在语音制作过程中对听觉冲击的时空空间映射
Garret Lynn Kurteff1, Alyssa M Field1, Saman Asghar1,2
1Department of Speech, Language, and Hearing Sciences, Moody College of Communication, The University of Texas at Austin, Austin, Texas 78712.
概括
在发言过程中,大脑选择性地抑制听觉发作反应,这些响应对于感知语音时间至关重要. 这种抑制是因为当我们说话时,这些反应与内部预测是多余的.
科学领域:
- 神经科学是一个神经科学.
- 听觉感知是一种听觉感知.
- 语音处理 语音处理
背景情况:
- 人类的听觉皮层根据时间和光谱特征来处理语音.
- 后部上部旋回应区分声学边界 (发病) 和声学内容 (持续).
- 听觉系统监控自我产生的语音,以实时纠正错误,导致语音生产期间的神经反应被抑制.
研究的目的:
- 调查听觉发作和持续反应在语音产生期间与感知相比是否受到不同的影响.
- 确定听觉发作响应在语音感知与语音产生中的功能作用.
主要方法:
- 在17名患有的患者 (儿科,青少年,成年人) 中记录了内脑电图 (iEEG).
- 患者执行了一项阅读/倾听任务,以引起语音感知和发声.
- 分析的重点是识别和比较皮质和岛内持续的听觉反应.
主要成果:
- 在双边听力皮层中发现了开始和持续的语言反应.
- 与感知相比,在语音制作期间观察到选择性抑制发病反应.
- 声学特征调整在感知和生产之间抑制的发病反应方面保持稳定.
- 在感知和生产过程中,听觉发作反应和声学调也在后侧岛屿中被发现.
结论:
- 听觉发作反应,对于语音感知时间至关重要,在语音产生过程中被抑制,因为它们变得冗余,具有预测机制.
- 后半岛可能代表一个独特的听觉处理区域,参与多感官集成和语音期间的反控制.
相关概念视频
Auditory Pathway
5.1K
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
5.1K
Perceiving Loudness, Pitch, and Location
196
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
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...
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...
196
Hearing
51.9K
When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
51.9K


