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Investigating Usability of c-SIGHT in the Homes of Brain Injury Survivors

Investigating a Portable Patient-led Virtual Reality Platform for Assessment and Rehabilitation of Hemispatial Neglect: a Usability Study

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03963661
Acronym
c-SIGHT
Enrollment
10
Registered
2019-05-28
Start date
2019-05-06
Completion date
2020-04-03
Last updated
2019-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Attention Deficit, Brain Injuries, Spatial Neglect, Stroke

Keywords

Telerehabilitation, Spatial neglect, SIGHT, Computorized therapy, Stroke, Innatention, Self-admnistered therapy, Usability

Brief summary

A brain injury can damage the brain, so that it no longer receives information about the space around one side of the world. If this happens, people may not be aware of anything on one side, usually the same side they also lost their movement (the most affected side). This severe condition is called spatial neglect. Currently there is no recommended diagnostic test or clinically-proven treatment for the condition. In a recent study, the investigators found a long-lasting reduction in neglect if people practiced picking-up an object with their unaffected hand. This intervention is called Spatial Inattention Grasping Home-based Therapy (SIGHT). It requires people to lift wooden rods of different lengths. Once a person is familiar with the task, they can practice on their own at a time convenient to them in their homes. The investigators have developed the first computerized version of SIGHT (c-SIGHT) as well as a novel diagnostic test for neglect using portable low-cost motion-tracking technology that can be used in the patient's home. In the proposed study, the investigators will investigate how usable and acceptable this technology is in people's homes. Stroke survivors (recruited from community settings) will undergo a 7-day self-led training at their homes with c-SIGHT. At the end of the intervention, 1:1 semi-structured interviews will be carried out with both stroke survivors and carers to investigate usability and acceptability of c-SIGHT. Moreover, spatial neglect, carer burden and motor function will be assessed pre- and post-completion of c-SIGHT.

Interventions

BEHAVIORALc-SIGHT (computorized spatial innatention grasping home-based therapy)

C-SIGHT will be self-administered at people's homes. c-SIGHT is a computerized therapy administered via people's television. The therapy involves performing repeated rod lifts with the less impaired arm in response to auditory and visual instructions presented on the television screen connected to a laptop. A small motion-tracking camera monitors rod lifts during therapy sessions. People will be asked to self-administer c-SIGHT for 1 hour a day (30min after breakfast and 30min after lunch) for 7 consecutive days. The first day of therapy will be performed with a therapist there for training purposes.

Sponsors

National Institute for Health Research, United Kingdom
CollaboratorOTHER_GOV
University of East Anglia
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* +18 * suffered brain injury * have TV with around 2 meters in front of it to be able to run the therapy * live in the Norfolk, Suffolk, Essex or Cambridgeshire (UK) * no other pre-existing neurological disorders (such as dementia) * no language impairment (able to follow 1-stage command) * mental capacity to consent * no known learning disability * no major psychiatric illness * no history of substance abuse

Design outcomes

Primary

MeasureTime frameDescription
Behavioral Inattention Test (BIT) conventional sub testsChange from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Standardized measure of spatial inattention

Secondary

MeasureTime frameDescription
Computerized extrapersonal neglect test (CENT)Change from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Computerized test measuring ego and allocentric neglect sub types in extra personal space via television screen
Pinch and grip force task (dynamometer)Change from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Measures upper limb function
Caregiver Burden ScaleChange from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)To assess perceived burden among people caring for others with disabilities. There are 22 items in which the carer rates perceived burden from 0 (never) to 4 (nearly always). A total score of 0 to 20 = little or no burden; 21 to 40 = mild to moderate burden; 41 to 60 = moderate to severe burden; 61 to 88 = severe burden.
Stroke Specific Quality of Life Scale (SS-QOL)Change from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)A patient-centered outcome measure intended to provide an assessment of health-related quality of life (HRQOL) specific to patients with stroke. Patients must respond to each question of the SS-QOL with reference to the past week. It is a self-report scale containing 49 items in 12 domains. Items are rated on a 5-point Likert scale. Higher scores indicate better functioning. The SS-QOL yields both domain scores and an overall SS-QOL summary score. The domain scores are unweighted averages of the associated items while the summary score is an unweighted average of all twelve domain scores.
Line bisection TestChange from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Test for spatial inattention which measures spatial biases when marking middle of 10 20mm lines. Bisection error bigger that 6mm is considered evidence of spatial inattention.
Broken Hearts test from Oxford Cognitive Screening (paper version)Change from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Standardized measure of spatial inattention
Catherine Bergego ScaleChange from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Standardized checklist to detect presence and degree of unilateral neglect during observation of everyday life situations. The scale also measures self-awareness of behavioral neglect (anosognosia). The CBS uses a 4-point rating scale to indicate the severity of neglect for each item: 0 = no neglect 1. = mild neglect (patient always explores the right hemispace first and slowly or hesitantly explores the left side) 2. = moderate neglect (patient demonstrates constant and clear left-sided omissions or collisions) 3. = severe neglect (patient is only able to explore the right hemispace) This results in a total score out of 30. Azouvi et al. (2002, 2003) have reported arbitrary ratings of neglect severity according to total scores: 0 = No behavioral neglect 1-10 = Mild behavioral neglect 11-20 = Moderate behavioral neglect 21-30 = Severe behavioral neglect

Other

MeasureTime frameDescription
WAIS Digit span (control measure)Change from baseline (T0) to 7 days (pre-treatment baseline, T1) and from T1 to immediately after 7 days of therapy (T2)Digit span from WAIS (forward, backward and sequential) is used as a control task
System Usability Scaleimmediately after 7 days of therapy (T2)To assess usability of devices and applications. Participants are asked to score the following 10 items with one of five responses that range from Strongly Agree to Strongly disagree. The participant's scores for each question are converted to a new number, added together and then multiplied by 2.5 to convert the original scores of 0-40 to 0-100. Though the scores are 0-100, these are not percentages and should be considered only in terms of their percentile ranking. Based on research, a SUS score above a 68 would be considered above average and anything below 68 is below average.
Semi-structured interview at end of study with carer and stroke survivorimmediately after 7 days of therapy (T2)To assess usability (qualitative data)

Countries

United Kingdom

Contacts

Primary ContactStephanie Rossit, Ph.D
s.rossit@uea.ac.uk+44 (0)160359 1674
Backup ContactValerie Pomeroy, Ph.D
v.pomeroy@uea.ac.uk+44 (0)1603 59 1668

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026