Two types of words, Katakana-familiar-type and Hiragana-familiar-type, were used as the word stimuli. Words and pseudowords were tachistoscopically presented in a left, a right, or bilateral visual fields. The purpose of this study was to examine the effects of visual familiarity of words on interhemispheric lexical processing. Copyright 2000 Academic Press.Įffects of visual familiarity for words on interhemispheric cooperation for lexical processing. The results suggested that processing words in an unfamiliar script requires attention, which could be left-hemisphere lateralized, while orthographically familiar kana words can be processed automatically on the basis of their word-level orthographic representations or visual word form. To examine this lateral difference during the processing of unfamiliar scripts as related to attentional laterality, a concurrent auditory shadowing task was added in Experiment 2. Experiment 1, using three stimulus durations (40, 100, 160 ms), suggested that only in the unfamiliar script condition was increased stimulus presentation time differently affected in each visual field. In two divided- visual-field experiments, three- or four-character Hiragana or Katakana words were presented in both familiar and unfamiliar scripts, to which subjects performed lexical decisions. The purpose of this study was to examine the relationship between familiarity and laterality in reading Japanese Kana words. Visual word form familiarity and attention in lateral difference during processing Japanese Kana words. The normal word superiority effect was eliminated in bot. To test processing at different levels, the same stimuli were studied across a naming task and a visual perception task. Visual processing and naming of individual letters and short words were investigated in four patients with pure alexia.
Habekost, Thomas Petersen, Anders Behrmann, Marlene From word superiority to word inferiority: Visual processing of letters and words in pure alexia
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