This is an observational longitudinal study in 4 cohorts of patients with Parkinsonian syndromes, who are visiting the Movement Disorders outpatient clinics. The aim of the study is to assess the difference of oculometric measures in different neurodegenerative brain conditions and their accuracy over time, and as compared to clinical diagnosis, in order to find a change over time, difference between subgroups and correlations with accepted clinical endpoints in subjects who meet the inclusion criteria and who provide a signed Informed Consent.
As a part of the study, about 40 subjects will undergo a neurological evaluation including motor and cognitive assessments and a NeuraLight session including oculometric measurements and eye-tracking recordings using a novel software-based platform and an eye-tracking system (Tobii, CE-marked class B approved device). Test duration will be approx. 20 minutes. The oculometric evaluation will occur for at least 50% of the cohort 3 times (at baseline, at 6-months and at 12-month follow-up), and all subjects will be recruited over a period of 9 months. All assessments will be performed during a clinic visit unless authorized to be conducted remotely.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
OTHER
Masking
NONE
Enrollment
40
NeuraLight software-based platform for PD patients
NeuraLight software-based platform for PSP patients
NeuraLight software-based platform for MSA patients
NeuraLight software-based platform
Instituto de Biomedicina de Sevilla (IBiS)
Seville, Spain
Change of saccadic latency between subgroups
A difference between saccadic latency among the cohorts, enabling a categorization of different patients in study cohorts (p\<0.05)
Time frame: 12 months
Change of antisaccadic error rate between subgroups
A difference between antisaccadic error rate (%) among the cohorts, enabling a categorization of different patients in study cohorts (p\<0.05)
Time frame: 12 months
Change of saccadic latency over time as evaluated during visits
Difference between saccadic latency (ms) as quantified during each visit by the NeuraLight test measured using a statistical comparison of values (e.g. t-test, ANOVA), p\>0.05) over time during study period
Time frame: 12 months
Change of antisaccadic error rate over time as evaluated during visits
Difference between antisaccadic error rate (%) as quantified during each visit by the NeuraLight test measured using a statistical comparison of values (e.g. t-test, ANOVA), p\>0.05) over time during study period
Time frame: 12 months
Correlation between MDS-UPDRS score and its parts with saccadic latency
The correlation between the Movement Disorder Society-Sponsored Revision of the Unified Parkinson's Disease Rating Scale (MDS-UPDRS, scored 0-to a maximum total of 199, indicating the worst possible disability from PD) and its parts with saccadic latency (ms) measured using R-Square (high correlation\>0.5, moderate correlation 0.2-0.5, low correlation\<0.2), p\<0.05)
Time frame: 12 months
Correlation between UMSARS score and its parts with saccadic latency
The correlation between the Unified Multiple System Atrophy Rating Scale (UMSARS) scored 0-to a maximum total of 48, indicating the worst possible disability from MSA) and its parts with saccadic latency (ms) measured using R-Square (high correlation\>0.5, moderate correlation 0.2-0.5, low correlation\<0.2), p\<0.05)
Time frame: 12 months
Correlation between PSP-CDS and its parts with saccadic latency
The correlation between the Progressive Supranuclear Palsy Clinical Deficits Scale (PSP-CDS) scored 0-to a maximum total of 100, indicating the worst possible disability from MSA) and its parts with saccadic latency (ms) measured using R-Square (high correlation\>0.5, moderate correlation 0.2-0.5, low correlation\<0.2), p\<0.05)
Time frame: 12 months
Correlation between MoCA score and its parts with anti-saccadic error rates
The correlation between the Montreal Cognitive Assessment (MoCA, scored 0- to a total possible score is 30 points, where a score of 26 or above is considered normal) with anti-saccadic error rates (%), measured using R-Square (high correlation\>0.5, moderate correlation 0.2-0.5, low correlation\<0.2), p\<0.05) according to the Montreal Cognitive Assessment (MoCA) at visits
Time frame: 12 months
Correlation between MoCA score and its parts with smooth pursuit
The correlation between Montreal Cognitive Assessment (MoCA, scored 0- to a total possible score is 30 points, where a score of 26 or above is considered normal) with smooth pursuit speed (ms) measured using R-Square (high correlation\>0.5, moderate correlation 0.2-0.5, low correlation\<0.2), p\<0.05) according to the Montreal Cognitive Assessment (MoCA) at visits
Time frame: 12 months
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