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.
Acquired amputees
Aged 18-65 years
Using a prosthesis for at least six months
At least a primary school graduate
Individuals with congenital amputation
Those with phantom limb pain and/or sensation
Those with an open wound on the stump
Bilateral amputation
For the amputee group, orthotic prosthesis clinics will be contacted in various cities. In order to increase the number of participants, participants will be recruited from other cities outside Edirne. Priority will be given to cities with large populations, such as Istanbul and Ankara. Healthy volunteers will be collected within the city of Edirne.
Case-control
Cross-sectional
Not listed
Standardized Mini Mental State Test
: It is one of the tests used to assess cognitive impairment. It consists of 5 main topics including various areas of cognitive functioning such as time and space orientation, stored memory, attention and calculation, short-term memory, language (writing sentences, drawing shapes, reading and applying written instructions, etc.). It is aimed to minimize distraction by applying in a quiet environment where the participants are comfortable.
Edinburgh Hand Preference Inventory
It is a 10-item scale that assesses participants' dominant hand preference. The researcher directs the items to the participants and the participants are expected to answer "right", "partly right", "left", "partly left" or "I use both".
Clock Drawing Test
It is a test that assesses visual-motor functions, planning, sequencing, abstract thinking skills and visual spatial perception. Participants are given a 10 cm hollow circle on paper. Participants are asked to place all the numbers of the clock inside the circle and draw the hour and minute hands so that the hour and minute hands point to 10 minutes past 11.
Benton Line Orientation Test
It is a test used to measure the orientation component of visual spatial abilities. It consists of 5 practice tests and 30 test items. Participants who get at least 2 of the 5 practice tests correct will be directed to move on to the 30 test items. In this test, participants are asked to: Perceive which 2 lines in the lower part of the test item are in equal angle and direction with which two of the 11 lines in the upper part of the test item and mark the 2 numbers with the correct option.
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