- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT01588197
Real-Time fMRI Feedback Effects on Pain Perception
Panoramica dello studio
Stato
Condizioni
Descrizione dettagliata
Tipo di studio
Iscrizione (Effettivo)
Fase
- Non applicabile
Contatti e Sedi
Luoghi di studio
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South Carolina
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Charleston, South Carolina, Stati Uniti, 29425
- Medical University of South Carolina
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Healthy adults ages 18-65
Exclusion Criteria:
- Clinical depression
- Anxiety
- Substance dependence or chronic pain
- Ferrous metal implants
- Cardiac pacemakers or other implanted medical devices that might be adversely impacted by the MRI scanner magnetic field
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Altro
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Armi e interventi
Gruppo di partecipanti / Arm |
Intervento / Trattamento |
|---|---|
|
Sperimentale: ACC Real Time fMRI Feedback
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel). Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy. The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the rACC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display. |
One of three Cognitive Pain Inhibition Strategies.
The Participant will be instructed to attend away from the thermal stimulus (for example, to the other side of the body).
Vividly imagine they are somewhere else, or engage in a high-demanding mental task such as counting backward by 7's or completing math problems to distract from the experience
One of three Cognitive Pain Inhibition Strategies.
The Participant will be instructed to attempt to perceive the stimulus as a neutral sensory experience rather than pain.
Attempt to perceive the stimulus as low intensity rather than high intensity.
One of three Cognitive Pain Inhibition Strategies.
The Participant will be instructed to attempt to take control of their perception of the painful experience.
|
|
Sperimentale: PFC Real Time fMRI Feedback
Each participant will undergo thermal pain threshold assessments ten times using the Medoc Pathway System with MRI-compatible ATS Thermode (30mmX30mm; Medoc Inc, Israel).
Participants will be instructed to "focus on the thermal stimuli" for the first 5 trials, and to engage in three cognitive pain inhibition strategies (Attention/Distraction Strategy, Stimulus Quality/Severity Strategy, and the Control Strategy.
The participants will be randomly assigned to receive Real Time fMRI Feedback of inverse activation in the PFC after each pain/rest block during the last 3 fMRI scans in the form of two simple thermometer images on the in-scanner computer display.
|
One of three Cognitive Pain Inhibition Strategies.
The Participant will be instructed to attend away from the thermal stimulus (for example, to the other side of the body).
Vividly imagine they are somewhere else, or engage in a high-demanding mental task such as counting backward by 7's or completing math problems to distract from the experience
One of three Cognitive Pain Inhibition Strategies.
The Participant will be instructed to attempt to perceive the stimulus as a neutral sensory experience rather than pain.
Attempt to perceive the stimulus as low intensity rather than high intensity.
One of three Cognitive Pain Inhibition Strategies.
The Participant will be instructed to attempt to take control of their perception of the painful experience.
|
Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Average Unpleasantness
Lasso di tempo: Before and After fMRI Paradigm, an average of 2 hours
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All participants will undergo thermal pain threshold testing directly before (Baseline) and after MRI. Participants will be asked to rate pain unpleasantness, on a scale of 0-10, before the fMRI Paradigm (Baseline) and directly after the fMRI paradigm (after MRI). 0="no unpleasantness" and 10="worst unpleasantness imaginable" |
Before and After fMRI Paradigm, an average of 2 hours
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Average Pain Rating
Lasso di tempo: Before and After fMRI Paradigm, an average of 2 hours
|
All participants will undergo thermal pain threshold testing directly before (Baseline) and after MRI scan.Participants will be asked to rate painfulness of the thermal stimuli applied, on a scale of 0-10, before the fMRI Paradigm (Baseline) and directly after the fMRI paradigm (after MRI).
0="no pain" and 10="worst pain imaginable"
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Before and After fMRI Paradigm, an average of 2 hours
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Ability to Distract
Lasso di tempo: Before and After fMRI Paradigm, an average of 2 hours
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All participants will undergo thermal pain threshold testing before and after fMRI paradigm.
Participants will rate the ability to distract themselves from the thermal stimuli, on a scale of 0-10, before fMRI paradigm (Baseline) and after fMRI paradigm, 0="not able to distract at all" and 10="completely able to distract".
A Higher rating represents greater ability to distract from thermal pain stimuli.
|
Before and After fMRI Paradigm, an average of 2 hours
|
Collaboratori e investigatori
Investigatori
- Investigatore principale: Jeffery J Borckardt, PhD, Medical University of South Carolina
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Altri numeri di identificazione dello studio
- HR # 20270
Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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