COMPARATIVE STUDY OF SOUND LOCALIZATION

声音定位的比较研究

• 批准号: 3564459
• 负责人: RICKYE S HEFFNER
• 金额: $ 9.82万
• 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/3564459
• 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.

拟议的项目是一项哺乳动物听力的比较研究 强调声音定位。 长期目标是 确定生态、形态和生理 听觉和声音定位变化的相关性 哺乳动物的能力。 直接的目的是检查听觉 选择物种的能力，因为他们的知识， 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。 该项目的直接目标是a）确定听证会 三种穴居啮齿动物（山海狸， 裸鼹鼠和草原土拨鼠），B）研究 在声音定位敏锐度和视觉之间，c）比较 具有移动的和非移动的脊椎动物的定位能力 声音在横向领域。（一）研究与 声音定位和脑干形态学 上级橄榄复合体的初步组织学分析 已确定其定位能力的物种，e） 调查白化病对双耳功能的影响， 测定白化病猫的听觉能力，和f） 确定两个人的听觉和/或声音定位能力 感兴趣的听觉研究物种：多刺鼠和 栗鼠。 该项目的最终目标是获取信息， 他将有助于理解人类中枢神经系统的功能， 听觉系统 与人类健康直接相关的是 一项关于白化病猫的拟议研究， 关于白化病对听力影响的信息。