Rubber Hand Illusion in Anorexia Nervosa (RHI_size_AN)

August 20, 2025 updated by: Istituto Auxologico Italiano

Rubber Hand Illusion in Anorexia Nervosa: the Role of Hand Dimensions and Physical Appearance

The present research project aims to verify a possible difference in the recalibration of the real hand position (i.e. proprioceptive drift) in relation to the dimensions of the plastic hand in the Rubber Hand Illusion, among a group of female participants with anorexia nervosa compared with a normal weight control group.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

28

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Italy
    • VCO
      • Piancavallo, VCO, Italy, 28824
        • IRCCS Istituto Auxologico Italiano - Ospedale San Giuseppe

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

Yes

Sampling Method

Non-Probability Sample

Study Population

Participants with anorexia nervosa will be recruited at the beginning of a rehabilitative treatment at the Istituto Auxologico Italiano, IRCCS, San Giuseppe Hospital (Italy). Controls will be recruited out of the hospital.

Description

Inclusion criteria:

  • Right-handed
  • diagnosis of Anorexia Nervosa according to the APA criteria

Exclusion criteria:

• concurrent neurological, neurodevelopmental (e.g., autism), motor, somatosensory and/or psychiatric disorders.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Controls
Not-hospitalized participants with a healthy weight
Other: Rubber Hand Illusion
The traditional behavioural illusion of the Rubber Hand will be applied
Cases
Participants with Anorexia Nervosa
Other: Rubber Hand Illusion
The traditional behavioural illusion of the Rubber Hand will be applied

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Proprioceptive drift in centimeters
Time Frame: baseline
the recalibration of the real hand position towards the rubber hand
baseline

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Score at the Embodiment questionnaires
Time Frame: Baseline
the score relative to the questionnaire measuring the individual experience towards the illusion. The higher is the score, the higher is the sense of illusion explicitely reported by participants.
Baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Istituto Auxologico Italiano

Collaborators

University of Turin, Italy

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

April 1, 2023

Primary Completion (Actual)

March 30, 2024

Study Completion (Actual)

March 30, 2024

Study Registration Dates

First Submitted

February 28, 2024

First Submitted That Met QC Criteria

February 28, 2024

First Posted (Actual)

March 6, 2024

Study Record Updates

Last Update Posted (Estimated)

August 27, 2025

Last Update Submitted That Met QC Criteria

August 20, 2025

Last Verified

August 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 21C309

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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