相关实验视频
Updated: Mar 14, 2026

Infant Auditory Processing and Event-related Brain Oscillations
Published on: July 1, 2015
语音感知和准备得到了整个发育过程中独特的神经动态的支持
Yanni Liu1, Amanda Hampton Wray2, Soo-Eun Chang1,3
1Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA.
贝塔振荡对于语音定时至关重要,显示出发育上的差异. 成年人表现出成熟的β功率在语音任务期间下降,而儿童则表现出成熟的β功率下降.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 语音科学 语言科学
背景情况:
- 神经振荡,特别是贝塔振荡 (13-30 Hz),对于精确的定时和语音中的感觉运动集成至关重要.
- 贝塔振荡支持运动规划,注意力和预期,但它们在语音处理中的发育轨迹尚不清楚.
研究的目的:
- 为了研究在语音感知和发声过程中的β振动动态的发育差异.
- 为了比较成人和儿童在不同语音相关任务中的β功率调制.
主要方法:
- 脑电图 (EEG) 用于记录28名成人和50名儿童的大脑活动.
- 参与者执行了语音感知 ("听") 和生产 ("说") 任务,以及一个控制任务 ("看").
- 在三个不同的时间窗口中分析了相对于任务线索的β功率变化.
主要成果:
- 成年人在所有时间窗口和条件中显示出显著的β功率下降,表明成熟的整合.
- 儿童表现出最小的β减小,没有显著的条件特异性影响.
- 儿童的β调节与年龄有负相关,这表明神经正在进行神经成熟.
结论:
- 在语音处理过程中的β振荡动态中存在显著的发育差异.
- 这些发现强调了从童年到成年时代支持语音定时和感官运动控制的神经机制的成熟变化.
更多相关视频
14:05Behavioral Assessment of Hearing in 2 to 4 Year-old Children: A Two-interval, Observer-based Procedure Using Conditioned Play-based Responses
Published on: January 23, 2017
06:07Exploring Infant Sensitivity to Visual Language using Eye Tracking and the Preferential Looking Paradigm
Published on: May 15, 2019
相关概念视频
Language Development
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
Hearing
Perceiving Loudness, Pitch, and Location
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Perception of Sound Waves
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
Higher Mental Functions of the Brain: Language
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
Auditory Pathway
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...