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Cognitive neuropsychological analysis of differential reading and spelling disorder mechanisms in a patient with aphasia

Kosei Hashimoto, Akira Uno
2016 Neurocase  
The purpose of this study was to determine if differential reading and spelling mechanisms were involved in a Japanese patient with aphasia.  ...  In our case, the patient scored low on all of the administered reading tasks, suggesting that both the reading lexical and non-lexical routes were impaired.  ...  Go Mizumoto for his helpful advice and comments. Reading and Spelling  ... 
doi:10.1080/13554794.2015.1137950 pmid:26927940 fatcat:y6x23ta7mzc2lge7n5zdwdw66u

Agraphia for Kanji Resulting From a Left Posterior Middle Temporal Gyrus Lesion

Yasuhisa Sakurai, Imari Mimura, Toru Mannen
2008 Behavioural Neurology  
Kana nonword reading was also slightly impaired, but became normal by six months post-onset.  ...  kanji (Japanese morphograms) and kana (Japanese syllabograms).Results:Patient 1 first presented with pure alexia more impaired for kana after an infarction in the left middle and inferior occipital gyri  ...  Therefore, normal Japanese readers try to pronounce an unknown two-character kanji word with a typical on-reading of the constituent kanji characters.  ... 
doi:10.1155/2008/393912 pmid:18641429 pmcid:PMC5452449 fatcat:x2cdbgli7bcrrlm2jv6yzl7axq

Unexpected Reading Dissociation in a Brazilian "nisei" with Crossed Aphasia

P. Caramelli, M. A. M. P. Parente, M. L. Hosogi, M. Bois, A. R. Lecours
1994 Behavioural Neurology  
There is an increased interest in reading impairments in the Japanese language, due to its particular writing system which includes two different scripts, Kanji (logograms) and Kana (phonograms).  ...  We describe the case of a 68 year old Brazilian "nisei" (i.e. born from Japanese parents) who had knowledge of both Japanese and Portuguese.  ...  Thus, a selective impairment of one of these routes could account for a dissociation between Kana and Kanji reading.  ... 
doi:10.1155/1994/842983 fatcat:xuyygovr5nf4phey645ewhlbqu

Conversion of semantic information into phonological representation: a function in left posterior basal temporal area

Keiko Usui, Akio Ikeda, Motohiro Takayama, Masao Matsuhashi, Jun‐Ichi Yamamoto, Takeshi Satoh, Tahamina Begum, Nobuhiro Mikuni, Jun B. Takahashi, Susumu Miyamoto, Nobuo Hashimoto, Hiroshi Shibasaki
2003 Brain  
Keywords: left posterior basal temporal area; kanji versus kana reading; recognition of morphogram/syllabogram; picture naming; electric cortical stimulation Abbreviations: BTLA = basal temporal language  ...  an important function of connecting visual semantic information into phonological representation.  ...  Acknowledgements This study was supported by Grants-in-Aid for Scienti®c Research on Priority Area (C) (Advanced Brain Science) 12210012 from Japan Ministry of Education, Culture, Sports, Science and Technology  ... 
doi:10.1093/brain/awg057 pmid:12566284 fatcat:gk652wqqhvhixc2uimfz4lz3y4

A Case of Dementia with Lewy Bodies with Pure Agraphia for Kanji (Japanese Morphograms)

Hiroshi Nishida, Yuichi Hayashi, Masanori Kobayashi, Takeo Sakurai
2021 Internal medicine (Tokyo. 1992)  
A 70-year-old dextral woman was admitted to a hospital with agraphia for kanji (Japanese morphograms). She had a history of severe constipation, nightmares, and visual hallucinations.  ...  She showed poor skills in writing the kanji for looking at picture objects, [e.g. writing the Japanese word "inu" (which means dog) when she saw a drawing of a dog] or dictated words.  ...  Acknowledgement We thank Professor Jun Shinoda, Department of Neurosurgery, Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, for performing the PET imaging studies  ... 
doi:10.2169/internalmedicine.4777-20 pmid:32788534 pmcid:PMC7807109 fatcat:jrjdbhhgaza4ribzrzbqrzfy6u

