3-Dimensional Evaluation of Body Perception

Trakya University

Status: Not yet enrolling

Conditions: Executive Function (Cognition); Decision Making; Neurocognitive Function; Visuospatial/Perceptual Abilities; Body Image; Amputation; Cognition

Study type: Observational

Funder types: Other

Identifiers

NCT06985329

TÜTFGOBAEK 2025/20

Details and patient eligibility

About

The goal of this observational study is to evaluate the changing body perception of amputees aged 18-65 years using prostheses through different personal perspectives of the right-left distinction. In addition, we aimed to examine the relationship between possible changes in body perception and visual spatial perception and neurocognitive performances. The main questions that this study aimed to answer are as follows:

1. Is there a difference between the amputee group and the control group in terms of parameters related to body perception?
2. Is there a difference between the amputee group and the control group in terms of neurocognitive skills?
3. Is there any difference between the amputee group and the control group in terms of visual spatial perception abilities?

To examine whether changes in body perception in amputees affect neurocognitive performance, visuospatial perception and perspective perception and the relationship between them will be compared with a healthy control group.

The assessments to be applied to both groups can be summarised as follows:

• Demographic information such as age, gender, and education level will be recorded.
• Mini-mental state test will be used to assess the cognitive level.
• Edinburgh Handedness Scale will be used to determine the dominant side.
• Right-left discrimination and personal perspective perception will be assessed using a desktop programme.
• The clock drawing test and Benton line orientation test will be used to visual spatial perception.
• A computer based program called The Central Nervous System (CNS) Vital Signs Neurocognitive Test Battery will be used to asesses neurocognitive abilities.

Enrollment: 60 estimated patients

Sex: All

Ages: 18 to 65 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion criteria for the amputee group:

• Acquired amputees
• Aged 18-65 years
• Using a prosthesis for at least six months
• At least a primary school graduate
• Individuals who can adapt to prolonged, attention-demanding activities will be included.
• Standardised Mini Mental State Examination score of >24.

Following the recruitment of the amputee group, a healthy control group will be recruited to match it in terms of age, gender and educational status.

Inclusion criteria for the healthy control group:

• Age range: 18-65 years
• At least a primary school graduate
• Individuals who can adapt to prolonged, attention-demanding activities will be included.
• Standardised Mini Mental State Examination score of >24.

Exclusion criteria for the amputee group:

• Individuals with congenital amputation
• Those with phantom limb pain and/or sensation
• Those with an open wound on the stump
• Bilateral amputation
• Any neurological or psychiatric diagnosis
• Those using sedative medication and/or its derivatives
• Have vision and related problems
• Individuals who are illiterate
• Individuals participating in treatments targeting body representation (e.g. imagery-based treatments or progressive motor visualisation) will not be included in the study.

Exclusion criteria for the Healthy Control Group:

• Having any neurological or psychiatric diagnosis
• Using sedative medication and/or its derivatives
• People with vision and related problems
• Illiterate individuals will not be included in the study.

Trial design

60 participants in 2 patient groups

Amputee Group

Description:

Amputees between the ages of 18-65 who use prostheses will be included in the study. Participants who meet the inclusion criteria will be included in this group.

Control Group

Description:

A healthy control group will be recruited. This group will be matched in terms of age, gender, and educational status to the amputee group.