Anomia: a doubly typical signature of semantic dementia.

Neuropsychology Anomia as a Marker of Distinct Semantic Memory Impairments in Alzheimer's Disease and Semantic Dementia

No right to speak? The relationship between object naming and semantic impairment: neuropsychological evidence and a computational model.

The processes required for object naming were addressed in a study of patients with semantic dementia (a selective decline of semantic memory resulting from progressive temporal lobe atrophy) and in a computational model of single-word production. Although all patients with semantic dementia are impaired in both single-word production and comprehension, previous reports had indicated two differ...

[Non-pharmacological therapies of language deficits in semantic dementia].

Semantic dementia (SD) is a neurodegenerative condition characterised by a progressive disorder of semantic processing, word comprehension and anomia. This literature review reports behavioural studies about language therapies for SD. More precisely, the review presents the cognitive, participative and alternative/augmentative interventions reported in the literature to improve language perform...

Loss of high-level perceptual knowledge of object structure in DAT.

Visual object recognition and naming deficits in patients with dementia of the Alzheimer type (DAT) have typically been attributed to deficits in semantic processing. On a visual object naming test, a group of 10 mild, early stage DAT patients (mean MMSE=23.8) were found to suffer from anomia, compared to a group of 10 age-matched control participants. DAT naming errors were typically within ca...

Semantic memory is impaired in patients with unilateral anterior temporal lobe resection for temporal lobe epilepsy.

Contemporary clinical and basic neuroscience studies have increasingly implicated the anterior temporal lobe regions, bilaterally, in the formation of coherent concepts. Mounting convergent evidence for the importance of the anterior temporal lobe in semantic memory is found in patients with bilateral anterior temporal lobe damage (e.g. semantic dementia), functional neuroimaging and repetitive...