COgilus Remediation in Alzheimer Patients (CORA)

Study Overview
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Brief Summary
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This study evaluates the usability of a new tablet PC application to stimulate cognitive functions. Patients hospitalized in a geriatric ward (day or complete hospitalisation) but also their informal and professional caregivers will assess the usability of the application using a structured survey.

Detailed Description
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Attention span is one of the most frequently and early impaired cognitive functions during aging, especially in neurocognitive disorders such as Alzheimer's disease. Decline of attention span can lead to a cognitive complaint by the patient or his or her relatives, even in the prodromal phase of the disease (DSM V: minor neurocognitive disorder). The current challenge is to develop strategies to prevent the cognitive decline in patients with minor neurocognitive disorder or major cognitive disorder with slight impairment, and thus to limit cognitive decline. However, to date, no strategy has shown clear effectiveness in preventing cognitive decline in patients with neurocognitive disorder. Interestingly, the integration of perceptual skills are modified in patients with neurocognitive disorders, and in particular visuomotor skills (from early stages). Measurements of evoked potientials during visual stimulation in patients with minor neurocognitive disorder have shown a preservation of sensory responses but a decrease in cognitive responses. Based on this observation, a US team had recently tested the effectiveness of computer-based visual cognitive exercises performed regularly for 8 weeks in patients free of major neurocognitive disorder. They had reported an improvement in information processing speed and walking performance. These results suggest that regular cognitive stimulation exercises using tablet PC visual exercices could improve attention span and in particular the information processing speed in patient with minor or early major neurocognitive disorder. In particular, Cogilus, a cross-platform tablet PC application (Android, iOS, Microsoft) has recently been developed for this purpose. The Cogilus project, is designed for health professionals who support patients with neurological syndromes including cognitive or attentional dysfunctions. The application is also open to carers and family members, who will be able to support the patient in using the application (based on the exercices proposed by professionals). The finale objective of the Cogilus project is to assess the impact of the regular use of Cogilus on patient with minor or early major neurocognitive disorder. Considering the specific needs in usability for this population, the first step to devoloppe such technology is to assess the usability of the application in patients but also in unformal and professional cargivers.

Official Title
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COgilus Remediation in Alzheimer Patients

Conditions
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Patient Satisfaction, Neurocognitive Disorders

Intervention / Treatment
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* Other: usability survey


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: no opposition to be part of the study patients: over 65 years old to be hospitalised in geriatric medicine department of Angers University Hospital mild cognitive impairment (winblad criterion) or minor neurocognitive disorder du to alzheimer disease or early major neurocognitive disorder du to alzheimer disease (DSM V and NINCDS-ADRDA criterion) unformal cargivers and health profesionnals: over 18 years old Exclusion Criteria: depression (geriatric depression scale 15 items: over 10/15) delirum (assessed with the confusion assessment methode) to be under legal protection

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| geriatric inpatients with neurocognitive disorder<br>usability assessment after 30 minutes to test the app | Other: usability survey<br>* usability survey composed of subpart: System Usability Scale, questions about global ergonomics of the app, questions about eronomics of the exerecices, question about global satisfaction.<br>|
| unformal cargivers<br>usability assessment after 30 minutes to test the app with their relatives | Other: usability survey<br>* usability survey composed of subpart: System Usability Scale, questions about global ergonomics of the app, questions about eronomics of the exerecices, question about global satisfaction.<br>|
| health professionals<br>usablity assessment after the enrollement of all patients and unformal caregivers | Other: usability survey<br>* usability survey composed of subpart: System Usability Scale, questions about global ergonomics of the app, questions about eronomics of the exerecices, question about global satisfaction.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Usability regarding the Cogilus app | Average of the usability scores. Usability score is calculated using the responses to the validated System Usability Scale (SUS). SUS is composed of 10 questions. Each response is ranking from 0 to 5. The total score ranges between 0 and 100. It is calculted considering the sum of the result on each question multiplicated by 2. An average score equal or over 70/100 will be considered as satisfying. | after 30 minutes of test of the app | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Satisfaction regarding the Cogilus app | Average recommendation score. Satisfaction score is calculated using the responses to the recommendation scale. This scale is a ten point's scale from 0 (I don't recommend at all) to 10 (I fully recommend). An average score greater than 5/10 would be acceptable, a score greater than or equal to 7/10 would be satisfactory. | after 30 minutes of test of the app | 
| Global ergonomics regarding the Cogilus app | Average ergonomics score: The ergonomics score is a composite score based on the average of the answers to four ergonomics questions on a four-level Likert scale. The Likert scale ranging from 1 (strongly disagree) to 4 (strongly agree). The average score is reported on ten. An average score greater than 5/10 would be acceptable, a score greater than or equal to 7/10 would be satisfactory. | after 30 minutes of test of the app | 
| Ergonomics regarding the exercices proposed in the Cogilus app | Average ergonomics score: The ergonomics score is a composite score based on the average of the answers to four ergonomics questions on a four-level Likert scale. The Likert scale ranging from 1 (strongly disagree) to 4 (strongly agree). The average score is reported on ten. An average score greater than 5/10 would be acceptable, a score greater than or equal to 7/10 would be satisfactory. | after 30 minutes of test of the app | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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elderly, old people, minor neurocognitive disorder, major neurocognitive disorder, neurocognitive disorder, mild cogntitive impairment, MCI, alzheimer disease, app, usability, ergonomic, satisfaction