Double Dissociations between Neglect Tests: Possible Relation to Lesion Site

Schubert, Franz; Spatt, J.

doi:10.1159/000052115

Cited by 20 publications

(10 citation statements)

References 24 publications

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“…352,353 Notably, many cognitive tests are inappropriate for patients with communication disorders because of the speech and language demands of the tests' instructions, stimuli, or required responses. 358 With respect to neglect, use of multiple tests is recommended because of the variable sensitivity of neglect tests and to assist with the identification of neglect subtypes.…”

Section: Cognitive Assessmentmentioning

confidence: 99%

Comprehensive Overview of Nursing and Interdisciplinary Rehabilitation Care of the Stroke Patient

Miller¹,

Murray²,

Richards³

et al. 2010

Stroke

685

412

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Section: Cognitive Assessmentmentioning

confidence: 99%

Comprehensive Overview of Nursing and Interdisciplinary Rehabilitation Care of the Stroke Patient

Miller¹,

Murray²,

Richards³

et al. 2010

Stroke

685

412

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“…Neglect may be task-speci c (12,13). In assessing neglect, therefore, it is crucial to use several tests (14), in order to reveal different modalities of the disorder.…”

Section: Assessmentmentioning

confidence: 99%

Neglect and Anosognosia After First-Ever Stroke: Incidence and Relationship to Disability

Appelros

Karlsson²,

Seiger³

et al. 2002

Journal of Rehabilitation Medicine

149

104

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Neglect and anosognosia are serious consequences of stroke. Authors have found great variations in their incidence and their relationship to disability has been unclear. We studied the incidence of neglect and anosognosia within the scope of a population-based stroke-incidence study, and also evaluated their impact on disability. Four tests of visuo-spatial neglect, four tests of personal neglect, and an anosognosia questionnaire were used. Sixty-two patients (23%) of the study group had visuo-spatial neglect according to our definition, 21 patients (8%) had personal neglect, and 48 (17%) showed signs of anosognosia. Using a multiple logistic regression model, we found that both neglect and anosognosia influenced disability. To ascertain the true incidence of neglect and anosognosia after stroke, it is necessary to use a community-based study design, where cases treated outside the hospital are included. Some of the variability found in previous incidence studies is likely to be explained by not using such a design.

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“…23 Indeed the estimated frequency of neglect varies considerably with the type of test or coding criteria. [24][25][26][27][28][29] Computerised tasks were used to assess perceptual-premotor components of neglect [30][31][32][33][34] and the presence, severity, and evolution of anosognosia 35 36 and extinction [37][38][39][40][41] were also evaluated. If anosognosia and extinction are independent of neglect, their presence and recovery patterns might dissociate, otherwise they should coexist and recover similarly.…”

mentioning

confidence: 99%

Patterns of spontaneous recovery of neglect and associated disorders in acute right brain-damaged patients

Farnè

2004

Journal of Neurology, Neurosurgery & Psychiatry

174

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Objectives: The evolutionary pattern of spontaneous recovery from acute neglect was studied by assessing cognitive deficits and motor impairments. Detailed lesion reconstruction was also performed to correlate the presence of and recovery from neglect to neural substrates. Methods: A consecutive series of right brain-damaged (RBD) patients with and without neglect underwent weekly tests in the acute phase of the illness. The battery assessed neglect deficits, neglect-related deficits, and motor impairment. Age-matched normal subjects were also investigated to ascertain the presence of non lateralised attentional deficits. Some neglect patients were also available for later investigation during the chronic phase of their illness. Results: Partial recovery of neglect deficits was observed at the end of the acute period and during the chronic phase. Spatial attention was impaired in acute neglect patients, while non spatial attentional deficits were present in RBD patients with and without acute neglect. A strong association was found between acute neglect and fronto-parietal lesions. Similar lesions were associated with neglect persistence. In the chronic stage, neglect recovery was paralleled by improved motor control of the contralesional upper limb, thus emphasising that neglect is a negative prognostic factor in motor functional recovery. Conclusions: These findings show that spatial attention deficits partially improve during the acute phase of the disease in less than half the patients investigated. There was an improvement in left visuospatial neglect at a later, chronic stage of the disease, but this recovery was not complete. N eglect patients most frequently fail in the acute phase to respond to contralesional stimuli following right hemisphere damage, 1-3 although many patients may ignore contralesional stimuli for months or even years after the lesion. [4][5][6][7][8] Despite the theoretical relevance of neglect evolution and its practical implications for rehabilitation, little is known about the pattern of spontaneous recovery of neglect. This study addressed four main questions. First, which attentional component (for example, spatial, sustained) is specifically impaired in acute neglect? Second, which aspects of the syndrome recover spontaneously in the acute phase (,6 weeks after stroke)? Third, how many patients recover in the acute and more chronic phases (.3 months after stroke), and which characteristics differentiate these patients from those who do not recover? Fourth, what are the anatomical correlates of acute and persistent neglect?Regarding the first issue, both spatial and non spatial deficits were investigated.9-12 If disorders of sustained and divided attention play a specific role in determining neglect, then right brain-damaged (RBD) patients with neglect should be more impaired than patients without neglect in tests probing these attentional components.Second, the spontaneous recovery patterns of spatial and non spatial attention were studied for a 2 week period during the acute ph...

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Double Dissociations between Neglect Tests: Possible Relation to Lesion Site

Cited by 20 publications

References 24 publications

Comprehensive Overview of Nursing and Interdisciplinary Rehabilitation Care of the Stroke Patient

Comprehensive Overview of Nursing and Interdisciplinary Rehabilitation Care of the Stroke Patient

Neglect and Anosognosia After First-Ever Stroke: Incidence and Relationship to Disability

Patterns of spontaneous recovery of neglect and associated disorders in acute right brain-damaged patients

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