A selective agraphia of Kana

K. Abe, R. Yokoyama
1994 Behavioural Neurology  
He had well-preserved ability for comprehension, reading, and writing Kanji (ideogram). Kana errors consisted of substitution with another letter while the number of target words was well preserved.  ...  We report a patient who developed selective Kana (phonogram) agraphia following an infarct in the left middle frontal gyrus known as Exner's area.  ...  Comprehension of written sentences and reading aloud were accurate. Reading of Kanji and Kana characters was at the same level of competence.  ... 
doi:10.1155/1994/790864 pmid:24487291 fatcat:v4aw6woxr5as7blsr7fbtnxlty

Naming difficulties in alexia with agraphia for kanji after a left posterior inferior temporal lesion

Y Sakurai, K Sakai, M Sakuta, M Iwata
1994 Journal of Neurology, Neurosurgery and Psychiatry  
The case is described of a patient with alexia and agraphia for kanji, and severe anomia after a subcortical haemorrhage in the left posterior inferior temporal area.  ...  It is suggested that the disconnection of association fibres between the parahippocampal, fusiform, middle, and inferior temporal gyri, especially between the parahippocampal gyrus and the other temporal  ...  We are grateful to Professor Ichiro Kanazawa, Department of Neurology, University of Tokyo School of Medicine, for his support and encouragement.  ... 
doi:10.1136/jnnp.57.5.609 pmid:8201334 pmcid:PMC1072925 fatcat:xfkcxv3jrjdipjmyqe26stwwxe

Naming difficulties in alexia with agraphia for kanji after a left posterior inferior temporal lesion

Y. Sakurai
1995 Neurocase  
The case is described of a patient with alexia and agraphia for kanji, and severe anomia after a subcortical haemorrhage in the left posterior inferior temporal area.  ...  It is suggested that the disconnection of association fibres between the parahippocampal, fusiform, middle, and inferior temporal gyri, especially between the parahippocampal gyrus and the other temporal  ...  We are grateful to Professor Ichiro Kanazawa, Department of Neurology, University of Tokyo School of Medicine, for his support and encouragement.  ... 
doi:10.1093/neucas/1.2.139-x fatcat:o5z7xfyeyvhpjb6jdxihomra7e

Pure agraphia of kanji due to thrombosis of the Labbe vein

T Yokota, S Ishiai, T Furukawa, H Tsukagoshi
1990 Journal of Neurology, Neurosurgery and Psychiatry  
Writing kanji was severely impaired without disturbed consciousness, aphasia or apraxia. On the other hand, writing kana (the Japanese syllabograms), and reading kanji and kana were almost intact.  ...  A case is described of a 56 year old Japanese male with pure agraphia of kanji (the Japanese morphograms) due to haemorrhagic infarction of the left temporal lobe caused by the rare condition of cortical  ...  The Japanese language has two different writing systems, kana and kanji, and Japanese sentences usually consist of combinations of both.  ... 
doi:10.1136/jnnp.53.4.335 pmid:2341848 pmcid:PMC1014173 fatcat:slvzs2weprcr7owlzgyj7kx7mm

Surface dyslexia in a Japanese patient with semantic dementia: evidence for similarity-based orthography-to-phonology translation

Takao Fushimi, Kenjiro Komori, Manabu Ikeda, Karalyn Patterson, Mutsuo Ijuin, Hirotaka Tanabe
2003 Neuropsychologia  
We studied the reading performance of a Japanese-speaking patient, TI, with bilateral but asymmetrical (left more than right) temporal-lobe atrophy, severe anomia, and poor word comprehension.  ...  Most Japanese kanji characters correspond to several different legitimate pronunciations in different contexts, with varying degrees of correspondence consistency.  ...  Two kinds of scripts are used in the written forms of Japanese words: phonographic kana and morphographic kanji. Kana is sub-divided into hiragana and katakana.  ... 
doi:10.1016/s0028-3932(03)00108-8 pmid:12887989 fatcat:xoeaf6te2vewddoot3ada2qrna

