Internal representations and the conceptual operation of color in pure alexia with color naming defects

Kazuyoshi Fukuzawa, Motonobu Itoh, Sumiko Sasanuma, Tsutomu Suzuki, Yoko Fukusako, Tohru Masui

研究成果: Article査読

16 被引用数 (Scopus)

抄録

This research examined the structure of internal representation and the conceptual operation of color in two pure alexic cases (Case I and Case II) with color naming defects. Experiment I investigated the structure of the internal representation of different kinds of colors using a similarity judgment task. Experiment II examined categorical judgments of perceived colors using a two-alternative-forced choice task. Experiment III tested the classification of perceived colors using a color sorting task. The performance of Case I essentially fell within the normal range while the results of Case II showed some impairment in the conceptual operation of color. Analysis of the responses obtained from these experiments indicated that the color naming defects in Case I can be explained in terms of visual-verbal disconnection. However, the naming defects in Case II reflect disfunction in some other higher cortical processes coupled with visual-verbal disconnection.

本文言語English
ページ(範囲)98-126
ページ数29
ジャーナルBrain and Language
34
1
DOI
出版ステータスPublished - 1988 5
外部発表はい

ASJC Scopus subject areas

  • 言語および言語学
  • 実験心理学および認知心理学
  • 言語学および言語
  • 認知神経科学
  • 言語聴覚療法

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