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

• 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
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09838022/
• 关键词: Audio-visual; Subjective attributes; Auditory-brain system; Continuous brain wave; Alpha-wave; Subjective preference; Autocorrelation function; Crosscorrelation function; 脳波; 自己相関

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.

基于描述声场主观属性的脑-脑模型，研究了声场主观属性与脑活动之间的自相关函数（ACF）和耳间互相关函数提取因子之间的关系。在视觉环境方面，研究了视觉刺激的时间活动与主观反应的关系，建立了评价视觉环境的视觉-脑模型.结果发现，典型的基本属性，1（1）表演者反射的首选延迟时间，（2）与反射延迟时间和随后的混响时间有关的个体差异，（3）对反射的调制延迟时间的主观偏好;声场的语音可懂度可以用从ACE和耳间互相关函数中提取的因子来描述.α-脑电波的tau_e值与以声乐为源信号的反射延迟时间的主观偏好密切相关.利用自相关函数、关联维数和互相关函数对樟树叶序列视觉图像进行了分析。首选条件与ACE的有效持续时间有关。主观闪烁率对应于缺失的基本成分的刺激与高频分量。对单个目标在垂直和水平方向上的正弦运动的偏好判断结果表明，垂直运动刺激的最偏好周期明显短于水平运动刺激。

项目成果

Hiroyuki Sakai: "Individual Subjective Preference of Listeners for Vocal Music Sources in Relation to the Subsequent Reverberation Time of Sound Fields" 16th Intern.Congr.Acoust.(ICA)(Seattle). (発表予定). (1998)

Hiroyuki Sakai：“与声场后续混响时间相关的听众对声乐源的个人主观偏好”，第 16 届实习生 (ICA)（西雅图）。

是永 雄二: "音場の時間構造が音声明瞭度に及ぼす影響の予測法(その2)-音節異聴モデルの提案-" 日本音響学会誌. 54. 263-275 (1998)

Yuji Korenaga：“预测声场时间结构对语音清晰度影响的方法（第 2 部分）- 音节断音模型的提议 -”日本声学学会杂志 54. 263-275 (1998)。

Kiminori Mouri: "Relationship between subjective preference for sound fields and brain activity with vocal music" Special issue of the Journal of Sound and Vibration on the Acoustics of Opera Houses. 発表予定. (1999)

Kiminori Mouri：“声场主观偏好与声乐大脑活动之间的关系”《歌剧院声学声音与振动杂志》特刊（1999 年）。

K.Nakatsuji et al.: "Coupling of 2-D and 3-D Modelling of Creek and Swamp System in Mangrove Estuaries" Proc.IAHR-APD Congress. 11. 395-403 (1998)

K.Nakatsuji 等人：“红树林河口溪流和沼泽系统的 2-D 和 3-D 建模耦合”Proc.IAHR-APD 大会。

陳 炯尭: "Relationship between subjective preference and the autocorrelation function of left and right cortical α-waves responding to the noise-burst Temp" 日本建築学会計画系論文集. 497. 67-74 (1997)

陈丙耀：“主观偏好与左右皮层α波对噪声突发温度的自相关函数的关系”日本建筑研究所规划杂志497. 67-74（1997）。