The format of conceptual representations disrupted in semantic dementia: a position paper

G Gainotti - Cortex, 2012 - Elsevier
To account for the selective, progressive and multimodal conceptual disruption observed in
semantic dementia (SD), Patterson et al., 2007 have proposed that the neural network for …

At the edge of semantic space: the breakdown of coherent concepts in semantic dementia is constrained by typicality and severity but not modality

EJ Mayberry, K Sage… - Journal of Cognitive …, 2011 - direct.mit.edu
Hub-and-spoke models of semantic representation suggest that coherent concepts are
formed from the integration of multiple, modality-specific information sources with additional …

The degraded concept representation system in semantic dementia: damage to pan-modal hub, then visual spoke

P Hoffman, RW Jones, MAL Ralph - Brain, 2012 - academic.oup.com
The core clinical feature of semantic dementia is a progressive yet selective degradation of
conceptual knowledge. Understanding the cognitive and neuroanatomical basis for this …

Generalization and differentiation in semantic memory: insights from semantic dementia

MA Lambon Ralph, K Patterson - … of the New York Academy of …, 2008 - Wiley Online Library
According to many theories, semantic representations reflect the parallel activation of
information coded across a distributed set of modality‐specific association brain cortices …

Why are the right and left hemisphere conceptual representations different?

G Gainotti - Behavioural neurology, 2014 - Wiley Online Library
The present survey develops a previous position paper, in which I suggested that the
multimodal semantic impairment observed in advanced stages of semantic dementia is due …

[HTML][HTML] Semantic dementia and the left and right temporal lobes

JS Snowden, JM Harris, JC Thompson, C Kobylecki… - Cortex, 2018 - Elsevier
Semantic dementia, a circumscribed disorder of semantic knowledge, provides a unique
model for understanding the neural basis for semantic representation. The study addressed …

Reverse concreteness effects are not a typical feature of semantic dementia: evidence for the hub-and-spoke model of conceptual representation

P Hoffman, MA Lambon Ralph - Cerebral Cortex, 2011 - academic.oup.com
The role of anterior temporal lobes (ATLs) in semantic processing is controversial. One
theory, influenced by semantic dementia (SD) patients, is that this region is a pan-modal hub …

The neural basis of semantic cognition: converging evidence from neuropsychology, neuroimaging and TMS

E Jefferies - Cortex, 2013 - Elsevier
Recent studies suggest that a complex, distributed neural network underpins semantic
cognition. This article reviews our contribution to this emerging picture and traces the …

Unpicking the semantic impairment in Alzheimer's disease: qualitative changes with disease severity

F Corbett, E Jefferies, A Burns… - Behavioural …, 2012 - content.iospress.com
Despite a vast literature examining semantic impairment in Alzheimer's disease (AD),
consensus regarding the nature of the deficit remains elusive. We re-considered this issue in …

Longitudinal studies of semantic dementia: the relationship between structural and functional changes over time

P Bright, HE Moss, EA Stamatakis, LK Tyler - Neuropsychologia, 2008 - Elsevier
The pattern of brain atrophy in semantic dementia and its associated cognitive effects have
attracted a considerable body of research, but the nature of core impairments remains …