Recovery of oculo-motor bias in neglect patients after prism adaptation

Angeli, Valentina; Benassi, Mariagrazia; Làdavas, Elisabetta

doi:10.1016/j.neuropsychologia.2004.01.007

Cited by 96 publications

(58 citation statements)

References 45 publications

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“…The post-PA effect measured by index finger pointing was comparable. [2][3][4] Furthermore, the absence of effect was not related to the presence of hemianopia. 4 One important point was that we showed partial improvement with repetition of tests, independent of the quality of prisms, which was more evident at later sessions.…”

Section: Discussionmentioning

confidence: 88%

“…Positive effect has also been reported on single word and nonword reading. 2,3 However, in a more recent report, 4 authors did not find definite efficacy when patients had hemianopia in addition to SN.…”

Section: Discussionmentioning

confidence: 94%

“…Prism adaptation (PA) to a rightward optical deviation could reduce SN manifestations and especially improve performance in article and pencil tests 1,2 and errors in reading texts, 1 single words, 2,3 and nonwords. 3 However, the efficacy of PA has been discussed recently. 4,5 We re-evaluated the efficacy of PA on reading and other clinical tests by comparing the effect of deviating and neutral prisms in the same patients.…”

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confidence: 99%

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Ineffectiveness of Prism Adaptation on Spatial Neglect Signs

Rousseaux

Bernati

Saj̈

et al. 2006

Stroke

100

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Background and Purpose-To evaluate the effect of prism adaptation (PA) on spatial neglect signs. Methods-Ten patients (hemianopia in 6) and 8 control subjects were included. Tasks were reading single words, nonwords, and a text, bell cancellation, line bisection, and scene drawing, before and after adaptation, with either deviating or neutral prisms. Results-Errors were more frequent in patients but without any specific effect of PA. We found partial improvement at the late sessions, independent of prisms. Conclusions-We did not confirm the efficacy of PA on spatial neglect. (Stroke. 2006;37:542-543.)

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 94%

mentioning

confidence: 99%

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Ineffectiveness of Prism Adaptation on Spatial Neglect Signs

Rousseaux

Bernati

Saj̈

et al. 2006

Stroke

100

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“…This method is easy in administration, and due to the presence of adaptation, it is easy to predict the effectiveness of the treatment from the early sessions [22]. Adaptation is the ability of the patient to adapt to the new visual condition wearing prismatic lenses.…”

Section: International Journal Of Physical Medicine and Rehabilitationmentioning

confidence: 99%

Efficacy of Prisms in Neglect Treatment: A Randomized Single Blind Study

Mancuso¹,

Capitani²

2016

Int J Phys Med Rehabil

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Objective: Unilateral Spatial Neglect (USN) commonly occurs after lesions in the right hemisphere. This complex syndrome can be defined as a failure to report, respond, or orient to contralateral stimuli. Patients show several symptoms in everyday life, such as eating only on the right side of the plate, or forgetting to look left before crossing the street.Among the different bottom-up treatments, prisms adaptation has found considerable application, producing a high number of scientific papers, even if these are not always consistent in their conclusions.The aim of this randomized single blind study was to verify the efficacy of prisms in improving neglect syndrome when compared to neutral lenses in a group of stroke in patients with neglect.Methods: All patients were randomized into two groups: Experimental Group (EG) and Control Group (CG). The EG was treated with pointing exercises wearing prismatic lenses producing a deviation of the visual field of 10° to the right, while the CG was treated with pointing exercises wearing neutral lenses that did not produce any deviation of the visual field. Both groups were treated for two weeks.We compared with Analysis of Variance the two groups of stroke patients at two different treatment times, at the enrollment time (T0) and after two weeks (T1). Results:We have compared the EG and CG at T0 and T1 time: both groups show a significant improvement in outcome measure. The analysis between groups highlights that this effect can be related to the time rather than to the group of treatment. Conclusion:According to our results we can conclude that pointing with no visible arm is useful in neglect treatment and that prisms produce some further benefits even if the low number of subjects enrolled is still insufficient to give clear evidence in the use of prisms.

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“…In the present review we will describe the studies characterizing four of these approaches that have emerged since approximately a decade: prism adaptation (PA), virtual reality (VR) training, noninvasive brain stimulation (NIBS), and pharmacological therapies. Table S1 in Supplementary Material gives an overview of these studies (McIntosh et al, 2002, Angeli et al, 2004, Dijkerman et al, 2004, Jacquin-Courtois et al, 2008, Nijboer et al, 2011, Bauer et al, 2012, Luauté et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

Novel insights in rehabilitation of neglect

2014

Frontiers Research Topics

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Visuospatial neglect due to right hemisphere damage, usually a stroke, is a major cause of disability, impairing the ability to perform a whole range of everyday life activities. Conventional and long-established methods for the rehabilitation of neglect like visual scanning training, optokinetic stimulation, or limb activation training have produced positive results, with varying degrees of generalization to (un)trained tasks, lasting from several minutes up to various months after training. Nevertheless, some promising novel approaches to the remediation of left visuospatial neglect have emerged in the last decade.These new therapy methods can be broadly classified into four categories. First, non-invasive brain stimulation techniques by means of transcranial magnetic stimulation (TMS) or transcranial direct current stimulation (tDCS), after a period of mainly diagnostic utilization, are increasingly applied as neurorehabilitative tools. Second, two classes of drugs, dopaminergic and noradrenergic, have been investigated for their potential effectiveness in rehabilitating neglect. Third, prism adaptation treatment has been shown to improve several neglect symptoms consistently, sometimes during longer periods of time. Finally, virtual reality technologies hold new opportunities for the development of effective training techniques for neglect. They provide realistic, rich, and highly controllable training environments. In this paper the degree of effectiveness and the evidence gathered to support the therapeutic claims of these new approaches is reviewed and discussed. The conclusion is that for all these approaches there still is insufficient unbiased evidence to support their effectiveness. Further neglect rehabilitation research should focus on the maintenance of therapy results over time, on a more functional evaluation of treatment effects, on the design and execution of true replication studies and on the exploration of optimal combinations of treatments.

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Recovery of oculo-motor bias in neglect patients after prism adaptation

Cited by 96 publications

References 45 publications

Ineffectiveness of Prism Adaptation on Spatial Neglect Signs

Ineffectiveness of Prism Adaptation on Spatial Neglect Signs

Efficacy of Prisms in Neglect Treatment: A Randomized Single Blind Study

Novel insights in rehabilitation of neglect

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