재활치료과학 (Therapeutic Science for Rehabilitation)

  • 제8권1호
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  • Pages.51-62
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  • 2019
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  • 2635-9340(pISSN)
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  • 2671-4329(eISSN)
대한신경계작업치료학회 (Korean Society of Neurological Occupational Therapy)
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고령자를 위한 실감객체기반 인지재활 시스템의 개발과 사용성 연구

Development and Usability of a Cognitive Rehabilitation System Based on a Tangible Object for the Elderly

  • 박상미 (연세대학교 일반대학원 작업치료학과) ;
  • 원경아 (연세대학교 일반대학원 작업치료학과) ;
  • 신윤찬 (연세대학교 일반대학원 작업치료학과) ;
  • 박지혁 (연세대학교 보건과학대학 작업치료학과)
  • Park, Sangmi (Dept. of Occupational Therapy, Graduate School of Yonsei Univerisy) ;
  • Won, Kyung-A (Dept. of Occupational Therapy, Graduate School of Yonsei Univerisy) ;
  • Shin, Yun-Chan (Dept. of Occupational Therapy, Graduate School of Yonsei Univerisy) ;
  • Park, Ji-Hyuk (Dept. of Occupational Therapy, College of Health Science, Yonsei University)
  • 투고 : 2019.01.11
  • 심사 : 2019.01.31
  • 발행 : 2019.02.28
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초록

목적: 본 연구의 목적은 다양한 인지기능 수준을 가진 고령자를 위한 실감객체 기반 인지재활시스템을 개발하고, 사용성을 검증하는 것이다. 방법: 사용성 연구는 시스템의 강점과 약점을 확인하기 위해 15명의 환자 집단과 4명의 작업치료사 집단에 설문조사를 실시하였으며 응답에 근거한 수정을 통해 시스템을 보완 및 개선하였다. 응답자들은 세 종류의 훈련-실행기능 훈련, 기억력 훈련, 집중력 훈련을 20분~30분간 경험해본 후, 구조화된 설문에 응답하였으며 설문의 영역은 각 훈련 영역별 콘텐츠, 중앙처리장치이자 화면 제시 매체인 태블릿 PC 및 실감객체를 포함하는 하드웨어, 시스템 이용에 따른 만족도로 구성되었다. 결과: 설문 응답 결과 환자 집단과 작업치료사 집단 모두에게 가장 흥미로웠던 영역은 실행기능으로 나타났고 가장 흥미롭지 않은 영역은 집중력으로 나타났다. 하드웨어 사용성 설문에서 태블릿 PC의 화면의 크기가 부적절하다는 응답이 6건, 실감객체의 크기가 부적절하다는 응답이 5건으로 나타났다. 시스템 이용에 대한 만족도 설문에서 전체 응답자의 40%가 시스템에 만족하는 것으로 응답하였다. 결론: 본 시스템은 훈련과제를 수행하기 위해 필요한 실감객체 도구의 조작이 용이하다는 점과 사용자의 요구에 따라 인지훈련의 영역을 쉽게 선택하여 훈련할 수 있다는 점, 사용자의 수행도에 의해 난이도가 자동으로 조정된다는 점을 특징으로 갖는다. 본 시스템에서 입력장치로 사용되는 실감객체도구는 양손에 쥐고 사용함으로써 훈련환경을 자연스러운 일상에서의 도구 사용과 유사하도록 고안하였다. 본 시스템은 지역사회 인지 재활전문가 부족의 대안으로 사용가능 할 것으로 기대된다.

Objective: To develop and verify the usability of a cognitive rehabilitation system with diverse cognitive functional levels based on tangible objects for the elderly population. Methods: A study was conducted to investigate the system's strengths and weaknesses by upgrading it with responses from two groups of 15 patients and 4 occupational therapists. After undergoing three forms of training - regarding executive function, memory, and concentration for a total of 20-30 min, the participants were asked to answer a structured questionnaire about contents of the three forms of training, hardware including the tablet PC functioning as a CPU and display media and tangible objects, and satisfaction of experiential usage of the system. Results: Both groups responded that the most interesting training area was executive function while the least interesting was concentration. Six participants reported that the size of the screen of the tablet PC was inappropriate, and five responded that the size of the tool was inappropriate. All therapists and 40% of the patients responded that they were satisfied with this system. Conclusion: This system's features include easy manipulation of tangible tools for performing training tasks, easy selection of and training in cognitive areas based on users' needs, and automatic adjustment of difficulty level based on users' performance. The training environment was designed to be similar to the natural environment by using tangible objects in both hands as input devices for the system, and the system was considered as an alternative to the lack of community cognitive rehabilitation specialists.

키워드

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Figure 1. Examples of Tangible Object Identification Media

Table 1. Categories and Questions of the System

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Table 2. General Characteristics of the Participants

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Table 3. Results from Questions about System Contents

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Table 4. Results from Questions about System Hardware

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