Assessment of clients with visual spatial disorders: a pilot study

Verlander, D. F.; Hayes, Allison; McInnes, John; Liddle, R.J.; Liddle, G.W.; Clarke, Gayle; Clark, Michael; Russell, M. H. A.; Ferguson, W.; Walsh, Peter G.

doi:10.1076/vimr.2.3.129.4422

Cited by 21 publications

(40 citation statements)

References 10 publications

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“…A lateral deviation of the walking trajectory is often observed in stroke patients with USN and bumping into objects or doorposts during locomotion is considered a major problem in these patients [9]. Because they are key aspects to navigate safely through the environment it is important to investigate heading control and straight-line walking in neglect patients.…”

Section: Introductionmentioning

confidence: 99%

Walking trajectory in neglect patients

Huitema¹,

Brouwer

Hof

et al. 2006

Gait & Posture

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A lateral deviation of the walking trajectory is often observed in stroke patients with unilateral spatial neglect. However, existing research appears to be contradictory regarding the direction of this deviation. The aim of the present study was to gain more insight into the walking trajectory of neglect patients. Twelve right hemisphere stroke patients (six neglect, six no neglect), eight left hemisphere stroke patients (none neglect) and 10 healthy control subjects were instructed to walk towards a target while a two-dimensional ultrasonic positioning system recorded their walking trajectory. Patients' recovery of walking ability was assessed and they were tested for the presence of neglect. Neglect patients showed a larger lateral deviation in their walking trajectory compared to stroke patients without neglect or controls. Neglect patients with good walking ability showed a deviation to the contralesional side. Neglect patients with limited walking ability showed a deviation to the ipsilesional side. Within the neglect group we found no relation between the severity of neglect and lateral deviation. Differences in walking ability may account for the contradictory results between studies regarding the lateral deviation in neglect patients' walking trajectory. We suggest that when a neglect patient's walking ability is limited, walking towards a target becomes a dual task: heading control and walking. A limited walking ability will cause a higher task priority of walking compared to heading control. This shift in task priority may be causing the change in walking trajectory deviation.

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Section: Introductionmentioning

confidence: 99%

Walking trajectory in neglect patients

Huitema¹,

Brouwer

Hof

et al. 2006

Gait & Posture

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show abstract

“…Progress has been made in the development of treatments for a wide variety of visual deficits and losses that accompany TBI. Among the techniques currently used to address functional deficits related to various visual dysfunctions and losses are prisms [36], vision therapy [37][38][39][40], driving simulators [41][42], visuospatial training [43], and techniques to improve scanning and perception [39,44], as well as brain repair (plasticity), prostheses, and medications [44]. Techniques for addressing severe visual impairment are well documented throughout VA Blind Rehabilitation Services, and efforts are underway to adapt these to the polytrauma population both at local and national levels.…”

Section: Rehabilitative Carementioning

confidence: 99%

Eye and visual function in traumatic brain injury

Cockerham¹,

Goodrich²,

Weichel³

et al. 2009

JRRD

144

107

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Abstract-Combat blast is an important cause of traumatic brain injury (TBI) in the Department of Veterans Affairs polytrauma population, whereas common causes of TBI in the civilian sector include motor vehicle accidents and falls. Known visual consequences of civilian TBI include compromised visual acuity, visual fields, and oculomotor function. The visual consequences of TBI related to blast remain largely unknown. Blast injury may include open globe (eye) injury, which is usually detected and managed early in the rehabilitation journey. The incidence, locations, and types of ocular damage in eyes without open globe injury after exposure to powerful blast have not been systematically studied. Initial reports and preliminary data suggest that binocular function, visual fields, and other aspects of visual function may be impaired after blast-related TBI, despite relatively normal visual acuity. Damage to the ocular tissues may occur from blunt trauma without rupture or penetration (closed globe injury). Possible areas for research are development of common taxonomy and assessment tools across services, surgical management, and outcomes for blast-related eye injury; the incidence, locations, and natural history of closed globe injury; binocular and visual function impairment; quality of life in affected servicemembers; pharmacological and visual therapies; and practice patterns for screening, management, and rehabilitation.

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“…A pilot study was conducted which validated the use of the Liddle Scanning Device [3]. The study indicated that bthe use of single stimuli targets in visual field analysers or visual charts alone would fail to demonstrate the presence of unilateral neglect in the absence of field lossQ.…”

Section: Researchmentioning

confidence: 99%

Incidence of neurological vision impairment in patients who suffer from an acquired brain injury

Clarke

2005

International Congress Series

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Assessment of clients with visual spatial disorders: a pilot study

Cited by 21 publications

References 10 publications

Walking trajectory in neglect patients

Walking trajectory in neglect patients

Eye and visual function in traumatic brain injury

Incidence of neurological vision impairment in patients who suffer from an acquired brain injury

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