Skip to content

Effects of Expectations on Hypoalgesia Produced by Mental Practice

Evaluation of the Influence of Cognitive Variables in Hypoalgesia Generated by Motor Imagery: A Randomized Controlled Trial

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04621162
Enrollment
90
Registered
2020-11-09
Start date
2020-12-30
Completion date
2021-07-30
Last updated
2020-11-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cognitive Change

Keywords

Motor imagery

Brief summary

The main objective of this research work is to evaluate and quantify the hypoalgesia generated by motor imagery influenced by the presence of expectations.

Interventions

BEHAVIORALPositive Expectations (initial)

A positive expectation of the effect of motor imagery will be given before beginning the mental practice of imagination. This task will generate hypoalgesia

BEHAVIORALNegative Expectations (initial)

A negative expectation of the effect of motor imagery will be given before beginning the mental practice of imagination. This task will not generate hypoalgesia

BEHAVIORALNeutral Expectations (initial)

This group will act as a control. No expectations will be given that will influence the participant.

BEHAVIORALPositive Expectations (during intervention)

A positive expectation will be given during the performance of the mental practice. This is working very well

BEHAVIORALExperimental: Negative Expectations (during intervention)

A negative expectation will be given during the performance of the mental practice. This is working very bad

BEHAVIORALNeutral Expectations (during intervention)

This group will act as a control. No expectations will be given that will influence the participant.

Sponsors

Centro Universitario La Salle
CollaboratorOTHER
Universidad Autonoma de Madrid
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Age between 18 and 60 * Healthy and with no pain subjects

Exclusion criteria

* Any cognitive impairment that hindered viewing of audiovisual material. * Difficulty understanding or communicating. * Presence of systemic pathology, Central Nervous System or rheumatic disease. * Inadequate understanding of the Spanish language to follow instructions for measuring and treatment. * Collaboration of pregnant women. * Underage subjects * Subjects with pain at the time of the study.

Design outcomes

Primary

MeasureTime frameDescription
Pain pressure thresholdChange from baseline and immediately post-interventionPressure Pain Threshold (PPT) is one of these tests and it is defined as the minimum force applied which induces pain. The measurement shall be carried out by using an algometer (pressure device that induces mechanical stimuli) is to standardize the amount of pressure applied in the neck region. The reliability of pressure pain thresholds according to raters or measurement frequencies is relatively high.
Thermal thresholdChange from baseline and immediately post-interventionThis variable will evaluate three aspects. Cold detection threshold, heat detection threshold and heat pain threshold. A specialized and validated instrument is used which consists of a sensor with a resistance that raises and lowers the temperature in a controlled way between 20 and 50ºC.
Heart RateChange from baseline and immediately post-interventionHeart Rate will be measured by three electrodes located in the left area of the chest. One of the electrodes is placed in the middle zone while a second electrode is positioned on the lateral side, and a third one on the lower left side, below the first electrode.

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026