Vocabulary Size in Speech May Be an Early Indicator of Cognitive Impairment

• Eiji Aramaki ,

  * E-mail: aramaki@is.naist.jp

  Affiliation Nara Institute of Science and Technology (NAIST), 8916–5 Takayama, Ikoma City, 630–0192, Japan

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• Shuko Shikata,

  Affiliation Nara Institute of Science and Technology (NAIST), 8916–5 Takayama, Ikoma City, 630–0192, Japan

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• Mai Miyabe,

  Affiliation Wakayama University, Sakaedani 930, Wakayama City, 640–8510, Japan

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• Ayae Kinoshita

  Affiliation Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Syogoin, Sakyo-ku, Kyoto City, 606–8507, Japan

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