- ICH GCP
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- Klinische Studie NCT01588197
Real-Time fMRI Feedback Effects on Pain Perception
Studienübersicht
Status
Bedingungen
Detaillierte Beschreibung
Studientyp
Einschreibung (Tatsächlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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South Carolina
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Charleston, South Carolina, Vereinigte Staaten, 29425
- Medical University of South Carolina
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Studienberechtigte Geschlechter
Beschreibung
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
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Sonstiges
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Keine (Offenes Etikett)
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
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Experimental: 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.
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Experimental: 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.
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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.
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
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Average Unpleasantness
Zeitfenster: 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
Zeitfenster: 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 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
Zeitfenster: 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.
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Before and After fMRI Paradigm, an average of 2 hours
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Mitarbeiter und Ermittler
Ermittler
- Hauptermittler: Jeffery J Borckardt, PhD, Medical University of South Carolina
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Tatsächlich)
Studienabschluss (Tatsächlich)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Schätzen)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Diese Informationen wurden ohne Änderungen direkt von der Website clinicaltrials.gov abgerufen. Wenn Sie Ihre Studiendaten ändern, entfernen oder aktualisieren möchten, wenden Sie sich bitte an register@clinicaltrials.gov. Sobald eine Änderung auf clinicaltrials.gov implementiert wird, wird diese automatisch auch auf unserer Website aktualisiert .
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