The Relationship of Agraphia to the Severity of Dementia in Alzheimer's Disease

Writing Impairments in Japanese Patients with Mild Cognitive Impairment and with Mild Alzheimer's Disease

“…The mild AD patients showed writing impairments in the general scores for picture story writing, as a previous study found [ 8 ]. The majority of previous studies show a decreased amount of information [ 6 , 9 , 10 , 11 , 12 , 13 ] and more lexical errors among mild AD patients compared with controls [ 6 , 8 , 11 , 15 ], consistent with our findings. In the present study, the number of Kana errors was much higher than the number of Kanji errors, contrary to the results of the word writing to dictation tasks.…”

Writing Impairments in Japanese Patients with Mild Cognitive Impairment and with Mild Alzheimer's Disease

“…The mild AD patients showed writing impairments in the general scores for picture story writing, as a previous study found [ 8 ]. The majority of previous studies show a decreased amount of information [ 6 , 9 , 10 , 11 , 12 , 13 ] and more lexical errors among mild AD patients compared with controls [ 6 , 8 , 11 , 15 ], consistent with our findings. In the present study, the number of Kana errors was much higher than the number of Kanji errors, contrary to the results of the word writing to dictation tasks.…”

A correlational study between signature, writing abilities and decision-making capacity among people with initial cognitive impairment

“…Spatial orientation, font size, homogeneity and semantic relevancy seem not to be related to the cognitive level. These results only partially agree with Horner and colleagues' data [23]: they retain that the severity of the disease positively correlates with writing impairment. This discrepancy may be due to the nature of our variables: while the number of words, the number of readable words and errors were counted one by one and are therefore more precise measurements, spatial indexes and semantic relevancy were assigned to the whole text and are therefore probably less sensitive indeces.…”

Language impairment in the moderate stage of dementia due to Alzheimer's disease

“…The patients with AD had difficulties with written production. This low performance was expected among patients with moderate AD, since previous studies have shown writing impairments early on in the disease 32 . The involvement of semantic and lexical-semantic systems in these tasks may explain the performance seen in these cases, although these difficulties might also be related to impairments in the lexical-orthographic buffer 33 .…”

Writing Impairments in Japanese Patients with Mild Cognitive Impairment and with Mild Alzheimer's Disease

“…The mild AD patients showed writing impairments in the general scores for picture story writing, as a previous study found [ 8 ]. The majority of previous studies show a decreased amount of information [ 6 , 9 , 10 , 11 , 12 , 13 ] and more lexical errors among mild AD patients compared with controls [ 6 , 8 , 11 , 15 ], consistent with our findings. In the present study, the number of Kana errors was much higher than the number of Kanji errors, contrary to the results of the word writing to dictation tasks.…”

A correlational study between signature, writing abilities and decision-making capacity among people with initial cognitive impairment

“…Spatial orientation, font size, homogeneity and semantic relevancy seem not to be related to the cognitive level. These results only partially agree with Horner and colleagues' data [23]: they retain that the severity of the disease positively correlates with writing impairment. This discrepancy may be due to the nature of our variables: while the number of words, the number of readable words and errors were counted one by one and are therefore more precise measurements, spatial indexes and semantic relevancy were assigned to the whole text and are therefore probably less sensitive indeces.…”

Language impairment in the moderate stage of dementia due to Alzheimer's disease

“…The patients with AD had difficulties with written production. This low performance was expected among patients with moderate AD, since previous studies have shown writing impairments early on in the disease 32 . The involvement of semantic and lexical-semantic systems in these tasks may explain the performance seen in these cases, although these difficulties might also be related to impairments in the lexical-orthographic buffer 33 .…”

Writing Impairments in Japanese Patients with Mild Cognitive Impairment and with Mild Alzheimer's Disease

“…The mild AD patients showed writing impairments in the general scores for picture story writing, as a previous study found [ 8 ]. The majority of previous studies show a decreased amount of information [ 6 , 9 , 10 , 11 , 12 , 13 ] and more lexical errors among mild AD patients compared with controls [ 6 , 8 , 11 , 15 ], consistent with our findings. In the present study, the number of Kana errors was much higher than the number of Kanji errors, contrary to the results of the word writing to dictation tasks.…”

A correlational study between signature, writing abilities and decision-making capacity among people with initial cognitive impairment

“…Spatial orientation, font size, homogeneity and semantic relevancy seem not to be related to the cognitive level. These results only partially agree with Horner and colleagues' data [23]: they retain that the severity of the disease positively correlates with writing impairment. This discrepancy may be due to the nature of our variables: while the number of words, the number of readable words and errors were counted one by one and are therefore more precise measurements, spatial indexes and semantic relevancy were assigned to the whole text and are therefore probably less sensitive indeces.…”

Language impairment in the moderate stage of dementia due to Alzheimer's disease

“…The patients with AD had difficulties with written production. This low performance was expected among patients with moderate AD, since previous studies have shown writing impairments early on in the disease 32 . The involvement of semantic and lexical-semantic systems in these tasks may explain the performance seen in these cases, although these difficulties might also be related to impairments in the lexical-orthographic buffer 33 .…”