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首页> 外文期刊>Journal of vision >Reading words and seeing style: The neuropsychology of word, font and handwriting perception
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Reading words and seeing style: The neuropsychology of word, font and handwriting perception

机译：阅读单词和看风格：单词，字体和笔迹感知的神经心理学

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Reading is considered to be primarily a function of the left hemisphere. However, it is also possible to process text for attributes other than the identity of words and letters, such as the style of font or handwriting. Older anecdotal observations have suggested that processing of handwriting style may involve the right hemisphere. There is also some fMRI evidence of sensitivity to style in either right or left visual word form areas in the fusiform gyri. We created a test that, using the same set of text stimuli, required subjects first to sort text on the basis of word identity and second to sort text on the basis of script style. We presented two versions, one using various computer fonts and the other using the handwriting of different individuals, and measured accuracy and completion times. For testing we selected four subjects with unilateral fusiform lesions and problems with object processing who had been well characterized by neuropsychological testing and structural and/or functional MRI. We found that one alexic subject with left fusiform damage performed well when sorting by script style but had markedly prolonged reading times when sorting by word identity. In contrast, two prosopagnosic subjects with right lateral fusiform damage that eliminated the fusiform face area and likely the right visual word form area were impaired in sorting for script style, but performed better when sorting for word identity. Another prosopagnosic subject with right medial occipitotemporal damage sparing areas in the lateral fusiform gyrus performed well on both tasks. The contrast in the performance of patients with right versus left fusiform damage suggests an important distinction in hemispheric processing that reflects not the type of stimulus but the nature of the processing operations required.
机译：阅读被认为主要是左半球的功能。但是，也可以为文字和字母身份以外的属性处理文本，例如字体或笔迹。较早的传闻表明，手写风格的处理可能涉及右半球。在梭状回中的右或左视觉词形式区域中，也有一些fMRI证据表明对样式敏感。我们创建了一个测试，该测试使用相同的一组文本刺激，要求受试者首先根据单词标识对文本进行排序，然后再根据脚本样式对文本进行排序。我们提供了两个版本，一个使用各种计算机字体，另一个使用不同个人的笔迹，并测量了准确性和完成时间。为了进行测试，我们选择了四名具有单侧梭形病变和对象处理问题的受试者，这些受试者已通过神经心理学测试以及结构和/或功能性MRI进行了很好的表征。我们发现，一个按字形排序的左旋梭形损伤的词法主体在按单词样式排序时表现良好，但在按单词身份排序时阅读时间明显延长。相比之下，两个具有右侧侧梭形损伤的预后障碍受试者消除了梭形面部区域和可能的右侧视觉词形区域，但在按脚本样式进行排序时受到了损害，但在对单词标识进行排序时表现更好。在外侧梭形回中有右侧枕颞颞部损伤保留区域的另一位绝经后受试者在两项任务中均表现良好。具有右梭形损伤和左梭形损伤的患者的性能对比表明，半球加工过程中的一个重要区别不是反映刺激的类型而是反映所需加工操作的性质。

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