Mental Strategy Training in Mild Cognitive Impairment
Reducing Hippocampal Hyperactivity in Patients With Mild Cognitive Impairment
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Tipo de estudo
Tipo de estudo
Inscrição (Real)
Inscrição
Estágio
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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-
Canton of Bern
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Bern, Canton of Bern, Suíça, 3000
- Universitäre Psychiatrische Dienste Bern
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-
Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
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)
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
|---|---|
|
Experimental: 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).
|
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.
|
|
Experimental: 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.
|
|
Experimental: 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.
|
|
Comparador Ativo: 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.
|
O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Hippocampal activity during the pattern separation task
Prazo: We assess hippocampal activity 4 times from baseline until the last assessment (approximately 10 weeks later).
|
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).
|
Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Pattern completion errors
Prazo: We will assess pattern completion errors 4 times from baseline until the last assessment (approximately 10 weeks later).
|
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
Prazo: 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.
|
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
Prazo: We will evaluate the LDI 4 times from baseline until the last assessment (approximately 10 weeks later).
|
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
|
We will evaluate the LDI 4 times from baseline until the last assessment (approximately 10 weeks later).
|
Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Jessica Peter, Professor, University Hospital of Old Age Psychiatry and Psychotherapy
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Início do estudo
Conclusão Primária (Real)
Conclusão Primária
Conclusão do estudo (Real)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
Outros números de identificação do estudo
- 50089
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