WITHIN AND BETWEEN CHANNEL REPRESENTATIONS

描述：本研究的目的是为了更好地了解 对复杂的声音刺激的感知。听觉系统具有 将传入声音分解为不同频率的属性 频道。相比之下，我们的感知是统一的，这取决于 跨频率和跨时间的信息集成。长的- 拟议研究的长期目标是了解 跨频率的信息集成。特别值得关注的是 层次信息和时态信息的集成，具有两个特点 在频道中编码的宽带声音。这个目标是 通过比较心理物理实验和 处理的最优统计模型应用于 频道。B联合考虑人类表现预测 通过最优模型，估计了电平和电平的频率选择性 可以获得临时任务。然后，所得到的模型可能是 使用日益复杂的任务进行测试，在这些任务中，级别和 宽带刺激的时间特征是不同的。到了这样的程度 宽带电平和时间特性变化的敏感度 成功地对声音进行了建模，并与为 听力受损的人也可以效仿。

DESCRIPTION: The objective of this research is to better understand the perception of complex acoustical stimuli. The auditory system has the property that incoming sounds are decomposed into different frequency channels. In contrast, our percepts are unified, depending on the integration of information across both frequency and time. The long- term objectives of the proposed research is to understand the integration of information across frequency. Of particular interest is the integration of level and temporal information, two features of broadband sounds encoded in frequency channels. This objective is addressed by comparing the result of psychophysical experiments and optimal statistical models of processing applied at the level of frequency channels. B jointly considering human performance predicted by optimal models, estimates of frequency selectivity for level and temporal tasks may be obtained. Then, the resulting models may be tested using increasingly complex tasks, tasks in which both level and temporal features of broadband stimuli are varied. To the degree that the sensitivity to changes in level and temporal features of broadband sounds are successfully modeled, comparisons with models derived for hearing impaired individuals can follow.