Dynamical analysis of the human brain in relation to the subjective attributes for sound and visual environment

人脑与声音和视觉环境主观属性的动态分析

基本信息

批准号：
09838022
负责人：
ANDO Yoichi
金额：
$ 2.24万
依托单位：
KOBE UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

项目摘要

Based on the auditory-brain model for sound fields for describing the subjective attributes, subjective attributes for sound field and brain activity in relation to the relationship between the factors extracted from the autocrrelation function (ACF) and interaural crosscorrelation function were investigated. As for the visual environment, the relationship between the temporal activity for visual stimulus and subjective response were investigated in order to establish the visual-brain model for evaluating the visual environment.1. It was found that typical fundamental attributes, 1 (1) the preferred delay time of a reflection for performers, (2) individual difference in relation to the delay time of a reflection and the subsequent reverberation time, (3) subjective preference for the modulated delay time of reflection and (4) the speech intelligibility of sound fields can be described by the factors extracted from the ACE and interaural crosscorrelation function.2. The value of tau_e of alpha-brain waves is closely related to the subjective preference for preferred delay time of reflection using vocal music as a source signal.3. The sequential visual images of camphor leaves are analyzed by the autocorrelation function, the correlation dimension and the crosscorrelation function. The preferred condition is related to the effective duration of the ACE.4. Subjective flicker rates correspond well to missing fundamental components for stimuli with high-frequency components.5. The results of preference judgment for sinusoidal movements of a single target in vertical and horizontal directions show that the most preferred period for the vertically moving stimuli are significantly shorter than those for the horizontally moving stimuli.

基于用于描述主观属性的声场的听觉脑模型，声场主观属性和大脑活动与从独立性函数（ACF）中提取的因子之间的关系和脑部互相关函数之间的关系有关。至于视觉环境，研究了视觉刺激的时间活动与主观反应之间的关系，以建立用于评估视觉环境的视觉脑模型。1。发现典型的基本属性，1（1）表演者反射的首选延迟时间，（2）与反射的延迟时间和随后的回响时间相关的个体差异，（3）对反射时间的调制延迟时间的主观优先偏好，以及（4）从功能上描述了声音的语音清理性，该功能可通过ace和Ace提取。 Alpha-Brain波的Tau_e的值与使用声音作为源信号的首选延迟反射时间的主观偏好密切相关。3。通过自相关函数，相关维度和互相关函数来分析樟脑叶的顺序视觉图像。首选条件与ACE的有效持续时间有关。4。主观闪烁率与具有高频成分的刺激缺失的基本成分相对应。5。在垂直和水平方向上单个目标的正弦运动的偏好判断结果表明，垂直运动刺激的最优选时期比水平移动刺激的结果明显短。