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Functional Significance of Complexity Measures in the Sensory-motor Behavior

NCT02610647 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2025-11-19

No results posted yet for this study

Summary

The main objective of this study is to compare between groups the level of complexity of the estimated sensorimotor performance through multi-fractal (minmaxMF-DFA) exponents.

Conditions

  • Healthy Volunteers

Interventions

DRUG

Wrist anesthesia

Prior to the tapping test, regional anesthesia is performed in the form of sensory blocks distal to the wrist: injection of ropivacaine 7.5mg / ml is carried out successively in contact with three nerves (ulnar, median and radial) with a volume of 2 ml for nerve, for a total of 45mg.

OTHER

Blinding mask

Patients will don a mask that prevents them from seeing during the tapping test.

OTHER

Anti-noise helmet

Patients will don a helmet that prevents them from hearing during the tapping test.

OTHER

Tapping test

Subjects will be placed at a table in a sitting position where they will perform a rhythmic finger tapping test. The seat height is adjusted so that the front dominant arm rests comfortably on the table. Subjects will be equipped with headphones to receive auditory signals during a first synchronized phase of tapping. After the last auditory signal, participants will continue the tapping task by themselves as directed: "after the metronome stops,continue tapping the prescribed tempo as accurately and consistently as possible throughout the test." The movements of the index finger will be measured by a single-axis accelerometer (15 × 15 mm) attached to the nail.

Sponsors & Collaborators

  • Centre Hospitalier Universitaire de Nīmes

    lead OTHER

Principal Investigators

  • Kjerstin Torre, MD, PhD · Centre Hospitalier Universitaire de Nîmes

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2017-06-06
Primary Completion
2017-08-31
Completion
2017-08-31

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02610647 on ClinicalTrials.gov