Brain Oscillations and Neural States (PHAROS)
3. juni 2026 opdateret af: IRCCS San Camillo, Venezia, Italy
Relationship Between Brain Oscillations and Neural States
The study aims to investigate, through the use of electroencephalography (EEG), instantaneous brain states, namely rapid oscillations of the brain's electrical activity, and their relationship with behavior and brain functions. The study will focus on three main objectives: (1) establishing a relationship between brain oscillations and behavior; (2) establishing a relationship between brain oscillations and brain functions, in terms of neural responsiveness; and (3) identifying the different phases of brain oscillations and investigating any related modulations of behavior and brain functions.
PHAROS will combine EEG with transcranial magnetic stimulation (TMS) to investigate and modulate brain states non-invasively.
Studieoversigt
Status
Afsluttet
Betingelser
Intervention / Behandling
Undersøgelsestype
Interventionel
Tilmelding (Faktiske)
30
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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Venice-Lido, Italien
- IRCCS San Camillo Hospital, Venice, Italy
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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
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Ja
Beskrivelse
Inclusion Criteria:
- Healthy adults
Exclusion Criteria:
- Left-handedness (assessed through the Oldfield test)
- Diagnosis of neurological or psychiatric disorders
- Vision problems that prevent reading, not correctable with lenses
- Diagnosis of substance dependence on drugs or alcohol
- Presence of hearing aids/prostheses
- Diagnosis of epilepsy or family history up to the second degree with it
- Episodes of febrile convulsions or recurrent fainting
- Head trauma
- Presence of surgical clips or metal implants in the head
- Diagnosis of heart disease
- Presence of a cardiac pacemaker or artificial heart valve
- Presence of hearing aids/prostheses
- Hearing problems or tinnitus
- Vision problems not corrected with lenses (such as color blindness)
- Taking tricyclic antidepressant medications
- Taking neuroleptic medications
- Diagnosis of headache or migraine
- Taking more than 3 alcoholic units in the last 24 hours
- Taking 2 or more cups of coffee or caffeine from other sources in the last 2 hours
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: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Enkelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
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Eksperimentel: Real motion
Participants will be asked to perform a possible motor imagery task: imagining an abduction movement of the right index finger.
Each session will consist of three blocks, counterbalanced across participants.
During these blocks, single TMS pulses will be delivered at different phases of the EEG oscillation: positive peak, negative peak, and random phase, the latter serving as the control condition.
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Imagining an abduction movement of the right index finger
Imagining the right index finger remaining still, which will serve as the control condition
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Sham-komparator: No motion
Participants will be asked to perform a possible motor imagery task: imagining the right index finger remaining still, which will serve as the control condition.
Each session will consist of three blocks, counterbalanced across participants.
During these blocks, single TMS pulses will be delivered at different phases of the EEG oscillation: positive peak, negative peak, and random phase, the latter serving as the control condition.
|
Imagining an abduction movement of the right index finger
Imagining the right index finger remaining still, which will serve as the control condition
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Motor-evoked potential
Tidsramme: Baseline
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Motor-evoked potentials (MEPs) will be recorded from the right index-finger abductor muscle following single-pulse TMS delivered over the primary motor cortex.
MEPs will be used as an index of corticospinal excitability.
The main outcome measure will be the peak-to-peak MEP amplitude, calculated as the difference between the maximum and minimum EMG signal within the post-stimulation time window.
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Baseline
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Motor-evoked potential
Tidsramme: Immediately after the intervention
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Motor-evoked potentials (MEPs) will be recorded from the right index-finger abductor muscle following single-pulse TMS delivered over the primary motor cortex.
MEPs will be used as an index of corticospinal excitability.
The main outcome measure will be the peak-to-peak MEP amplitude, calculated as the difference between the maximum and minimum EMG signal within the post-stimulation time window.
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Immediately after the intervention
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TMS-evoked potential
Tidsramme: Baseline
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TMS-evoked potentials (TEPs) will be recorded using EEG following single-pulse TMS.
TEPs will be used as an index of cortical responsiveness to stimulation.
The main outcome measures will be the amplitude and latency of the main TEP components within predefined post-stimulation time windows.
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Baseline
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TMS-evoked potential
Tidsramme: Immediately after the intervention
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TMS-evoked potentials (TEPs) will be recorded using EEG following single-pulse TMS.
TEPs will be used as an index of cortical responsiveness to stimulation.
The main outcome measures will be the amplitude and latency of the main TEP components within predefined post-stimulation time windows.
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Immediately after the intervention
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Samarbejdspartnere og efterforskere
Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.
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 (Faktiske)
1. oktober 2025
Primær færdiggørelse (Faktiske)
26. februar 2026
Studieafslutning (Faktiske)
26. februar 2026
Datoer for studieregistrering
Først indsendt
3. juni 2026
Først indsendt, der opfyldte QC-kriterier
3. juni 2026
Først opslået (Faktiske)
9. juni 2026
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
9. juni 2026
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
3. juni 2026
Sidst verificeret
1. juni 2026
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- 2024.01
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