Impact of Transcranial Direct Current Stimulation on Language Functions in Mild Cognitive Impairment (STIMCI)
20. august 2013 opdateret af: Marcus Meinzer, Charite University, Berlin, Germany
Impact of Transcranial Direct Current Stimulation on Language Functions in Mild Cognitive Impairment: A Proof-of-principle Study and Neural Correlates
The purpose of this study is to determine if non-invasive electrical brain stimulation can improve word-retrieval in Mild Cognitive Impairment (MCI).
Studieoversigt
Detaljeret beskrivelse
Previous studies showed that anodal transcranial direct current stimulation (atDCS) can have beneficial effects on word-retrieval in healthy younger and older subjects.
The present study aims to extend these findings by assessing whether atDCS can also improve known impairments of word-retrieval in Mild Cognitive Impairment.
atDCS will be applied to the left inferior frontal gyrus in a sham controlled cross-over within subjects design.
Simultaneous functional magnetic resonance imaging (fMRI) will assess underlying neural effects of the stimulation.
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
18
Fase
- Ikke anvendelig
Kontakter og lokationer
Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.
Studiesteder
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Berlin, Tyskland, 10117
- Charite University Medicine, Department of Neurology
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Deltagelseskriterier
Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.
Berettigelseskriterier
Aldre berettiget til at studere
45 år til 86 år (Voksen, Ældre voksen)
Tager imod sunde frivillige
Ingen
Køn, der er berettiget til at studere
Alle
Beskrivelse
Inclusion Criteria:
- right handed
- German native speakers
- clinical diagnosis of Mild Cognitive Impairment
Exclusion Criteria:
- dementia
- other current or previous neurological or current psychiatric diseases
- alcohol or drug abuse
- MRI contraindication (e.g., magnetic metal, pacemaker, claustrophobia
Studieplan
Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Grundvidenskab
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Tredobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Eksperimentel: anodal tDCS
anodal tDCS will be administered for 20 minutes with 1 milliampere (1 mA) to the left inferior frontal gyrus
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anodal tDCS will be delivered with a constant current of 1 mA during resting-state and task-related fMRI and will continue until the end of the word-generation task.
For both stimulation conditions (atDCS, sham) the current will be initially increased in a ramp-like fashion over 10 s, eliciting a tingling sensation on the scalp that fades over seconds.
During sham stimulation the current will be turned off after 30 s.
Andre navne:
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Sham-komparator: sham tDCS
sham tDCS will be administered to the left inferior frontal gyrus
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anodal tDCS will be delivered with a constant current of 1 mA during resting-state and task-related fMRI and will continue until the end of the word-generation task.
For both stimulation conditions (atDCS, sham) the current will be initially increased in a ramp-like fashion over 10 s, eliciting a tingling sensation on the scalp that fades over seconds.
During sham stimulation the current will be turned off after 30 s.
Andre navne:
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
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Number of correct responses during word-generation tasks (max. 60)
Tidsramme: Change in number of correct responses between Assessment 1 (week 1) and Assessment 2 (week 2), assessments 1 and 2 are seperated by one week
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Subjects are assessed in a cross-over design.
The primary outcome measure will be assessed twice in each subject, either during sham stimulation or active stimulation with transcranial direct current stimulation.
Order of stimulation (sham, atDCS or atDCS, sham) will be counterbalanced across the group.
The study design has been described in detail before (Meinzer et al., 2012, Journal of Neuroscience, 32:1859 -1866).
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Change in number of correct responses between Assessment 1 (week 1) and Assessment 2 (week 2), assessments 1 and 2 are seperated by one week
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Sekundære resultatmål
Resultatmål |
Tidsramme |
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Neural activity during word-generation task assessed by functional magnetic resonance imaging (fMRI)
Tidsramme: Change in fMRI activity between Assessment 1 (week 1) and Assessment 2 (week 2), assessments 1 and 2 are seperated by one week
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Change in fMRI activity between Assessment 1 (week 1) and Assessment 2 (week 2), assessments 1 and 2 are seperated by one week
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Agnes Flöel, MD, Charite University Medicine, Department of Neurology
Datoer for undersøgelser
Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.
Studer store datoer
Studiestart
1. december 2012
Primær færdiggørelse (Faktiske)
1. juli 2013
Studieafslutning (Faktiske)
1. juli 2013
Datoer for studieregistrering
Først indsendt
14. januar 2013
Først indsendt, der opfyldte QC-kriterier
16. januar 2013
Først opslået (Skøn)
18. januar 2013
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
22. august 2013
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
20. august 2013
Sidst verificeret
1. august 2013
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- FL379101
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .