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Mechanisms Underlying the Development of Auditory Perce*

听觉感知发展的机制*

基本信息

批准号：
7844567
负责人：
MIMI Le PHAN
金额：
$ 0.77万
依托单位：
RUTGERS, THE STATE UNIV OF N.J.
依托单位国家：
美国
项目类别：
财政年份：
2009
资助国家：
美国
起止时间：
2009-06-01 至 2009-10-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/7844567
关键词：
Acoustics Address Adolescent Adult Affect Animals Auditory Auditory Perception Auditory area Automobile Driving Behavior Behavioral Birds Brain Categories Characteristics Chronic Data Development Discrimination Electrodes Employee Strikes Environment Exposure to Finches Goals Hearing Human Implanted Electrodes Individual Infant Language Lead Learning Light Measurable Measurement Measures Mediating Memory Methods Metric Modeling Nature Neurons Output Perception Phase Preparation Process Production Property Prosencephalon Research Role Sensory Sensory Process Shapes Signal Transduction Songbirds Speech Stimulus Testing Time Training auditory feedback base behavior influence contextual factors critical period experience insight male neurophysiology phonology research study response sensory system sound success vocal learning vocalization zebra finch

项目摘要

The P.I. proposes to study the role of auditory perception in mediating vocal learning in a songbird, the zebra finch. Young male zebra finches learn their songs from adult models through a process of imitation that resembles human speech acquisition. As in humans, normative vocal learning is dependent on two phases of learning. The first phase consists of establishing an auditory memory for the correct song model. The second phase involves of vocal practice in which the young bird compares, matches, and eventually refines his output to conform to the sensory representation of the model song (similar to the babbling that human infants prior to recognizable speech production). The proposed experiments will use neurophysiological and behavioral methods to further understand the mechanisms driving the formation of these auditory memories and how the quality of these memories relates to the quality of the vocal learning. Specifically, the P.I. will: 1) study the influence of the behavioral context during early exposure on auditory memory formation 2) measure in real time how perceptual tuning mediates auditory processing and discrimination for conspecific vocalizations 3) study the development of auditory memories as they relate to vocal imitation in young birds during the period of vocal learning. The research presented here will address fundamental questions regarding the interplay between vocal learning and perceptual tuning in development. Thus, the findings from this research will provide us with insights into the role of auditory experience on sensory development. The mechanisms by which auditory perception develops and affects vocal behavior has yet to been fully understood. By studying perception and vocal learning in a species that share similar characteristics to human speech learning, we hope to provide information on how listening to and interacting with relevant sounds during development affect the eventual processing and production of these signals

P.I.提议研究听觉感知在调解鸣禽斑马的声乐学习中的作用