Cube copying after cerebral damage

Griffiths, Kathleen M; Cook, Michael; Newcombe, Raymond

doi:10.1080/01688638808402815

Cited by 17 publications

(10 citation statements)

References 19 publications

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“…In contrast, the opposite pattern of results with cube copying reflected the fact that patients with VSN drew fewer segments and therefore tended to give up sooner than SCs. These data support the view that cube copying is of particular difficulty for patients with RH brain damage, because they have specific difficulties in re-creating the third dimension (Griffiths, Cook, & Newcombe, 1988). In fact, the present data suggest that these difficulties were restricted to patients with posterior RH brain damage, because no significant correlations were found for frontal/subcortical patients.…”

Section: Discussionsupporting

confidence: 63%

Using image analysis techniques to analyze figure-copying performance of patients with visuospatial neglect and control groups

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Donnelly

Fairhurst

et al. 2004

Behavior Research Methods, Instruments, & Computers

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Often, though not always, patients with visuospatial neglect (VSN) can be discriminated from brain-damaged patients without VSN by their performance on a cancellation task. In such a task, multiple items (usually Xs or lines) are presented on a page, and patients are asked to strike a line through each item. Patients with VSN typically fail to strike lines through (to cancel) many items printed on the left side of the page, whereas they are accurate at striking lines through items printed on the right. Recently, Donnelly et al. (1999) demonstrated that even when the performance of patients with VSN was at ceiling (i.e., all items were canceled), strategic aspects of performance still allowed patients with VSN to be discriminated from both braindamaged control groups without VSN and age-matched control groups. For example, the route taken by subjects in canceling items and the starting points for their cancellations reliably discriminated the subjects with VSN from both control groups. As part of this study, Donnelly et al. presented two cancellation tasks on a graphics tablet attached to a computer, thus demonstrating how algorithms could be written and implemented within the computer software so that the data for studying such strategic factors could be extracted automatically. They concluded that image analysis software, which allows the automatic extraction and categorization of multiple performance parameters, provides an additional tool for detecting VSN. In doing so, they revealed the limitations of traditional paper-and-pencil versions of standard clinical tests.The present paper describes an extension of this research program. Like cancellation tasks, figure copying is frequently used as a task to detect the presence of VSN (see Bradshaw & Mattingley, 1995). Copies drawn by patients with VSN can, on occasion, show omissions of significant parts of figures, although such omissions are not always made. Of course, the case of figure copying is more complex than that of cancellation; problems in figure copying can also result from constructional apraxia, as measured by drawing dysfunction. Research has shown that drawing dysfunction follows both posterior and anterior brain damage (e.g., Marshall et al., 1994), with damage to the parietal cortex being associated with both VSN and drawing dysfunction. Marshall et al. proposed that in the case of posterior (parietal) lesions, a common visuospatial mechanism is disturbed that can, depending on severity, lead to problems just in the production of recognizable drawings or VSN. To the extent that this is true, evidence of VSN might be found in the copying process, even when copies are complete.It is also the case that figure copying is a complex task that requires coordinated actions and multiple attentional fixations. Researchers have investigated the link between disorders of spatial attention (thought to be a key factor whose damage leads to VSN) and action. Patients with 347Copyright 2004 Psychonomic Society, Inc.Correspondence concerning this article should...

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Section: Discussionsupporting

confidence: 63%

Using image analysis techniques to analyze figure-copying performance of patients with visuospatial neglect and control groups

Guest

Donnelly

Fairhurst

et al. 2004

Behavior Research Methods, Instruments, & Computers

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“…11,37,38 The name and address delayed recall test appears to be a particularly sensitive measure in AD. 44,45 Both the AD and FTD groups performed well on this component, reflecting the very mild nature of the dementia in this cohort. 39 Additionally, letter-based fluency depends upon phonologic processing and category-based fluency on semantic memory.…”

Section: Resultsmentioning

confidence: 79%

A brief cognitive test battery to differentiate Alzheimer's disease and frontotemporal dementia

et al. 2000

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“…Visual reasoning: Picture Completion (WAIS-III) [79]. Executive cognitive functions: D-KEFS Colour Word Interference Test parts 3 & 4 [77], Digit Span (WAIS-III) [79] and Trail Making Test B [75]. All D-KEFS and WAIS-III scores were age-adjusted.…”

Section: Baseline Measurementsmentioning

confidence: 99%

“…score of 10 points) [78] and Block Design (WAIS-III) [79]. Verbal abstraction: Similarities (WAIS-III) [79]. Visual reasoning: Picture Completion (WAIS-III) [79].…”

Section: Baseline Measurementsmentioning

confidence: 99%

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Behavioural ratings of self-regulatory mechanisms and driving behaviour after an acquired brain injury

et al. 2014

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Cube copying after cerebral damage

Cited by 17 publications

References 19 publications

Using image analysis techniques to analyze figure-copying performance of patients with visuospatial neglect and control groups

Using image analysis techniques to analyze figure-copying performance of patients with visuospatial neglect and control groups

A brief cognitive test battery to differentiate Alzheimer's disease and frontotemporal dementia

Behavioural ratings of self-regulatory mechanisms and driving behaviour after an acquired brain injury

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