标记的两个相邻的物理上不相等的时间间隔被错觉地感知为相等。分类器能够以> 79%的准确率区分被试是否参与了判断两个时间间隔之间的主观相等性的任务，并且能够以> 70%的准确率从个体平均ERP波形的主成分分数预测被试对每个刺激的主观判断。与准确性或Kullback-Leibler（KL）距离不同，Dupff信息表明在早期决策前阶段与听觉时间同化相关的大脑激活。这可能为我们提供一个简单而有用的神经解码方案来分析大脑中时间模式的信息处理。
By constructing Gaussian Naïve Bayes Classifiers, we have re-analyzed data from an earlier event-related potential (ERP) study of an illusion in time perception known as auditory temporal assimilation. In auditory temporal assimilation, two neighboring physically unequal time intervals marked by three successive tone bursts are illusorily perceived as equal if the two time intervals satisfy a certain relationship. The classifiers could discriminate whether or not the subject was engaged in the task, which was judgment of the subjective equality between the two intervals, at an accuracy of >79%, and from principal component scores of individual average ERP waveforms, we were able to predict their subjective judgments to each stimulus at an accuracy of >70%. Chernoff information, unlike accuracy or Kullback–Leibler (KL) distance, suggested brain activation associated with auditory temporal assimilation at an early pre-decision stage. This may provide us with a simple and useful neural decoding scheme in analyzing information processing of temporal patterns in the brain.