View clinical trials related to Perceptual Disorders.
Filter by:The purpose of this study is to investigate the effect of virtual prism adaptation therapy on hemispatial neglect in chronic stroke patients. This study is the randomized, double-blind, sham-controlled, cross-over design. Total 10 patients will be allocated randomly to either real virtual prism adaptation therapy or sham therapy with the wash-out period of more than 2 weeks. Two sessions (20min/session) per day, for 5days (total 10 sessions) will be provided. Behavioral outcomes will be measured before and after completing a total of 10 sessions therapy.
Information regarding the likely progress of post-stroke symptoms is vitally important to stroke survivors to allow them to plan for the future and to adjust to life after stroke. Moreover, the prevalence of morbidity secondary to stroke is of central importance to Health Professionals to understand the prognosis of the disease in the patients under their care. Additionally, it will also allow commissioners of care, planners and third sector organisations to adapt to and answer the needs of a post-stroke population. Currently, the data collected by national audit programmes are concentrated on what can be termed 'process or process of care' data. The utility of these data are in the ability to audit the care received by stroke survivors on stroke units against evidenced standards for care, thus ensuring evidence based practice. Nevertheless, process of care is only one form of measuring stroke unit care and the audit programmes collect some limited functional status data, data relating to risk-factor co-morbidities and treatment received data. Therefore, the scope of this study is to build on the minimum data set currently collected and to collect post-stroke data in domains not currently collected. The International Consortium for Health Outcomes Measurement (ICHOM) takes important steps to collect data outside of process of care data such as a Patient Reported outcome data in their minimum outcome data set for stroke [currently under review].. Nevertheless, the ICHOM doesn't currently advocate the specific collection of data relating to cognitive impairment or emotional problems secondary to stroke. It is in these important aspects that this study will augment the data set currently advocated by ICHOM to collect data in the areas of cognitive impairment and emotional problems secondary to stroke. Therefore, the aim of this study is to quantify the prevalence of morbidity at six months post-stroke.
Music Neglect Training has been developed for patients with hemispatial neglect to improve their attention on the left side. The purpose of this study was to examine the immediate and carry-over effect of Musical Neglect Training on unilateral visual neglect. Standardized assessments (Albert's test and Line Bisection Test) were used to measure a range of visual field. A total of 6 musical exercises with tone bars which are aligned horizontally helped to improve attention and perception of the visual field on the left side.
Millions of elderly adults in the USA have age related hearing loss (ARHL), a malady that affects half of adults 60-69 years, and the majority of older adults. This hearing loss not only impacts communication and functional ability, but also is strongly associated with cognitive decline and decreased quality of life. This project aims to develop effective strategies to compensate and reverse this process through a deeper understanding of plasticity and adaptive auditory function, and how to engage it and harness it to remedy ARHL.
Older people experience great difficulty understanding speech, especially accented English, and this problem is expected to increase with the influx of immigrants who provide services to the elderly population. The research examines the underlying factors that contribute to older listeners' difficulty understanding accented speech, including those associated with age-related hearing loss, changes in processing in auditory pathways in the brain, and general cognitive decline. The investigation also evaluates the efficacy of training strategies to improve understanding of accented English by older people. Outcomes of this research are expected to improve communication between senior citizens and those with whom they interact daily, and thereby improve quality of life for the older segment of the Nation's population.
Head-mounted display based virtual reality rehabilitation for hemispatial neglect.
Hemispatial neglect is a post-stroke condition in which patients fail to detect stimuli presented on the side of space opposite to the damaged brain hemisphere (contralesional space). To date, there is no established effective treatment for this condition. A virtual reality (VR) behavioral training for the attention deficits characteristic of patients with hemispatial neglect was developed. Patients are stimulated in the visual and auditory modality to orient towards the contralesional side and are rewarded for detecting targets on this side in this training. In the current study the researchers aim to answer two main questions: 1) how feasible is a VR game-based intervention in stroke patients? and 2) what is the efficacy of the virtual reality game-based intervention in reducing the attention deficits characteristic of hemispatial neglect? To answer these questions a randomized partially double-blind placebo-controlled crossover study will be conducted. Two within-subject conditions will be compared: in the active condition patients will play a VR game in which multisensory stimulation is progressively presented in the neglected region (the location where previously presented targets were missed by the patient) and in the placebo condition patients will play a VR game in which the stimulation is presented in the center of of the VR environment. Neglect symptoms will be measured on a two-daily basis to establish the trend of symptom recovery through time. The hypothesis states that symptoms will recover more quickly when patients receive the active version of the VR intervention compared to the placebo version of the VR intervention.
Hemispatial neglect is a disorder where the patient has difficulty attending to objects and information in the left side of space, which occurs following strokes to the right side of the brain. This project is designed to help us understand how optokinetic stimulation treats the symptoms of hemispatial neglect.
The aim of this study is to investigate the possible effects that a motor limitation at the peripheral level might have on the ability to visually discriminate others' actions. Previous literature has shown that specific motor skills (motor expertise) facilitate the visual discrimination of domain-specific actions, and that these motor experts' superior abilities might be mediated by areas not only responsible for the visual recognition of movements (as it happens in non-expert subjects) but also involved in motor planning. Similarly, impairment in the motor system due to neurological damage modulates not only the ability to perform movements but also the ability to discriminate and predict the temporal course of observed actions. Based on these findings, it has been hypothesized that the motor representations of gait, despite being a hyper-learned motor pattern, might be subjected to modification as a result of an impairment of walking caused by a peripheral functional limitation in the lower limbs as the one characterizing orthopaedic patients who underwent a surgical operation for total knee arthroprosthesis. In this protocol, patients are thus required to perform visual discrimination tasks based on the observation of movements performed with either the upper or lower limbs, and their performance is expected to correlated with their functional impairments in movement execution. These results would indicate that the (in)ability to perform a movement might have an impact on its representation at the central level and on internal motion simulation capabilities, which also influence the ability to visual discriminate others' actions through action-perception transfer: this would suggest that rehabilitation in orthopaedic patients should take into account (and restore) such a central impairment in motor representations.
This study will measure if five minutes of vibration to the upper back neck muscles, prior to standard of care treatment, will improve symptoms of spatial neglect and/or activities of daily living function for patients who have had a stroke.