Related Experiment Video
Updated: Mar 8, 2026
07:13
Modified Experimental Conditions for Noise-Induced Hearing Loss in Mice and Assessment of Hearing Function and Outer Hair Cell Damage
Published on: February 10, 2023
2.9K
Amplified music exposure carries risks to hearing
Valéria Gomes da Silva1, Carlos Augusto Costa Pires de Oliveira1, Pedro Luíz Tauil1
1University of Brasília, Brazil.
International Journal of Pediatric Otorhinolaryngology
|January 23, 2017
Summary
Exposure to amplified music can harm outer hair cell function in high school students. This study found a significant association between loud music listening and reduced hair cell functionality, particularly at 8 kHz.
Area of Science:
- Audiology
- Ototoxicology
- Public Health
Background:
- Outer hair cells (OHCs) are crucial for hearing sensitivity.
- Exposure to loud noise is a known risk factor for hearing damage.
- Understanding the impact of recreational music exposure on OHCs is important for preventative strategies.
Purpose of the Study:
- To examine the relationship between amplified music exposure and outer hair cell function in adolescents.
- To identify potential hearing risks associated with recreational music listening habits.
Main Methods:
- A case-control study involving 86 high school students.
- Audiometry, immittance audiometry, and distortion-product otoacoustic emission (DPOAE) tests were performed.
- Subjects were categorized into exposed and unexposed groups based on listening habits.
Main Results:
- A majority of students exhibited reduced outer hair cell function, primarily affecting frequencies around 8 kHz.
- In a subset of 60 students (30 cases, 30 controls), 75% reported exposure to amplified music.
- Exposed individuals were over 9 times more likely to show altered outer hair cell function compared to unexposed individuals.
Conclusions:
- Amplified music exposure is significantly associated with diminished outer hair cell function.
- Adolescents exposed to loud music are at a higher risk for OHC damage.
- These findings highlight the need for awareness and potential interventions regarding music listening habits to preserve hearing health.
More Related Videos
Related Concept Videos
01:31Hearing
58.1K
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.
58.1K
00:53Sound Intensity Level
5.0K
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...
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...
5.0K
01:01Perception of Sound Waves
5.9K
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...
5.9K
01:15Auditory Pathway
8.3K
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...
8.3K
01:20Gene-Environment Interactions
1.3K
Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...
1.3K
01:09Beats
1.5K
The study of music provides many examples of the superposition of waves and the constructive and destructive interference that occurs. Very few examples of music being performed consist of a single source playing a single frequency for an extended period of time. A single frequency of sound for an extended period might be monotonous to the point of irritation, similar to the unwanted drone of an aircraft engine or a loud fan. Music is pleasant and exciting due to mixing the changing frequencies...
1.5K