Controlling Auditory Feedback in Songbird Vocalization

控制鸣禽发声中的听觉反馈

• 批准号: 6360699
• 负责人: DAVID S VICARIO
• 金额: $ 16.16万
• 依托单位: ROCKEFELLER UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6360699
• 关键词: age difference; animal communication behavior; audiometry; audiotape; auditory feedback; biofeedback; biomedical equipment development; conditioning; developmental neurobiology; developmental psychology; electronic recording system; juvenile animal; longitudinal animal study; mature animal; neuroregulation; phonology; radio controlled electronic stimulator; songbirds; sound perception; stimulus /response; visual perception; vocalization

DESCRIPTION (provided by applicant): The PI proposes to develop and test a novel method for studying the contribution of auditory feedback from an individual's own vocalizations to vocal production and to vocal learning. This work will be done in a songbird, the zebra finch, because the songbird vocal system provides the most accessible animal model for studying some of the basic mechanisms of human speech. Young songbirds learn their vocalizations from external tutors through a process of imitation that resembles human speech acquisition. Vocal imitation depends on auditory information not only to hear the vocalizations that are copied, but also to process the individual's own vocalizations so that they are shaped to match the tutor's. Vocal production and sensory processing of vocal signals depend on specialized structures that have been identified in the songbird foreb1ain. To date, methods for studying the role of audition in songbird vocal learning have been either crude, e.g. surgical deafening, or partial, e.g. episodic delayed feedback delivered through speakers. A more precise method of delivering auditory information would permit the role of real-time auditory feedback in song learning and maintenance to be quantitatively assessed. The PI proposes 1) to develop a novel headphone-microphone device, worn by the bird, that will enable auditory feedback during vocalization to be controlled and manipulated, 2) to present altered auditory feedback during vocal production in adults and assess song stability, and 3) to present altered auditory feedback in juveniles during vocal practice and assess effects on song production and learning. These studies will produce an initial body of data that will drive significant future research at both the behavioral and neural levels. The eventual results will advance our understanding of fundamental mechanisms of vocal learning in songbirds.

描述（由申请人提供）：PI建议开发和测试 研究听觉反馈的贡献的新方法 个人对声乐制作和声乐学习的声音。这 工作将在鸣禽的斑马雀科中完成，因为鸣禽声音 系统提供了最容易获得的动物模型，用于研究一些基本的动物模型 人类言语的机制。年轻的鸣禽从 外部导师通过类似于人类演讲的模仿过程 获得。声带模仿不仅取决于听觉信息 复制的发声，但也要处理个人的发声 发声以使它们的形状与教师的形状相匹配。人声产生 声音信号的感官处理取决于专业结构 已在鸣鸟的前B1ain中识别出来。迄今为止，学习方法 试镜在鸣歌声音学习中的作用要么是粗略的，例如 手术聋或部分，例如发出的情节延迟反馈交付 通过演讲者。传递听觉信息的更精确的方法 将允许实时听觉反馈在歌曲学习和 维护以进行定量评估。 PI建议1）开发 新型的耳机微粒设备，由鸟穿着，可以使听觉 在发声过程中的反馈要控制和操纵，2） 成人声乐产生期间听觉反馈改变并评估歌曲 稳定性和3）在少年中呈现改变的听觉反馈 声带实践和评估对歌曲制作和学习的影响。这些 研究将产生最初的数据主体，这些数据将推动未来的巨大未来 在行为和神经水平上研究。最终的结果将 促进我们对声音学习基本机制的理解 鸣禽。