CI

At a glance

ClinicalIndex Comparison Record
N/ACompleted· 10 enrolled
Drug / intervention
Symbolic conditioning +3 morebehavioral
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04664400
NCT04664400N/ACompleted

Common and Distinct Mechanisms of Expectancy Effects Across Outcomes

Trustees of Dartmouth College·interventional·Posted Dec 11, 2020·Updated Apr 18, 2023

In Brief

A clinical study evaluating Symbolic conditioning, Conditioning, and 2 other interventions for Healthy. Completed, enrolled 10 participants across 1 site.

Detailed Summary

A behavioral study that will examine how pain perception is affected by different types of conditioning and by context, with a few participants and multiple sessions ("N-of-few" design).

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
ConditionsHealthy
CountriesUnited States

Timeline

N/ACompletedFinished
202120222023202420252026
First PostedDec 11, 2020
Enrollment StartJan 22, 2021
Primary CompletionMay 24, 2021
TodayJul 2, 2026
Enrollment to primary: 4 monthsPosted 5.6 years ago

Interventions

Symbolic conditioningbehavioral

Participants will learn associations between cues and thermal stimuli with varying temperatures (low vs. high) through symbolic conditioning (no actual heat stimuli, only pictures of thermometers)

Conditioningbehavioral

Participants will learn associations between cues and thermal stimuli with varying temperatures (low vs. high) from experience (with actual heat stimuli).

Instructionsbehavioral

Participants will learn associations between cues and thermal stimuli with varying temperatures (low vs. high) from verbal instructions.

Counterfactualbehavioral

Thermal stimuli will be either the better outcome or the worse outcome out of two possible outcomes.