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Clinical Trial Summary

The efficacy of an innovative rehabilitation treatment for deficit in time processing is tested in right brain damaged patients. Patients with a focal lesion following a stroke and without general cognitive impairment will be submitted to computerized tests assessing the ability to estimate time duration (intervals around 7500 ms) and to mental travel in time. Moreover, the impact of the deficit in time processing in everyday life will be evaluated by using ad hoc questionnaires. Patients will perform tasks before and after two weeks of a new rehabilitation treatment, combining a training for one week with prismatic googles inducing prismatic adaptation (PA) plus Virtual Reality (VR) and a training for one week with neutral googles inducing no-adaptation (NA) plus Virtual Reality. Participants will be randomized into two groups. Each group will be submitted to both treatments in a different order, accordingly with a crossover design. A greater amelioration in time processing after PA+VR than NA+VR training should be found. Moreover, an improvement in everyday life activities is expected accordingly with the amelioration in time processing.


Clinical Trial Description

Time processing involves different abilities - i.e. estimating the duration of an event and moving in past and future time - and it is a fundamental ability in everyday life. However, in neuropsychology, time processing is routinely neglected in the assessment of cognitive deficits in brain-damaged patients. This is surprising since time is an important function that permeates our activities: we perceive mismatches in lip reading (milliseconds), we estimate how long it takes to be ready for work (minutes), and we plan how long it will take a manuscript to be accepted (usually months). Thus, impairment in processing time has important consequences in daily life. For instance, it is known that right brain damaged (RBD) patients with spatial attentional deficit (neglect) are impaired in estimate the duration of a time interval as well as in the ability of mentally moving in time (Mental Time Travelling). Previous studies have demonstrated an improvement of time estimation and mental time travel after a leftward shift of spatial attention induced by a single session of prismatic adaptation (PA). Moreover, a recent study investigated the long-term duration of the benefits induced by 10 daily sessions of PA treatment on mental time travel and functional abilities in neglect patients. Results suggest that the PA treatment induces a long-lasting and stable ameliorations of mental time travel and functional competences. To generalize the effects of PA treatment to everyday life, here we propose to combine PA with a virtual reality training (VR). VR has recently been used as an effective tool both for the assessment and rehabilitation of cognitive deficits, because it allows post-stroke patients to interact with ecological environments similar to the real ones, but in a safe and controlled condition. Aim of this study is to set up a rehabilitation procedure for temporal deficits, combining a well-established PA procedure with an innovative, more engaging and ecological VR approach. Patients will perform tasks before and after two weeks of a new rehabilitation treatment, combining a training for one week with prismatic googles inducing prismatic adaptation (PA) plus Virtual Reality (VR) and a training for one week with neutral googles inducing no-adaptation (NA) plus Virtual Reality. Participants will be randomized into two groups. Each group will be submitted to both treatments in a different order, accordingly with a crossover design. A greater amelioration in time processing after PA+VR than NA+VR training should be found. Moreover, an improvement in everyday life activities is expected accordingly with the amelioration in time processing. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04373837
Study type Interventional
Source Istituti Clinici Scientifici Maugeri SpA
Contact
Status Completed
Phase N/A
Start date February 1, 2018
Completion date January 13, 2023

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