COMPARATIVE STUDY OF SOUND LOCALIZATION

建议的项目是对哺乳动物听力的比较研究。 并强调声音的本地化。长期目标是 确定生态的、形态的和生理的 听力变异与声音定位的相关性 哺乳动物的能力。直接的目的是检查听觉 所选物种的能力是因为他们的知识 超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 三种化石啮齿动物(山狸、 裸鼹鼠和草原狗)，b)调查两者之间的关系 在声音定位敏锐度和视觉之间，c)比较 具有活动和非活动羽片的哺乳动物的定位能力 侧向声场的声音。D)调查两国之间的关系 演奏者的声音定位和脑干形态 上橄榄复合体的组织学初步分析 已确定本地化能力的物种，e) 目的探讨白化病对双耳功能的影响。 测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 对听觉研究感兴趣的物种：多刺小鼠和 小龙猫。 这个项目的最终目标是获得 他对理解人类中枢的功能有用吗？ 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 关于白化病对听力的影响的信息。

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.