Alexia and agraphia in Japanese

Alexia and agraphia in Japanese
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日语中的 Alexia 和失写症

DOI:
10.1111/ncn3.12610
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发表时间:
2022
影响因子:
0.4
通讯作者:
Suzuki Kyoko
Suzuki Kyoko
中科院分区:
--
文献类型:
--
作者:
Mishima Mizuho;Hayashida Kazuki;Fukasaku Yoshiki;Ogata Rento;Ohsawa Kazuki;Iwai Ken;Wen Wen;Morioka Shu;Suzuki Kyoko

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在日语失读和失写症中,汉字和假名在读写中的分离表现引起了人们的关注,因为汉字和假名传达语义、正字法和音韵的方式不同。虽然汉字和假名的分离是相对的,而不是绝对的,但详细的案例研究,以及最近的神经影像学和神经生理学研究,已经揭示了汉字和假名书写系统的部分分离机制。汉字的加工主要是通过正字法-语义途径,而假名的加工主要是通过正字法-语义途径和语音途径。单纯的失读症伴左侧枕叶内侧及脾部病变,同时表现为汉字和假名失读,但在慢性期,根据代偿机制的不同,汉字和假名的失读可能仍然存在。左枕颞区对读写很重要。病灶的位置和范围稍有不同,其症状也不同:汉字失读与中梭状回(视觉词形成区;VWFA)病变有关,假名失读与VWFA后部病变有关,汉字失读与汉字失写与VWFA外侧病变有关。传统上认为左角脑回对书写很重要。然而,目前尚不清楚关键部位是角回还是与其相邻的皮质和皮质下区域。在神经退行性疾病中,阅读/写作能力的受损取决于每种疾病中神经元变性的具体分布。检查汉字和假名的读写能力可以促进对书写系统和相关障碍的理解。
Dissociated performance in the reading/writing of kanji (morphogram) and kana (phonogram) in alexia and agraphia in Japanese has attracted attention because kanji and kana differently convey semantics, orthography, and phonology. Although the dissociation between kanji and kana is relative, but not absolute, detailed case studies, in addition to recent neuroimaging and neurophysiological studies, have revealed the partially separable mechanisms of the kanji and kana writing systems. Kanji words are processed mainly, not exclusively, via the orthographic–semantic route, and kana words are processed via both orthographic–semantic and phonological routes. Pure alexia with lesions in the left medial occipital lobe and splenium shows alexia for both kanji and kana, but at the chronic stage, alexia for either kanji or kana may remain depending on the compensatory mechanism. The left occipitotemporal area is important for reading/writing. The slightly different location and extent of lesions are associated with distinct symptoms: kanji alexia with the lesion in the mid‐fusiform gyrus (visual word form area; VWFA), kana alexia with lesions posterior to VWFA, and kanji alexia with kanji agraphia with lesions lateral to VWFA. The left angular gyrus has traditionally been considered important for writing. However, it is unclear whether the crucial site is the angular gyrus or the cortical and subcortical regions adjacent to it. In neurodegenerative diseases, reading/writing abilities are differentially impaired depending on the specific distribution of neuronal degeneration in each disease. Examining the reading/writing abilities of kanji and kana can facilitate understanding of the writing system and related disorders.
DOI: --
发表时间: 1998
期刊: Neurology
影响因子: 9.9
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期刊: Rinsho shinkeigaku = Clinical neurology
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DOI: 10.1001/archneur.1980.00500510046007
发表时间: 1980
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埃克斯纳区病变与肌萎缩侧索硬化症伴痴呆的进行性失写症有关吗?
DOI: --
发表时间: 2010
影响因子: 2.8
作者:
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通讯作者: M. Kawamura
DOI: --
发表时间: 2006
期刊: Rinsho shinkeigaku = Clinical neurology
影响因子: --
作者:
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