音声研究
Online ISSN : 2189-5961
Print ISSN : 1342-8675
8 巻 , 3 号
選択された号の論文の72件中1~50を表示しています
表紙
特集「音声と脳科学」
  • 今泉 敏
    原稿種別: 本文
    2004 年 8 巻 3 号 p. 3-4
    発行日: 2004/12/31
    公開日: 2017/08/31
    ジャーナル フリー
  • 小澤 由嗣, 今泉 敏
    原稿種別: 本文
    2004 年 8 巻 3 号 p. 5-14
    発行日: 2004/12/31
    公開日: 2017/08/31
    ジャーナル フリー
    Recent advances in neuro-cognitive and brain-imaging studies on speech communication are reviewed and their potential contributions to phonetic science are discussed. Topics are referred from brain imaging research on the role of emotional prosody for mind reading from speech, and on the neural processes of reading and sentence generation, as well as acquisition mechanisms of phonetic categories and neural plasticity.
  • 辰巳 格
    原稿種別: 本文
    2004 年 8 巻 3 号 p. 15-27
    発行日: 2004/12/31
    公開日: 2017/08/31
    ジャーナル フリー
    The most pervasive brain network model of spoken language processing is Wernicke-Lichtheim's classical view, which was revived by Geschwind in 1965 as the 'disconnexion' account. This has been established through various neuropsychological observations of language disorders of patients with aphasia, alexia and so on. The recent development of brain imaging techniques, e.g., PET (positron emission tomography), fMRI (functional MRI), MEG (magneto-encephalography) and NIRS (near infrared spectroscopy), has enabled us to directly investigate normal brain activities, and studies using these techniques challenge the disconnexion view. In this paper a brief summary of the classical view is given, and recent brain imaging studies are reviewed, primarily focused upon neural substrates of speech perception, the semantic system, phonological/phonetic encoding and motor programming.
  • 能田 由紀子, 本多 清志
    原稿種別: 本文
    2004 年 8 巻 3 号 p. 28-34
    発行日: 2004/12/31
    公開日: 2017/08/31
    ジャーナル フリー
    This review focuses on the localization and function of the neural center for speech motor control based on recent trends in re-evaluating the traditional views and our own brain imaging experiments using functional MRI. The first experiment with repetitions of short Japanese phrases indicated that the region in the inferior cerebellum for speech breathing and vocalization was more medial than that for articulation. The second experiment with changing and repetitive syllables revealed that the activity of the left anterior insula was found only in the task of changing syllables, and suggested that the insula was involved in phonetic encoding and motor planning.
  • 前川 喜久雄
    原稿種別: 本文
    2004 年 8 巻 3 号 p. 35-40
    発行日: 2004/12/31
    公開日: 2017/08/31
    ジャーナル フリー
    A layman's view about the brain science approach to speech was presented. The most obvious advantage of the brain science approach over the traditional behavioral approach consists in the possible clarification of speech encoding and decoding processes; the processes that remain largely untouched in the behavioral approach. Especially, construction of computational model of speech perception will open up a brand-new landscape of speech science. However, to achieve these goals effectively, brain science should pay more attention to the fruits obtained by the behavior approach. Experiments of brain science should be designed based upon sufficient understanding of the linguistic properties of experimental stimuli. It is especially important to pay enough attention for the probabilistic properties of linguistic signs. For example, the distinction between semantically normal and abnormal stimuli is not necessarily a dichotomy. It is possible to compute the occurrence probability of semantically deviant sentences using the power of powerful computer and large-scale annotated language corpora. In the same vein, retrieval of a speech corpus reveals that the long-believed distributional restriction of the /tyu/ mora in Japanese is not a strict one as long as spontaneous speech is concerned. Results of brain scientific experiments will enrich greatly our understanding of speech, if the experiments are designed correctly.
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