Disorders of semantic memory.

Re-acquisition of person knowledge in semantic memory disorders.

Semantic memory impairment, from either non-progressive or neurodegenerative brain injury, has a significant impact on day-to-day functioning. Few studies have investigated the best methods for supporting relearning of new semantic knowledge in semantically-impaired individuals, even though these investigations also provide an opportunity to explore how the hippocampal and temporal neocortical ...

Anatomical functional and cognitive determinants of semantic memory disorders.

Contemporary debates on the 'semantic memory' construct revolve around three main topics: (1) the functional and anatomical relationships between episodic and semantic memory; (2) the format of semantic representations and their relationships with the underlying sensory-motor processes; (3) the categorical organization of semantic memory. The aim of the present review is to demonstrate that the...

Semantic Dementia Shows both Storage and Access Disorders of Semantic Memory

OBJECTIVE Previous studies have shown that some patients with semantic dementia (SD) have memory storage disorders, while others have access disorders. Here, we report three SD cases with both disorders. METHODS Ten pictures and ten words were prepared as visual stimuli to determine if the patients could correctly answer names and select pictures after hearing the names of items (Card Present...

Semantic relevance and semantic disorders.

Semantic features are of different importance in concept representation. The concept elephant may be more easily identified from the feature than from the feature . We propose a new model of semantic memory to measure the relevance of semantic features for a concept and use this model to investigate the controversial issue of category specificity. Category-specific patients h...

Semantic Memory