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Clinical features of behavioral symptoms in patients with semantic dementia: Does semantic dementia cause autistic traits?

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  • معلومة اضافية
    • المصدر:
      Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: San Francisco, CA : Public Library of Science
    • الموضوع:
      Alzheimer Disease/*pathology ; Frontotemporal Dementia/*pathology; Aged ; Alzheimer Disease/complications ; Alzheimer Disease/psychology ; Autism Spectrum Disorder/complications ; Autism Spectrum Disorder/diagnosis ; Female ; Frontotemporal Dementia/complications ; Frontotemporal Dementia/psychology ; Humans ; Male ; Middle Aged ; Neuropsychological Tests ; Severity of Illness Index ; Stereotyped Behavior
    • نبذة مختصرة :
      Competing Interests: The authors have declared that no competing interests exist.
      Objective: To investigate the behavioral characteristics of semantic dementia (SD) using an instrument originally developed for patients with autism spectrum disorder.
      Methods: The behavioral symptoms of 20 patients with SD and 20 patients with Alzheimer's disease (AD) in both the preclinical state and the dementia state were evaluated using the Pervasive Developmental Disorders Autism Society Japan Rating Scale (PARS).
      Results: The SD group showed high prevalence in four behaviors related to stereotypy and social impairment: eating very few food items, selfishness, difficulty in recognizing others' feeling and thoughts, and interpreting language literally. Scores on the PARS short version, which is sensitive for diagnosis of autism spectrum disorder, were significantly higher in the dementia state than in the preclinical state in both the SD (11.5 ± 6.0 and 1.7 ± 2.5, respectively; t (19) = 6.7, p < 0.001) and AD (6.9 ± 4.6 and 1.7 ± 2.0, respectively; t (19) = 5.1, p < 0.001) groups. PARS short version scores after dementia onset increased in both the SD and AD groups, although the increase was significantly larger in the SD group (F = 5.6, p = 0.023). Additionally, a significantly higher rate of patients exceeded the cutoff score for autism diagnosis in the dementia state in the SD group (75%) than in the AD group (40%; χ2 = 5.0, p = 0.025). PARS scores in the dementia state were significantly correlated with illness duration (r = 0.46, p = 0.04) and Mini-Mental State Examination scores (r = -0.75, p < 0.001) in the SD group only.
      Conclusions: Although SD and autism spectrum disorder are etiologically distinct diseases, patients with semantic dementia behave like those with autism spectrum disorder. Our findings suggest the symptomatic similarity of the two disorders.
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    • الموضوع:
      Date Created: 20210218 Date Completed: 20210823 Latest Revision: 20210823
    • الموضوع:
      20250114
    • الرقم المعرف:
      PMC7891790
    • الرقم المعرف:
      10.1371/journal.pone.0247184
    • الرقم المعرف:
      33600474