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Hits 61 – 80 of 234

61
Investigating the language, cognition and self-monitoring abilities of speakers with jargon output
Purcell, R; Lambon Ralph, Matthew; Sage, K. - : Informa UK Limited, 2019. : Aphasiology, 2019
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62
Assessing and mapping language, attention and executive multidimensional deficits in stroke aphasia
Schumacher, Rahel; Halai, Ajay D; Lambon Ralph, Matthew A. - : Oxford University Press, 2019
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63
Unveiling the dynamic interplay between the hub- and spoke-components of the brain's semantic system and its impact on human behaviour
Chiou, Rocco; Lambon Ralph, Matthew A.. - : Academic Press, 2019
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64
Exploring distinct default mode and semantic networks using a systematic ICA approach
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65
The contribution of executive control to semantic cognition : Convergent evidence from semantic aphasia and executive dysfunction
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66
Shared processes resolve competition within and between episodic and semantic memory: Evidence from patients with LIFG lesions
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67
Unification of behavioural, computational and neural accounts of word production errors in post-stroke aphasia
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68
Noun and verb processing in aphasia: Behavioural profiles and neural correlates
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69
Relating resting-state hemodynamic changes to the variable language profiles in post-stroke aphasia
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70
Predicting the pattern and severity of chronic post-stroke language deficits from functionally-partitioned structural lesions
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71
Shared processes resolve competition within and between episodic and semantic memory: Evidence from patients with LIFG lesions
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72
The Roles of Left Versus Right Anterior Temporal Lobes in Semantic Memory: A Neuropsychological Comparison of Postsurgical Temporal Lobe Epilepsy Patients
Rice, Grace E; Caswell, Helen; Moore, Perry. - : Oxford University Press, 2018
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73
The contribution of executive control to semantic cognition: Convergent evidence from semantic aphasia and executive dysfunction
Abstract: Semantic cognition, as described by the controlled semantic cognition (CSC) framework (Rogers et al., 2015, Neuropsychologia, 76, 220), involves two key components: activation of coherent, generalizable concepts within a heteromodal ‘hub’ in combination with modality-specific features (spokes), and a constraining mechanism that manipulates and gates this knowledge to generate time- and task-appropriate behaviour. Executive–semantic goal representations, largely supported by executive regions such as frontal and parietal cortex, are thought to allow the generation of non-dominant aspects of knowledge when these are appropriate for the task or context. Semantic aphasia (SA) patients have executive–semantic deficits, and these are correlated with general executive impairment. If the CSC proposal is correct, patients with executive impairment should not only exhibit impaired semantic cognition, but should also show characteristics that align with those observed in SA. This possibility remains largely untested, as patients selected on the basis that they show executive impairment (i.e., with ‘dysexecutive syndrome’) have not been extensively tested on tasks tapping semantic control and have not been previously compared with SA cases. We explored conceptual processing in 12 patients showing symptoms consistent with dysexecutive syndrome (DYS) and 24 SA patients, using a range of multimodal semantic assessments which manipulated control demands. Patients with executive impairments, despite not being selected to show semantic impairments, nevertheless showed parallel patterns to SA cases. They showed strong effects of distractor strength, cues and miscues, and probe–target distance, plus minimal effects of word frequency on comprehension (unlike semantic dementia patients with degradation of conceptual knowledge). This supports a component process account of semantic cognition in which retrieval is shaped by control processes, and confirms that deficits in SA patients reflect difficulty controlling semantic retrieval.
URL: https://doi.org/10.1111/jnp.12142
http://epubs.surrey.ac.uk/845816/1/Task-based%20and%20resting-state%20fMRI%20reveal%20compensatory%20network%20changes%20following%20damage%20to%20left%20inferior%20frontal%20gyrus.pdf
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74
Targeted memory reactivation of newly learned words during sleep triggers REM-mediated integration of new memories and existing knowledge.
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75
Triangulation of language-cognitive impairments, naming errors and their neural bases post-stroke
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76
The behavioural patterns and neural correlates of concrete and abstract verb processing in aphasia: A novel verb semantic battery
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77
Seeing the Meaning: Top–Down Effects on Letter Identification
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78
A unified model of human semantic knowledge and its disorders
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79
Task-based and resting-state fMRI reveal compensatory network changes following damage to left inferior frontal gyrus
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80
The anterior temporal cortex is a primary semantic source of top-down influences on object recognition
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