Unlock the Secrets of Ageing Brains Through P300 Brain-computer Interface Games
NCT ID: NCT06628427
Last Updated: 2024-10-08
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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NOT_YET_RECRUITING
15 participants
OBSERVATIONAL
2024-10-15
2025-07-14
Brief Summary
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Detailed Description
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Conditions
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Study Design
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COHORT
CROSS_SECTIONAL
Study Groups
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Elderly with Mild Cognitive Impairments
MoCA Test
MoCA (Montreal Cognitive Assessment or The MoCA Test) was validated as a highly sensitive tool for early detection of mild cognitive impairment (MCI) in hundreds of peer-reviewed studies since 2000. MoCA has been widely adopted in clinical settings and used in academic and non-academic research around the world. The sensitivity of MoCA for detecting MCI is 90%, compared to 18% for the MMSE. Prospective participants meeting the eligibility criteria, as determined by the Montreal Cognitive Assessment (MoCA) test, will be invited to the Brain- Computer Interface (BCI) laboratory at the Kroto Research Centre on the University of Sheffield north campus to participate in the study.
Random Dot Motion (RDM) task
Random Dot Motion task (RDM) has been widely used in research on spatial attention, and decision-making ability, etc., and its results (accuracy and reaction time) can be used as indicators to detect spatial attention. During the assessment, participants were required to monitor a series of dots in constant random motion on the screen. The dots sometimes moved coherently together to the left or right, and participants were required to press the left mouse button when they perceived them moving to the left and the right mouse button when they observed them moving to the right. We are going to use the motion coherence level of 50%. The higher the coherence level, the greater the number of dots moving together, and the combination of the moving direction and coherence level of the dots appear randomly during the task.
P300-BCI task without feedback
Two different speller matrix sizes: 3×3 and 5×5, two inter-stimulus intervals (ISIs): 117ms (i.e., commonly used ISI for healthy adults) and 175ms (i.e., 50% longer than the widely used ISI) and two spelling words (QUICK and JUMP) are designed in this experiment to explore the calibration accuracy of these eight parameter combinations in the young and old groups and obtain the best parameter combination. The matrix contains letters and digits, and the target letters will be displayed below the matrix letter by letter. When the speller runs, the rows and columns in the matrix will flash 15 times each randomly. Each flash will last for 55ms, and the subsequent ISI will last for different times according to different parameter designs. Participants only need to focus on the target letter and silently count the number it flashes, as flashing target letters can generate P300 if well attended.
Interventions
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MoCA Test
MoCA (Montreal Cognitive Assessment or The MoCA Test) was validated as a highly sensitive tool for early detection of mild cognitive impairment (MCI) in hundreds of peer-reviewed studies since 2000. MoCA has been widely adopted in clinical settings and used in academic and non-academic research around the world. The sensitivity of MoCA for detecting MCI is 90%, compared to 18% for the MMSE. Prospective participants meeting the eligibility criteria, as determined by the Montreal Cognitive Assessment (MoCA) test, will be invited to the Brain- Computer Interface (BCI) laboratory at the Kroto Research Centre on the University of Sheffield north campus to participate in the study.
Random Dot Motion (RDM) task
Random Dot Motion task (RDM) has been widely used in research on spatial attention, and decision-making ability, etc., and its results (accuracy and reaction time) can be used as indicators to detect spatial attention. During the assessment, participants were required to monitor a series of dots in constant random motion on the screen. The dots sometimes moved coherently together to the left or right, and participants were required to press the left mouse button when they perceived them moving to the left and the right mouse button when they observed them moving to the right. We are going to use the motion coherence level of 50%. The higher the coherence level, the greater the number of dots moving together, and the combination of the moving direction and coherence level of the dots appear randomly during the task.
P300-BCI task without feedback
Two different speller matrix sizes: 3×3 and 5×5, two inter-stimulus intervals (ISIs): 117ms (i.e., commonly used ISI for healthy adults) and 175ms (i.e., 50% longer than the widely used ISI) and two spelling words (QUICK and JUMP) are designed in this experiment to explore the calibration accuracy of these eight parameter combinations in the young and old groups and obtain the best parameter combination. The matrix contains letters and digits, and the target letters will be displayed below the matrix letter by letter. When the speller runs, the rows and columns in the matrix will flash 15 times each randomly. Each flash will last for 55ms, and the subsequent ISI will last for different times according to different parameter designs. Participants only need to focus on the target letter and silently count the number it flashes, as flashing target letters can generate P300 if well attended.
Eligibility Criteria
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Inclusion Criteria
2. Normal or corrected-to-normal vision
3. Can maintain sitting with or without support for around 60 minutes continuously
4. Cognitive and language abilities to understand and participate in the study protocol and able to give consent and understand instructions
Exclusion Criteria
2. Pre-existing severe systemic disorders like active cancer, end-stage pulmonary or cardiovascular disease, psychiatric illness including severe alcohol or drug abuse
3. Past history of epilepsy- with seizures in last 12 months
4. History of photosensitive epilepsy.
5. Allergy to latex
50 Years
ALL
No
Sponsors
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University of Sheffield
OTHER
Responsible Party
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Principal Investigators
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Mahnaz Arvaneh
Role: PRINCIPAL_INVESTIGATOR
University of Sheffield
Locations
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The University of Sheffield
Sheffield, South Yorkshire, United Kingdom
Countries
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Central Contacts
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Facility Contacts
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Mahnaz Arvaneh
Role: backup
Other Identifiers
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IRAS346367
Identifier Type: -
Identifier Source: org_study_id
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