Auditory Comprehension of Language :

  • Kojima Tomoyuki
    Ichikawa Consultancy for Higher Brain Dysfunction. Hokuto Educational Foundation, Sendai Medical and Welfare Vocational College

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Other Title
  • 聴覚的言語理解の情報処理過程と障害メカニズム
  • From word sound processing to analysis of discourse
  • ―語音の処理から談話分析まで―

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Information processing involved in the auditory comprehension of language is reviewed. The process begins with capturing word sounds in which meanings are encoded and ends with the decoding of meanings from these word sounds. From the cognitive neuropsychological standpoint, the process of auditory comprehension of language can be divided into five steps, i. e., (1) capturing vocal sounds from the outside world by the brain (word sound processing), (2) categorization of the vocal sounds and matching them to templates (Japanese phonemes), (3) lexical/semantic processing, (4) parsing, and (5) analysis of discourse. In this article, the underlying mechanisms and neural correlates of each step are discussed. When the logogen model designed for English (a syllabic language) is applied to Japanese mora language for the purpose of explaining the mechanisms of information processing in Japanese, some discrepancies arise. Accordingly, a new logogen model for Japanese as mora language is proposed.

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