Pure apraxic agraphia with abnormal writing stroke sequences: report of a Japanese patient with a left superior parietal haemorrhage

M. Otsuki, Y. Soma, T. Arai, A. Otsuka, S. Tsuji
1999 Journal of Neurology, Neurosurgery and Psychiatry  
distinct from the ability of character imagery and the knowledge of the writing stroke sequence itself.  ...  A 67 year old Japanese male patient had pure agraphia after a haemorrhage in the left superior parietal lobule.  ...  There are two systems of writing in Japanese; Kanji (morphograms 12 ) and Kana (syllabograms 12 ).  ... 
doi:10.1136/jnnp.66.2.233 pmid:10071107 pmcid:PMC1736213 fatcat:tgxlwb6drfhnrdq7phrgxiyw4a

A Reading Model from the Perspective of Japanese Orthography: Connectionist Approach to the Hypothesis of Granularity and Transparency

Mutsuo Ijuin, Taeko N. Wydell
2017 Journal of Learning Disabilities  
This study presents a computer simulation model of reading in Japanese syllabic kana and morphographic kanji.  ...  The HGT was developed in order to explain the behavioral dissociation between excellent reading skills in Japanese and poor reading skills in English of an English-Japanese bilingual individual as well  ...  After 40,000 training epochs, each of 20 normal reading networks correctly pronounced all of the 360 kana and kanji characters in the training corpus.  ... 
doi:10.1177/0022219417718200 pmid:28730931 pmcid:PMC6066864 fatcat:yfoxdrbz6ndktbswkwqmxz3yuu

Amyotrophic Lateral Sclerosis and Language Dysfunction: Kana, Kanji and a Prescient Report in Japanese by Watanabe (1893)

Hiroo Ichikawa, Michael W. Miller, Mitsuru Kawamura
2011 European Neurology  
at- rophy'. b The author's name written in kanji reads Eikichi Watanabe. c -j Other descriptions are partial quotations from the text of the paper written in a mixture of (kata-) kana and kanji.  ...  Note that the Japanese text reads right to left in a -j , and top to bottom, as may also be the case.  ...  First Japanese-Language Report on Language and ALS  ... 
doi:10.1159/000324336 pmid:21372572 fatcat:lu4lqmf7zjhizphhzovchd3xea

Varieties of Alexia From Fusiform, Posterior Inferior Temporal and Posterior Occipital Gyrus Lesions

Yasuhisa Sakurai
2004 Behavioural Neurology  
Reading impairments of three alexia patients, two pure alexia and one alexia with agraphia, due to different lesions were examined quantitatively, using Kanji (Japanese morphogram) words, Kana (Japanese  ...  Kana nonword reading was impaired in all three patients, suggesting that widespread areas in the affected occipital and occipitotemporal cortices were recruited in reading Kana characters (corresponding  ...  Toru Mannen, Mitsui Memorial Hospital, for his support and encouragement.  ... 
doi:10.1155/2004/305194 pmid:15201492 pmcid:PMC5488613 fatcat:nxpzpsynvnfm7fdx6f44k6cfya

Agraphia and acalculia after a left prefrontal (F1, F2) infarction

H Tohgi, K Saitoh, S Takahashi, H Takahashi, K Utsugisawa, H Yonezawa, K Hatano, T Sasaki
1995 Journal of Neurology, Neurosurgery and Psychiatry  
Although he could add and subtract numbers, he could neither multiply nor divide them because of a difficulty in retrieving the multiplication tables and calculation procedures.  ...  These findings suggest that agraphia and acalculia may occur associated with a left prefrontal lesion, and that the retrieval of arithmetic processes is modality specific. (7 Neurol Neurosurg Psychiatry  ...  He could read aloud and comprehend perfectly single kana words written in kanji and kana and sentences composed of both kana and kanji (25/25, 100% for each).  ... 
doi:10.1136/jnnp.58.5.629 pmid:7745416 pmcid:PMC1073499 fatcat:wz52qeztkjdpzoymfpeyux5s4u
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