年龄对噪音中的语音神经跟踪的影响
HyunJung An1,2, JeeWon Lee1,3, Young-Jin Park4
1Center for Intelligent & Interactive Robotics, Korea Institute of Science and Technology, 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Republic of Korea.
Brain sciences
|August 28, 2025
概括
年长的成年人表现出更强的频神经跟踪语音在噪音中,可能是作为补偿机制. 这种神经活动与认知功能和听觉敏感性有关,尽管工作记忆
科学领域:
- 神经科学
- 听觉处理
- 认知衰老
背景情况:
- 由于听力和认知能力下降,老年人在杂的环境中难以理解语言.
- 即使在正常至轻度听力损失的老年人中,也存在言语与噪音的个体差异.
- 了解这些差异的神经和认知基础对于解决与年龄相关的听力挑战至关重要.
研究的目的:
- 研究老年人语音与噪音感知,神经语音跟踪 (三角形和三角形脑电图振荡) 和认知功能之间的关系.
- 为了比较年轻人和老年人的神经语音跟踪.
- 探索老年人的认知能力,听觉敏感性和神经活动之间的关联.
主要方法:
- 在语音识别任务中检查了delta (1-4 Hz) 和theta (4-8 Hz) 的脑电图 (EEG) 振荡.
- 收集了23名年轻成年人 (20-35岁) 和23名老年人 (65-80岁) 的EEG数据.
- 对老年人进行认知评估,并在个性化水平上进行语音识别任务.
主要成果:
- 年龄显著影响了语音识别的准确性和响应时间.
- 年龄较大的成年人表现出更强的甲基波段神经跟踪,而三角波段跟踪显示没有年龄差异.
- 认知能力下降,听力敏感性降低和微型精神状态检查 (MMSE) 评分与年龄相关的差异有显著联系.
结论:
- 在老年人中,theta带神经跟踪可以作为语音噪音处理的补偿机制.
- 工作记忆在神经跟踪中的作用需要进一步的研究,考虑额外的认知和语言因素.
- 未来的研究应该解决局限性问题,例如对两年龄组进行认知评估,以澄清年龄,听力和认知状态的影响.
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
29.2K
04:30An Experimental Paradigm for Measuring the Effects of Ageing on Sentence Processing
Published on: October 25, 2019
5.7K
相关概念视频
Hearing
48.1K
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.
48.1K
The Cochlea
41.1K
The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
41.1K
Perception of Sound Waves
4.7K
The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
4.7K
Auditory Pathway
7.2K
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...
7.2K
Perceiving Loudness, Pitch, and Location
1.3K
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...
1.3K
