COMPARATIVE STUDY OF SOUND LOCALIZATION

声音定位的比较研究

• 批准号: 3215992
• 负责人: RICKYE S HEFFNER
• 金额: $ 9.53万
• 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/3215992
• 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