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Related Concept Videos

Perception of Sound Waves01:01

Perception of Sound Waves

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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...
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Auditory Perception01:17

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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...
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Perceiving Loudness, Pitch, and Location01:21

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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...
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Factors Affecting Perception01:25

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Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
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Perception01:28

Perception

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Perception is a fundamental psychological process that enables individuals to organize, interpret, and consciously experience sensory information. This process is crucial for understanding and interacting with the world around us. It includes both bottom-up and top-down processing, each playing a distinct role in how we perceive our environment.
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Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
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Exploring Perception of Vibrations from Rail: An Interview Study.

Laura Maclachlan1, Kerstin Persson Waye2, Eja Pedersen3

  • 1Department of Public Health and Community Medicine, University of Gothenburg, Box 414, 40530 Göteborg, Sweden. laura.maclachlan@amm.gu.se.

International Journal of Environmental Research and Public Health
|October 27, 2017
PubMed
Summary

People living near railways experience vibrations, often accepting them but worrying about safety and property. Chronic exposure may impact well-being and coping strategies due to lack of control.

Keywords:
annoyancepublic healthquality of liferail vibrationssustainable transport

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Area of Science:

  • Environmental Science
  • Sociology
  • Urban Planning

Background:

  • Rail transport is a sustainable travel option with increasing global traffic.
  • The impact of rail vibrations on the quality of life for nearby residents is not well understood.
  • Understanding resident perceptions is crucial for sustainable urban development and well-being.

Purpose of the Study:

  • To explore how populations living near railways perceive and describe rail-induced vibrations.
  • To identify key themes and concerns related to vibration experiences in residential environments.
  • To investigate the psychological and social implications of chronic vibration exposure.

Main Methods:

  • A qualitative study was conducted in Sweden's Västra Götaland and Värmland regions.
  • Semi-structured interviews were performed in participants' homes.
  • 17 participants were interviewed, achieving a 26.3% response rate.

Main Results:

  • Vibration experiences were described through sensory details.
  • Key themes included habituation, acceptance, and concerns about property damage, family safety, and general security.
  • While direct health effects were not reported, chronic exposure may hinder home restoration and coping.

Conclusions:

  • Rail vibrations are perceived through multiple senses, influencing residents' quality of life.
  • Lack of control over vibration exposure can lead to altered coping mechanisms and potential negative health impacts.
  • Further research is needed to understand the long-term effects of rail vibrations on resident well-being and develop mitigation strategies.