자율 제어 연습 일정은 여러 맥락에서 모터 학습을 강화하는 것으로 나타났지만, 결국 기본 구조나 규칙을 학습하는 것이 목표인 구조 학습 작업에서 그 효과는 잘 알려져 있지 않다. 여기서는 구조 학습을 필요로 하는 새로운 제어 인터페이스에서 자체 제어 관행의 사용을 조사했다. 또한, 우리는 과제 난이도의 변경이 스스로 선택한 전략에 영향을 미칠 수 있는지, 따라서 학습을 촉진할 수 있는지를 'nudging'의 효과를 조사했다. 참가자들은 상체에 4개의 관성측정장치(IMU)를 착용했으며, 상체의 움직임을 이용해 화면에 표시되는 다른 표적으로 화면 커서를 이동하는 것이 목표였다. 이 작업에서 학습해야 하는 구조는 IMU의 신호가 커서의 x 및 y 위치에 선형적으로 매핑된다는 사실에 기초했다. 참가자(N = 62)는 목표물을 연습할 수 있는 순서를 제어할 수 있는지 여부에 따라 3개 그룹(랜덤, 자체 선택, 넛지)으로 분할되었다. 참가자가 기본 구조를 학습했는지 테스트하기 위해, 참가자는 훈련 대상뿐만 아니라 훈련 중에 연습되지 않은 새로운 목표 모두에 대해 테스트되었다. 결과는 훈련 중 자율 선택 그룹이 임의 그룹에 비해 이동 시간이 짧은 것으로 나타났고, 자율 선택 그룹과 넛지 그룹 모두 반복하는 경향이 있는 전략을 채택한 것으로 나타났다. 그러나 테스트 단계에서 그룹 간 작업 성능에서 유의한 차이를 발견하지 못하여 구조적 학습이 실행 유형에 의해 신뢰성 있게 영향을 받지 않았음을 보여주었다. 또한, 과제 난이도를 조정하여 참가자를 밀치는 것은 전체 학습에 큰 이점을 보여주지 않았다. 이러한 결과는 자율 제어 연습이 연습 구조에 영향을 미치고 학습을 촉진했지만, 이 과제에서 무작위 스케줄에 따라 연습하는 것과 관련된 추가 이익을 제공하지는 않았음을 시사한다.
제 1편 : MATLAB 기본편
1. MATLAB 기본사용편 ···················· 003
1.1 MATLAB 시작하기 ·························· 003
명령창(command Window)에서의 입력 005
도움말(Help)의 이용 ······························· 007
1.2 입력 오류의 수정 ····························· 008
계산의 중지 ·············································· 009
MATLAB 종료하기 ································· 009
1.3 연산과 변수의 할당 ·························· 009
연산자 우선순위 ······································· 011
내장함수 ···················································· 012
1.4 데이터의 표현 ··································· 013
1.5 변수의 처리 ······································· 015
변수 이름 ·················································· 015
clear 명령어 ············································· 016
특수변수와 정수 ······································· 017
whos 명령어 ············································ 017
1.6 벡터와 행렬 ······································· 018
벡터 ··························································· 018
행렬 ·························································· 023
스크린 출력과 억제 ································· 024
1.7 랜덤(Random)수와 복소수 ·············· 025
랜덤 수 ····················································· 025
복소수 ······················································· 027
1.8 기호를 이용한 연산 ·························· 028
기호식에서의 치환 ··································· 029
1.9 코드 파일 ·········································· 030
스크립트 코드 파일 ································· 030
코멘트의 추가 ·········································· 032
함수 코드 파일 ···································· 033
사용자 정의함수 ······································ 036
1.10 간단한 그래프의 생성 ····················· 037
ezplot을 이용한 그래프 ·························· 037
plot을 이용한 그래프 ·························· 039
3차원 그래프 ··········································· 042
1.11 MATLAB과 엑셀(Excel)의 접속 043
엑셀 데이터 불러오기 ····························· 043
데이터 가져오기 옵션 ························· 046
스크립트 생성 옵션 ································· 049
함수 생성 옵션 ········································ 049
생성된 데이터를 엑셀파일로 저장하기 ·· 050
제 2편 : 연구논문
Self-controlled practice and nudging during structural learning of a
novel control interface
1. Introduction 51
2. Materials and methods 53
3. Results 56
4. Discussion 58
5. References 61
