WITHIN- AND BETWEEN-CHANNEL REPRESENTATIONS

渠道内和渠道间的表示

• 批准号: 2127096
• 负责人: VIRGINIA M RICHARDS
• 金额: $ 13.85万
• 依托单位: UNIVERSITY OF PENNSYLVANIA
• 依托单位国家: 美国
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-01-01 至 1997-12-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2127096
• 关键词: auditory discrimination; auditory stimulus; auditory threshold; human subject; loudness; mathematical model; neural information processing; noise; psychoacoustics; sensory signal detection; sound frequency

The objective of this research is to better understand the perception of complex auditory stimuli. The means by which this is to be achieved is by consideration of the representation of acoustical stimuli, and in particular the relationship between the representation of temporal and intensity aspects of the acoustical stimuli. The experiments are designed to, one the one h and, determine whether models which treat temporal and intensity information as being independently coded manner in which temporal and intensity information as being independently coded are able to account for psychophysical data, and on the other hand, examine the manner in which temporal and intensity information is combined both on either temporal or intensity information. A second experimental manipulation requires discriminations between complex sounds that vary systematically in terms of three features: intensity, envelope modulation and phase modulation. The ability to discriminate between such stimuli allows an estimation of the relative contribution of these features for the formation of complex auditory percepts, and allows an initial evaluation of the means by which these features are represented in the auditory system. The basic information concerning temporal and intensity processing in the auditory system that will result from this plan of study may provide a basis for the diagnosis and treatment of auditory impairment. Particularly important is the development of a means by which temporal and intensity processing may be independently tested.

这项研究的目的是为了更好地了解人们的看法 复杂的听觉刺激。 实现这一目标的手段是 通过考虑声音刺激的表示，并且 特别是时间和时间表示之间的关系 声刺激的强度方面。 实验是 旨在一对一地确定模型是否处理 时间和强度信息以独立编码方式 其中时间和强度信息是独立编码的 能够解释心理物理数据，另一方面， 检查时间和强度信息的方式 结合时间或强度信息。 一秒钟 实验操作需要区分复杂的声音 在三个特征方面系统地变化：强度、包络线 调制和相位调制。 区分能力 这种刺激可以估计这些刺激的相对贡献 形成复杂听觉感知的特征，并允许 对表示这些特征的方式进行初步评估 在听觉系统中。 与时间相关的基本信息 由此产生的听觉系统的强度处理 研究计划可以为诊断和治疗提供依据 听觉障碍。 尤为重要的是开发一个 时间和强度处理可以独立进行的方法 已测试。