MAGNETOENCEPHALOGRAPHIC RESPONSES CORRESPONDING TO INDIVIDUAL SUBJECTIVE PREFERENCE OF SOUND FIELDS
MAGNETOENCEPHALOGRAPHIC RESPONSES CORRESPONDING TO INDIVIDUAL SUBJECTIVE PREFERENCE OF SOUND FIELDS
复制标题
与个人主观声场偏好相对应的脑磁反应
DOI：
10.1006/jsvi.2002.5265
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发表时间：
2002
影响因子：
4.7
通讯作者：
Y. Ando
中科院分区：
文献类型：
--
作者：
Y. Soeta;Satoshi Nakagawa;M. Tonoike;Y. Ando
摘要为了研究人类皮层对声场主观偏好的反应，本文试图分析单次反射延迟时间变化条件下脑磁图（MEG）的自相关函数（ACF）。根据以往的研究，假设脑磁图α波范围（8-13 Hz）的相似重复特征与主观偏好有关。源信号为持续时间为0.35 s的单词“piano”。延迟时间Δt1分为5个级别（0、5、20、60和100 ms）。各被试主观偏好的量表值通过配对比较检验得到。将参考刺激（Δt1=0 ms）和测试刺激（Δt1=0、5、20、60和100 ms）组合交替呈现50次，以比较脑电测量结果与主观偏好的量表值。研究发现，个体的主观偏好与脑磁图α波的有效ACF持续时间呈线性相关。
Abstract To investigate human cortical responses that correspond to subjective preference of sound fields, an attempt is made here to analyze the autocorrelation function (ACF) of magnetoencephalography (MEG) under the condition of varying delay time of single reflections. According to previous studies, it is assumed that a similar repetitive feature of the MEG alpha-waves range (8–13 Hz) is related to subjective preference in terms of the effective duration of the ACF. The source signal was the word “piano” which had a 0·35 s duration. The delay time, Δt1, was varied at five levels (0, 5, 20, 60, and 100 ms). The scale values of the subjective preference of each subject were obtained by the paired-comparison tests. To compare the results of the MEG measurements with the scale values of the subjective preference, combinations of a reference stimulus (Δt1=0 ms) and test stimuli (Δt1=0, 5, 20, 60, and 100 ms) were presented alternately 50 times, and the MEGs were analyzed. It is found that subjective preference for each individual and the effective duration of the ACF of the MEG alpha waves are linearly related.
影响因子：
3.7
作者：
Halgren, E;Raij, T;Hari, R
通讯作者：
Hari, R