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Journal of Computer Science and Technology

, Volume 21, Issue 1, pp 95–105 | Cite as

Communication Between Speech Production and Perception Within the Brain—Observation and Simulation

  • Jianwu DangEmail author
  • Masato Akagi
  • Kiyoshi Honda
Article

Abstract

Realization of an intelligent human-machine interface requires us to investigate human mechanisms and learn from them. This study focuses on communication between speech production and perception within human brain and realizing it in an artificial system. A physiological research study based on electromyographic signals (Honda, 1996) suggested that speech communication in human brain might be based on a topological mapping between speech production and perception, according to an analogous topology between motor and sensory representations. Following this hypothesis, this study first investigated the topologies of the vowel system across the motor, kinematic, and acoustic spaces by means of a model simulation, and then examined the linkage between vowel production and perception in terms of a transformed auditory feedback (TAF) experiment. The model simulation indicated that there exists an invariant mapping from muscle activations (motor space) to articulations (kinematic space) via a coordinate consisting of force-dependent equilibrium positions, and the mapping from the motor space to kinematic space is unique. The motor-kinematic-acoustic deduction in the model simulation showed that the topologies were compatible from one space to another. In the TAF experiment, vowel production exhibited a compensatory response for a perturbation in the feedback sound. This implied that vowel production is controlled in reference to perception monitoring.

Keywords

speech communication human mechanism speech production speech perception 

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Copyright information

© Springer Science + Business Media, Inc. 2006

Authors and Affiliations

  1. 1.Japan Advanced Institute of Science and TechnologyIshikawaJapan
  2. 2.ATR Human Information Science LaboratoriesKyotoJapan

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