COMPARATIVE STUDY OF SOUND LOCALIZATION

声音定位的比较研究

• 批准号: 3215993
• 负责人: RICKYE S HEFFNER
• 金额: $ 10.95万
• 依托单位: UNIVERSITY OF TOLEDO
• 依托单位国家: 美国
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1993-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/3215993
• 关键词: Macaca; Rodentias; albinism; animal ecology; audiometry; auditory discrimination; auditory stimulus; auditory threshold; binaural hearing; brain stem; cats; chinchilla; environmental adaptation; evolution; external ear; histology; laboratory mouse; neuroanatomy; olivary body; psychoacoustics; sonar; sound frequency; visual fields

The proposed project is a comparative study of mammalian hearing with emphasis on sound localization. The long-range goals are to determine the ecological, morphological, and physiological correlates of the variation in hearing and sound localization abilities of mammals. The immediate aim is to examine the auditory abilities of species selected because a knowledge of their abilities would help answer questions concerning the evolutionary, anatomical, and physiological bases of hearing. The immediate goals of this project are to a) determine the hearing abilities of three species of fossorial rodents (mountain beaver, naked mole rat, and prairie dog), b) investigate the relationship between sound localization acuity and vision, c) compare the ability of mammals with mobile and nonmobile pinnae in localizing sounds in the lateral fields. d) investigate the relation between sound localization and brainstem morphology by performing preliminary histological analyses of the superior olivary complex of species whose localization ability has been determined, e) investigate the effect of albinism on binaural functions by determining the auditory abilities of albino cats, and f) determining the hearing and/or sound localization abilities of two species of interest to auditory research: the spiny mouse and chinchilla. The ultimate goal of this project is to gain information which would he of use in understanding the function of the human central auditory system. Of immediate relevance to human health is the proposed study of albino cats which is expected to provide information concerning the consequences of albinism to hearing.

拟议的项目是哺乳动物听力的比较研究 重点是声音定位。 长期目标是 确定生态、形态和生理 听力和声音定位变化的相关性 哺乳动物的能力。 直接目标是检查听觉 选择物种的能力是因为了解它们的知识 能力将有助于回答有关进化的问题， 听觉的解剖学和生理学基础。 该项目的近期目标是 a) 确定听证会 三种化石啮齿类动物（山河狸、 裸鼹鼠和土拨鼠），b）调查关系 声音定位敏锐度和视力之间，c) 比较 具有移动和非移动耳廓的哺乳动物的定位能力 侧面场中发出声音。 d) 研究之间的关系 通过执行声音定位和脑干形态 上橄榄复合体的初步组织学分析 其定位能力已确定的物种，e) 研究白化病对双耳功能的影响 确定白化猫的听觉能力，以及 f) 确定两个人的听力和/或声音定位能力 听觉研究感兴趣的物种：刺鼠和 龙猫。 该项目的最终目标是获取信息 他对理解人体中枢的功能有用吗？ 听觉系统。 与人类健康直接相关的是 拟议的白化猫研究预计将提供 有关白化病对听力的影响的信息。