- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT07560904
Non-invasive Stimulation of Deep Brain Structures to Modulate Working Memory (DEEPBRAIN)
A study investigating the effects of non-invasive electrical stimulation of deep brain structures on working memory, attention, and executive functions involved in everyday activities. Currently, there is no effective treatment for impairments in these functions. The study will evaluate the effects of non-invasive electrical stimulation in both healthy older adults and individuals with mild impairment of these functions.
The study combines magnetic resonance imaging (MRI) with non-invasive brain stimulation targeting deep brain structures. Its aim is to improve understanding of the neural mechanisms underlying these cognitive functions and their impairments, as well as to explore the mechanisms of non-invasive brain stimulation for potential future therapeutic applications.
Aperçu de l'étude
Statut
Les conditions
Type d'étude
Inscription (Estimé)
Phase
- N'est pas applicable
Contacts et emplacements
Coordonnées de l'étude
- Nom: Monika Pupíková
- Numéro de téléphone: +420549498818
- E-mail: monika.pupikova@ceitec.muni.cz
Lieux d'étude
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Brno, Tchéquie, 612 00
- Recrutement
- CEITEC Masaryk University
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Contact:
- Monika Pupíková
- Numéro de téléphone: +420549498818
- E-mail: monika.pupikova@ceitec.muni.cz
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Contact:
- E-mail: pupikovam@gmail.com
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Sous-enquêteur:
- Monika Pupíková
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
Inclusion Criteria:
- normal cognitive performance as assessed by a cognitive screening for healthy subjects
- possible or probable MCI-LB or with PD-MCI, collectively called MCI-LBD, described as: presence of PD , and level II criteria for MCI (i.e. based on comprehensive neuropsychological examination), or the level II criteria for MCI , and at least two of four core DLB features including parkinsonism, visual hallucinations, attention/cognitive function fluctuation, and REM sleep behavioral disorder, or at least 1 core clinical feature and 1 indicative biomarker (probable MCI-LB).
Exclusion Criteria:
- Psychiatric disorders including major depression, major vascular lesions, or other brain pathologies that might present with cognitive decline.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Science basique
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Tripler
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
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Expérimental: 20 Hz striatal stimulation
Striatum will be targeted by using two pairs of high-frequency tES with a low-frequency offset (20 Hz), creating an interference hotspot targeting the deep brain structure (deep-tES).
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Striatum will be targeted by using at least two pairs of high-frequency tES with a low-frequency (20 Hz) offset, creating an interference hotspot targeting the deep brain structure (deep-tES).
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Expérimental: 60 Hz striatal stimulation
Striatum will be targeted by using two pairs of high-frequency tES with a low-frequency offset (60 Hz), creating an interference hotspot targeting the deep brain structure (deep-tES).
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Striatum will be targeted by using at least two pairs of high-frequency tES with a low-frequency (60 Hz) offset, creating an interference hotspot targeting the deep brain structure (deep-tES).
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Comparateur factice: Sham striatal stimulation
Striatum will be targeted by using two pairs of high-frequency tES with no low-frequency offset.
The stimulation will be applied only shortly and turned off after ramp-up and ramp-down period.
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A high-frequency tES without low-frequency offset.
It will consist of two oscillatory high-frequency currents without any frequency shifts, which induces similar skin sensations as deep-tES and will be applied just for a ramp-up/ramp-down phases at the beginning of the stimulation and afterwards will be switched off.
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
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The neural underpinning of NIBS-induced changes quantified by task-fMRI activations
Délai: During intervention ( approximately 10 minutes)
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During intervention ( approximately 10 minutes)
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The neural underpinning of NIBS-induced changes quantified by network-based analytical approaches.
Délai: During intervention ( approximately 10 minutes)
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During intervention ( approximately 10 minutes)
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
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Working memory performance - Reaction times
Délai: During intervention (approx 10 minutes)
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Reaction times of an N-back task between the real and sham stimulation condition in a cross-over design.
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During intervention (approx 10 minutes)
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Working memory parformance - Accuracy
Délai: During intervention ( approximately 10 minutes)
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Accuracy (measured as D-prime) of an N-back task between the real and sham stimulation condition in a cross-over design.
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During intervention ( approximately 10 minutes)
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- NW25-04-00142
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
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