Mental Strategy Training in Mild Cognitive Impairment
Reducing Hippocampal Hyperactivity in Patients With Mild Cognitive Impairment
Przegląd badań
Status
Status
Warunki
Warunki
Interwencja / Leczenie
Interwencja / Leczenie
Typ studiów
Typ studiów
Zapisy (Rzeczywisty)
Zapisy
Faza
Faza
- Nie dotyczy
Kontakty i lokalizacje
Lokalizacje studiów
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Canton of Bern
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Bern, Canton of Bern, Szwajcaria, 3000
- Universitäre Psychiatrische Dienste Bern
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Kryteria uczestnictwa
Kryteria kwalifikacji
Kryteria kwalifikacji
Wiek uprawniający do nauki
- Dorosły
- Starszy dorosły
Akceptuje zdrowych ochotników
Opis
Inclusion Criteria:
- diagnosis of Mild Cognitive Impairment
- between 60 - 80 years of age
- fluent in German
- normal or corrected-to-normal vision
- normal or corrected-to-normal hearing
Exclusion Criteria:
- any history of seizures
- current psychotropic medication
- other severe neurological or psychiatric disease
- current or lifetime drug or alcohol abuse
- severe brain damage other than atrophy in the hippocampus or the medial temporal lobe
- claustrophobia
- magnetisable implants (e.g., cardiac pacemakers, brain stimulator)
Plan studiów
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Leczenie
- Przydział: Randomizowane
- Model interwencyjny: Przydział równoległy
- Maskowanie: Brak (otwarta etykieta)
Liczba ramion
Broń i interwencje
Grupa uczestników / ArmGrupa uczestników / Arm |
Interwencja / LeczenieInterwencja / Leczenie |
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Eksperymentalny: Group A: 15 participants will be assigned to group A
Group A will attend 6 mental strategy trainings and will start the training after the first assessment.
The training content is identical for all groups.
The groups differ only in the number of training sessions and in the timing of the intervention onset (i.e., after the first assessment or after three assessment time points).
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Trainings will be done in groups of up to five people.
During training, participants will be presented with an implicit pattern separation task (i.e., for which no response is necessary).
At the same time, they will apply mental strategies that were beneficial for hippocampal activity reduction in our previous study.
We will use four different mental strategies ("Imagination", "Bodily Perception", "Active Thinking" and "Visual Perception") during each of the training sessions.
During imagination participants will need to vividly imagine a scene that exerts a calming effect on them.
During "bodily perception" participants will be instruced to focus on their feet or hands while slowly contracting and relaxing them.
During active thinking they will perform cognitive tasks such as reciting the alphabet or counting.
During visual perception they will focus on a specific part of the presented image.
The order of the mental strategies is similar for all participants and all trainings.
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Eksperymentalny: Group B: 15 participants will be assigned to group B
Group B will attend 4 mental strategy trainings and will start with the training after the first assessment.
The training content is identical for all groups.
The groups differ only in the number of training sessions and in the timing of the intervention onset (i.e., after the first assessment or after three assessment time points).
|
Trainings will be done in groups of up to five people.
During training, participants will be presented with an implicit pattern separation task (i.e., for which no response is necessary).
At the same time, they will apply mental strategies that were beneficial for hippocampal activity reduction in our previous study.
We will use four different mental strategies ("Imagination", "Bodily Perception", "Active Thinking" and "Visual Perception") during each of the training sessions.
During imagination participants will need to vividly imagine a scene that exerts a calming effect on them.
During "bodily perception" participants will be instruced to focus on their feet or hands while slowly contracting and relaxing them.
During active thinking they will perform cognitive tasks such as reciting the alphabet or counting.
During visual perception they will focus on a specific part of the presented image.
The order of the mental strategies is similar for all participants and all trainings.
|
|
Eksperymentalny: Group C: 15 participants will be assigned to group C
Group C will attend 2 mental strategy trainings and will start with the training after the first assessment.
The training content is identical for all groups.
The groups differ only in the number of training sessions and in the timing of the intervention onset (i.e., after the first assessment or after three assessment time points).
|
Trainings will be done in groups of up to five people.
During training, participants will be presented with an implicit pattern separation task (i.e., for which no response is necessary).
At the same time, they will apply mental strategies that were beneficial for hippocampal activity reduction in our previous study.
We will use four different mental strategies ("Imagination", "Bodily Perception", "Active Thinking" and "Visual Perception") during each of the training sessions.
During imagination participants will need to vividly imagine a scene that exerts a calming effect on them.
During "bodily perception" participants will be instruced to focus on their feet or hands while slowly contracting and relaxing them.
During active thinking they will perform cognitive tasks such as reciting the alphabet or counting.
During visual perception they will focus on a specific part of the presented image.
