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This study shows that biases exist in the associations of letters with colours across individuals both with and without grapheme-colour synaesthesia. A group of grapheme-colour synaesthetes were significantly more consistent over time in their choice of colours than a group of controls. Despite this difference, there were remarkable inter-subject(More)
Semantic cognition requires a combination of semantic representations and executive control processes to direct activation in a task- and time-appropriate fashion [Jefferies, E., & Lambon Ralph, M. A. Semantic impairment in stroke aphasia versus semantic dementia: A case-series comparison. Brain, 129, 2132-2147, 2006]. We undertook a formal meta-analysis to(More)
Developing rehabilitation techniques to combat cognitive decline is a key goal of healthcare strategies aimed at promoting increased longevity and better quality of life for individuals with Alzheimer's disease (AD). In AD, problems with episodic memory and word-finding greatly affect everyday life and, as such, these symptoms provide a clear clinical(More)
Semantic cognition--semantically driven verbal and nonverbal behavior--is composed of at least two interactive principal components: conceptual representations and executive control processes that regulate and shape activation within the semantic system. Previous studies indicate that semantic dementia follows from a progressive yet specific degradation of(More)
Semantic dementia (SD) implicates the anterior temporal lobes (ATL) as a critical substrate for semantic memory. Multi-modal semantic impairment can also be a feature of post-stroke aphasia (referred to here as "semantic aphasia" or SA) where patients show impaired regulatory control accompanied by lesions to the frontal and/or temporo-parietal cortices,(More)
INTRODUCTION This study investigated the validity of two brief cognitive tests (Memory Alteration Test [M@T] and Test Your Memory [TYM] test) for identifying people with aMCI in the community. METHODS Older people were invited to participate by their general practitioner practice. Eligible participants were assessed for aMCI using an operationalized(More)
Anomia therapy typically aims to improve patients' communication ability through targeted practice in naming a set of particular items. For such interventions to be of maximum benefit, the use of trained (or relearned) vocabulary must generalise from the therapy setting into novel situations. We investigated relearning in three patients with semantic(More)
  • Bocchetta M Galluzzi, Kehoe Pg, Aguera E, Bernabei R Bullock, Ceccaldi M, Dartigues Jf +54 others
  • 2015
Vocabulary relearning in semantic dementia: Positive and negative consequences of increasing variability in the learning experience. Group). Dependence in Alzheimer's disease and service use costs,quality of life, and caregiver burden: The DADE study. The relationship between changes in quality of life outcomes and progression of Alzheimer's disease:(More)
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