Related Experiment Video
Updated: May 27, 2026
06:01
Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
Published on: December 9, 2022
[Non-auditory effects of noise].
Roberto Albera1, Ilaria Bin, Manuele Cena
1Dipartimento di fisiopatologia, Università degli Studi di Torino, Via Genova, 3 - 10100 Torino, Italy.
Giornale Italiano Di Medicina Del Lavoro Ed Ergonomia
|November 12, 2011
Summary
Noise pollution impacts cardiovascular, vestibular, and psychic systems. While research links noise to hypertension and anxiety, multiple causes and individual variability limit full understanding.
Area of Science:
- Physiology
- Environmental Health
- Psychology
Context:
- Noise exposure is a pervasive environmental stressor.
- Non-auditory effects impact multiple physiological and psychological systems.
- Existing research highlights links between noise and specific health conditions.
Purpose:
- To explore the non-auditory effects of noise exposure.
- To identify key physiological systems affected by noise.
- To discuss the challenges in classifying noise-induced pathologies.
Summary:
- Noise significantly affects cardiovascular, vestibular, and psychic functions.
- Studies correlate noise exposure with hypertension and anxiety disorders.
- Pathophysiology is partially understood, but multifactorial causes and individual variability remain limitations.
Impact:
- Highlights the broad physiological and psychological impact of noise pollution.
- Underscores the need for further research into noise-induced pathologies.
- Informs public health strategies for mitigating noise-related health risks.
Related Concept Videos
00:53Sound Waves: Interference
Sound waves can be modeled either as longitudinal waves, wherein the molecules of the medium oscillate around an equilibrium position, or as pressure waves. When two identical waves from the same source superimpose on each other, the combination of two crests or two troughs results in amplitude reinforcement known as constructive interference. If two identical waves, that are initially in phase, become out of phase because of different path lengths, the combination of crests with troughs...
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...
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...
01:12Local Anesthetics: Adverse Effects
While local anesthetics are generally safe and well-tolerated, they can occasionally cause adverse effects that vary in severity. Local anesthetics can induce toxicity at two distinct levels. They can either produce local effects through direct contact with the neural elements or be absorbed into the bloodstream from the injection site, leading to systemic effects.
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
Once absorbed into the systemic circulation, local anesthetics can affect the organs that depend on the functioning of sodium...
01:01Perception of Sound Waves
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 frequency...
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same frequency...
01:21Perceiving Loudness, Pitch, and Location
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 identifying...
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 identifying...