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- Klinische proef 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.
Studie Overzicht
Toestand
Studietype
Inschrijving (Geschat)
Fase
- Niet toepasbaar
Contacten en locaties
Studiecontact
- Naam: Monika Pupíková
- Telefoonnummer: +420549498818
- E-mail: monika.pupikova@ceitec.muni.cz
Studie Locaties
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Brno, Tsjechië, 612 00
- Werving
- CEITEC Masaryk University
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Contact:
- Monika Pupíková
- Telefoonnummer: +420549498818
- E-mail: monika.pupikova@ceitec.muni.cz
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Contact:
- E-mail: pupikovam@gmail.com
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Onderonderzoeker:
- Monika Pupíková
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
- Volwassen
- Oudere volwassene
Accepteert gezonde vrijwilligers
Beschrijving
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.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Fundamentele wetenschap
- Toewijzing: Gerandomiseerd
- Interventioneel model: Crossover-opdracht
- Masker: Verdrievoudigen
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Experimenteel: 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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Experimenteel: 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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Sham-vergelijker: 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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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
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The neural underpinning of NIBS-induced changes quantified by task-fMRI activations
Tijdsspanne: 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.
Tijdsspanne: During intervention ( approximately 10 minutes)
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During intervention ( approximately 10 minutes)
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Working memory performance - Reaction times
Tijdsspanne: 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
Tijdsspanne: 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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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- NW25-04-00142
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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