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Related Concept Videos

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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Elaborative rehearsal is a crucial cognitive strategy that strengthens information encoding in long-term memory by making meaningful connections between new data and pre-existing knowledge. This approach contrasts with maintenance rehearsal, which involves simple repetition without delving into the significance of the information. While maintenance rehearsal might temporarily keep information active in short-term memory, it is less effective for long-term retention.
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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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Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
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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.
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Perceiving while producing: Modeling the dynamics of phonological planning.

Kevin D Roon1, Adamantios I Gafos2

  • 1The CUNY Graduate Center, 365 Fifth Avenue, Suite 7107, New York, NY 10016, USA, +1 (212) 817-8825; Haskins Laboratories, 300 George Street, Suite 900, New Haven, CT 06511, USA.

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Summary

This study introduces a dynamical model of phonological planning, explaining how speech production and perception interact in real-time. The model formalizes how perception influences ongoing response planning, supported by evidence from response-distractor tasks.

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Area of Science:

  • Cognitive Science
  • Psycholinguistics
  • Computational Neuroscience

Background:

  • Speech production and perception are fundamental cognitive processes.
  • Understanding their real-time interaction is crucial for modeling human communication.
  • Previous models often lack a dynamic framework for online processing.

Purpose of the Study:

  • To present a dynamical model of phonological planning.
  • To formally instantiate the interaction between speech production and perception.
  • To account for experimental findings in concurrent speech tasks.

Main Methods:

  • Development of a dynamical model based on the response-distractor task.
  • Formalization of how perception affects ongoing response planning.
  • Utilizing dynamic fields as the key representational unit.

Main Results:

  • The model accounts for a range of results from previous studies.
  • Parameter setting is achieved through the attainment of stable activation distributions.
  • Key properties of representations are derived from the model's dynamics.

Conclusions:

  • The proposed dynamical model offers a formal account of speech production-perception interaction.
  • Dynamic fields provide a mechanism for representing and updating phonological information.
  • The model successfully explains how perception influences planning in real-time processing.