相关实验视频
Updated: Jun 24, 2026
09:23
A Low Cost Setup for Behavioral Audiometry in Rodents
Published on: October 16, 2012
13.2K
[在成年人中比较纯音声声度和听觉平稳状态响应值]
E S Garbaruk1, S M Vikhnina1, L E Golovanova2,3,4
1Laboratory of Hearing and Speech of the Pavlov First Saint Petersburg State Medical University, Saint Petersburg, Russia.
Vestnik otorinolaringologii
|March 1, 2026
概括
听觉稳定状态响应 (ASSR) 是一个可靠的听力测试对于成年人,当纯色调听力测量 (PTA) 是不可行的或产生无效的结果. 在特定的音频录像类型中,PTA和ASSR之间存在差异.
科学领域:
- 听力学 听力学是指听力学.
- 神经科学是一个神经科学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- 纯音调听力测量 (PTA) 是成人听力评估的标准.
- 听觉脑干反应 (ABR) 和听觉稳定状态反应 (ASSR) 通常被保留用于客观评估,特别是在复杂的情况下.
研究的目的:
- 为了比较PTA和ASSR在语音频率上的听力值.
- 调查PTA和ASSR值之间观察到的任何差异背后的原因.
主要方法:
- 18至104岁的244名患者接受了 ENT 检查,PTA (空气和骨传导),ABR 和 ASSR.
- 在不同频率的PTA和ASSR之间进行了值比较.
- 分析包括差异与听力图类型,听力损失程度和年龄的相关性.
主要成果:
- ASSR和PTA值显示中度相关性 (500-1000 Hz时为0.7-0.71,2000-4000 Hz时为0.54-0.58).
- 在1000Hz时最小的差异 (0.8-11.8dB),在4000Hz时最大的差异 (13.7-15.1dB).
- 在值差异,斜率听力图类型和高频率 (2000-4000 Hz) 之间发现了显著的相关性.
结论:
- ASSR是成年人听力评估的可靠方法,特别是在PTA无法访问或不确定的情况下.
- 临界值差异在倾斜音频图的患者中更为明显.
- 在特定情况下,ASSR高频门可能会比PTA提供优势.
相关概念视频
01:31Hearing
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.
00:53Sound Intensity Level
Humans perceive sound by hearing. The human ear helps sound waves reach the brain, which then interprets the waves and creates the perception of hearing. The loudness of the environment in which a person is located determines whether they can distinguish between different sound sources.
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
The human ear can perceive an extensive range of sound intensity, necessitating the use of the logarithmic scale to define a physical quantity—the intensity level. It is a ratio of two intensities and hence a...
01:20Assessment of Ventilation I: Respiratory Rate
Assessment of Ventilation
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Critical Guidelines for Assessing Ventilation:
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
01:28Physical Assessment of the Respiratory Tract IV: Auscultation
Auscultation is a crucial component of the physical assessment of the respiratory tract. It offers valuable insights into airflow through the bronchial tree and potential lung obstructions. This process involves careful listening to breath, voice, and adventitious sounds, which can reveal a wealth of information about a patient's respiratory health.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
Breath Sounds
Breath sounds are categorized into vesicular, bronchovesicular, and bronchial.
01:17Auditory Perception
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the cochlea, a...
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Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.