The order of the mental strategies is similar for all participants and all trainings.
|
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Aktywny komparator: Group D: 10 participants will be assigned to group D
Group D will attend 2 mental strategy trainings and will start with the training after the third assessment.
The training content is identical for all groups.
The groups differ only in the number of training sessions and in the timing of the intervention onset (i.e., after the first assessment or after three assessment time points).
|
Trainings will be done in groups of up to five people.
During training, participants will be presented with an implicit pattern separation task (i.e., for which no response is necessary).
At the same time, they will apply mental strategies that were beneficial for hippocampal activity reduction in our previous study.
We will use four different mental strategies ("Imagination", "Bodily Perception", "Active Thinking" and "Visual Perception") during each of the training sessions.
During imagination participants will need to vividly imagine a scene that exerts a calming effect on them.
During "bodily perception" participants will be instruced to focus on their feet or hands while slowly contracting and relaxing them.
During active thinking they will perform cognitive tasks such as reciting the alphabet or counting.
During visual perception they will focus on a specific part of the presented image.
The order of the mental strategies is similar for all participants and all trainings.
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Co mierzy badanie?
Podstawowe miary wyniku
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Hippocampal activity during the pattern separation task
Ramy czasowe: We assess hippocampal activity 4 times from baseline until the last assessment (approximately 10 weeks later).
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In each 4 fMRI sessions, we apply a pattern separation task (i.e., the mnemonic similarity test, MST).
Participants need to answer to specific trial types.
These are stimuli of everyday objects and the participants have to identify if a stimulus is "new" (they have not seen it before), "old" (exactly the same stimulus has been presented already) or "similar" (a stimulus has been shown before but was different in shape or colour).
During each task, we will evaluate their hippocampal activity using similar "lure" trials that rely on pattern separation.
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We assess hippocampal activity 4 times from baseline until the last assessment (approximately 10 weeks later).
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Miary wyników drugorzędnych
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
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Pattern completion errors
Ramy czasowe: We will assess pattern completion errors 4 times from baseline until the last assessment (approximately 10 weeks later).
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In each 4 fMRI sessions, we apply a pattern separation task (i.e., the mnemonic similarity test, MST).
Participants need to answer to specific trial types.
These are stimuli of everyday objects and the participants have to identify if a stimulus is "new" (they have not seen it before), "old" (exactly the same stimulus has been presented already) or "similar" (a stimulus has been shown before but was different in shape or colour).
Pattern completion errors refer to the mis-identification of similar objects as being old.
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We will assess pattern completion errors 4 times from baseline until the last assessment (approximately 10 weeks later).
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Pattern Separation success
Ramy czasowe: We will asssess pattern separation success 4 times from baseline until the last assessment (approximately 10 weeks later).
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Correct pattern separation occurs when a participant correctly identifies a similar objects as "similar" in the pattern separation task.
Compared to the LDI, here we only focus only on correct responses without considering potential response biases.
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We will asssess pattern separation success 4 times from baseline until the last assessment (approximately 10 weeks later).
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Lure Discrimination Index
Ramy czasowe: We will evaluate the LDI 4 times from baseline until the last assessment (approximately 10 weeks later).
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In each 4 fMRI sessions, participants will perform a pattern separation task (i.e., mnemonic similarity test, MST).
A widely used metric to report performance in this task is the lure discrimination index (LDI) which is used to determine pattern separation abilities while accounting for response biases
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We will evaluate the LDI 4 times from baseline until the last assessment (approximately 10 weeks later).
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Współpracownicy i badacze
Sponsor
Sponsor
Śledczy
Śledczy
- Główny śledczy: Jessica Peter, Professor, University Hospital of Old Age Psychiatry and Psychotherapy
Daty zapisu na studia
Główne daty studiów
Rozpoczęcie studiów (Rzeczywisty)
Rozpoczęcie studiów
Zakończenie podstawowe (Rzeczywisty)
Zakończenie podstawowe
Ukończenie studiów (Rzeczywisty)
Ukończenie studiów
Daty rejestracji na studia
Pierwszy przesłany
Pierwszy przesłany
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy przesłany, który spełnia kryteria kontroli jakości
Pierwszy wysłany (Rzeczywisty)
Pierwszy wysłany
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
Ostatnia wysłana aktualizacja
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
Ostatnia weryfikacja
Ostatnia weryfikacja
Więcej informacji
Terminy związane z tym badaniem
Słowa kluczowe
Dodatkowe istotne warunki MeSH
Inne numery identyfikacyjne badania
Inne numery identyfikacyjne badania
- 50089
Plan dla danych uczestnika indywidualnego (IPD)
Planujesz udostępniać dane poszczególnych uczestników (IPD)?
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Bada produkt urządzenia regulowany przez amerykańską FDA
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