Mental Strategy Training in Mild Cognitive Impairment
Reducing Hippocampal Hyperactivity in Patients With Mild Cognitive Impairment
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Tipo di studio
Tipo di studio
Iscrizione (Effettivo)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
-
-
Canton of Bern
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Bern, Canton of Bern, Svizzera, 3000
- Universitäre Psychiatrische Dienste Bern
-
-
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Descrizione
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)
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
|
Sperimentale: 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.
|
|
Sperimentale: 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.
|
|
Sperimentale: 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.
|
|
Comparatore attivo: 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.
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Hippocampal activity during the pattern separation task
Lasso di tempo: 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.
|
We assess hippocampal activity 4 times from baseline until the last assessment (approximately 10 weeks later).
|
Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Pattern completion errors
Lasso di tempo: 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.
|
We will assess pattern completion errors 4 times from baseline until the last assessment (approximately 10 weeks later).
|
|
Pattern Separation success
Lasso di tempo: We will asssess pattern separation success 4 times from baseline until the last assessment (approximately 10 weeks later).
|
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).
|
|
Lure Discrimination Index
Lasso di tempo: 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).
|
Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Investigatore principale: Jessica Peter, Professor, University Hospital of Old Age Psychiatry and Psychotherapy
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Inizio studio
Completamento primario (Effettivo)
Completamento primario
Completamento dello studio (Effettivo)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- 50089
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