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Related Concept Videos

Auditory Perception01:17

Auditory Perception

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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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Perception of Sound Waves01:01

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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.
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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

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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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Sensory Modalities01:15

Sensory Modalities

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Sensation typically is the process by which the sensory receptors and sense organs detect stimuli from the internal and external environment and transmit this information to the central nervous system for processing.
General senses refer to the broad category of sensory information detected by receptors in the body and can be further grouped into somatic and visceral senses. Somatic sensations include touch, pressure, temperature, and pain and are essential for navigating our environment and...
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The Influence of Multisensory Input On Voice Perception and Production Using Immersive Virtual Reality.

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  • 1Mount Sinai Health System, Department of Otolaryngology, New York, NY.

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Virtual reality revealed that auditory, visual, and audiovisual input significantly impact voice perception and production. Increased sensory input and background noise altered vocal loudness, effort, and comfort.

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Area of Science:

  • Auditory perception and speech production
  • Human-computer interaction
  • Virtual reality applications in acoustics

Background:

  • The influence of sensory input on voice perception and production is complex.
  • Immersive virtual reality (VR) offers a novel environment to study these influences.
  • Understanding these interactions is crucial for voice training and therapy.

Purpose of the Study:

  • To investigate the effects of auditory, visual, and combined audiovisual input on voice perception and production.
  • To utilize immersive virtual reality technology to create controlled sensory environments.
  • To quantify changes in self-perceived vocal qualities and objective acoustic measures.

Main Methods:

  • Thirty-one healthy participants experienced 18 sensory conditions in immersive VR.
  • Conditions varied auditory (reverberation) and visual (volume) stimuli, with and without background noise.
  • Voice perception (loudness, effort, comfort) and production (SPL, spectral moments) were measured.

Main Results:

  • Increased room volume, speaker-listener distance, audiovisual input, and background noise led to higher self-perceived vocal loudness and effort, and reduced comfort.
  • Objective measures showed increased sound pressure level (SPL) and spectral moment fluctuations across conditions.
  • Sensory input, beyond auditory cues, demonstrably affected vocal behavior.

Conclusions:

  • Auditory, visual, and audiovisual input significantly influence voice perception and production.
  • Findings advance the scientific understanding of sensory integration in vocal tasks.
  • VR provides a powerful platform for voice and speech training, addressing generalization challenges.