- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT01588197
Real-Time fMRI Feedback Effects on Pain Perception
Visão geral do estudo
Status
Condições
Descrição detalhada
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
-
-
South Carolina
-
Charleston, South Carolina, Estados Unidos, 29425
- Medical University of South Carolina
-
-
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
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
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Outro
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
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.
|
|
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.
|
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.
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Average Unpleasantness
Prazo: Before and After fMRI Paradigm, an average of 2 hours
|
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
|
|
Average Pain Rating
Prazo: 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"
|
Before and After fMRI Paradigm, an average of 2 hours
|
|
Ability to Distract
Prazo: Before and After fMRI Paradigm, an average of 2 hours
|
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
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Jeffery J Borckardt, PhD, Medical University of South Carolina
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Outros números de identificação do estudo
- HR # 20270
Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .