A case of semantic dementia

The undiscovered syndrome: Macdonald Critchley’s case of semantic dementia

Semantic dementia is a unique clinicopathological syndrome in the frontotemporal lobar degeneration spectrum. It is characterized by progressive and relatively selective impairment of semantic memory, associated with asymmetric antero-inferior temporal lobe atrophy. Although the syndrome became widely recognized only in the 1980s, descriptions of cases with typical features of semantic dementia...

Medical Risk factors for dementia; A case-control study

Introduction: Dementia, the fifth cause of death in older adults with the most significant financial, social and caring burden on health systems across the world. Aim: to determine the most common medical risk factors for dementia in the retired population. Methods: A case-control methodology was utilized for this study, within which 180 established dementia patients compared to 371 controls ...

Assessment of Aphasia in Iranian Patients Suffering From Frontotemporal Dementia

Objective Frontotemporal dementia (FTD) is an uncommon type of dementia. The hallmark feature of FTD is the presentation with aphasia, or behavioral changes which are varies in different subtypes of the disease. We propose a quantitative aphasia test as an additive diagnostic tool for differentiation of FTD subtypes. Method: The study was performed on 20 patients, who were referred to dementia...

Comparison of visual evoked potential changes in patients with alzheimer, vascular dementia and minimal cognitive Impairment with healthy people: a case-control study

Background: Alzheimer dementia as the most common cause of dementia is a chronic, progressive, irreversible and incurable disease. The second most common cause of dementia after Alzheimer is vascular dementia. One of the systems involved in dementia is the visuospatial system and visual evoked potential (VEP) can be one of the diagnostic methods for this disease. Therefore, the present study ai...

Relearning and retention of verbal labels in a case of semantic dementia

Preserved musical semantic memory in semantic dementia.

OBJECTIVE To understand the scope of semantic impairment in semantic dementia. DESIGN Case study. SETTING Academic medical center. PATIENT A man with semantic dementia, as demonstrated by clinical, neuropsychological, and imaging studies. MAIN OUTCOME MEASURES Music performance and magnetic resonance imaging results. RESULTS Despite profoundly impaired semantic memory for words and ob...