Masking in the Auditory System

听觉系统的掩蔽

• 批准号: 6798259
• 负责人: TERRY T TAKAHASHI
• 金额: $ 36.02万
• 依托单位: UNIVERSITY OF OREGON
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2008-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6798259
• 关键词: auditory cortex; auditory discrimination; auditory pathways; auditory stimulus; behavioral /social science research tag; binaural hearing; inferior colliculus; magnetic resonance imaging; neural information processing; noise; operant conditionings; owls; perceptual maskings; psychoacoustics; sound perception

DESCRIPTION (provided by applicant): We propose to examine the neural mechanisms of spatial hearing in the presence of acoustical reflections. The inferior colliculus in our animal model, the barn owl, contains a topographic map of auditory space the activity across which represents the spatial relationships of sound-sources in the environment. We will reconstruct the neural image evoked by a sound from an actively-emitting source and a delayed reflection. The behavioral consequences of the owls using this image are predicted and tested in parallel behavioral experiments.

描述(由申请人提供)：我们建议研究在存在声学反射的情况下空间听觉的神经机制。我们动物模型中的下丘，谷仓猫头鹰，包含了听觉空间的地形图，活动跨越该地形图代表了环境中声源的空间关系。我们将重建由主动发射源和延迟反射的声音引起的神经图像。利用这幅图像对猫头鹰的行为后果进行了预测，并在平行的行为实验中进行了测试。