知覚—運動の観点からの手の動作の分析

Analysis of normal hand movement for perceptual-motor skills

要旨：手の動作を知覚—運動の観点から分析した．動作課題は，国語辞典に目的動作の最小単位となる他動詞に掲載されている例文や対象物から131種を選定した．データ収集は各課題を12名の作業療法士が体験し，その知覚—運動過程の口述内容をカードに書き出し類似性を整理した後，それを文章化した．このデータを基に共通要素を分析し小群を作り，さらに小群に共通する特徴を集め中群を作り定義を与えた．そして中群の共通性を分析し大群を作成し定義と名称を与えた．結果，36の小群と14の中群，6の大群を得た．大群の名称は，収束・拡散・分離・変容・維持・移動とした．この手の動作の分析を作業活動の分析や段階付けに利用したいと考える．

　Hand function was analyzed from a perceptual motor viewpoint. 131 kinds of activities that represent the smallest units of purposeful activities were selected from example sentences and subjects in a Japanese language dictionary. Each task was performed by 12 occupational therapists, their verbal comments on the perceptual motor process written on cards which were ordered for similarities and explained in sentences. Common elements were analyzed based on these data and put into the smallest categories. Again, from each category the special characteristics were collected in middlelevel categories and defined. Next, similarities between these middle categories were analyzed and grouped into the largest categories and defined and named. The results were 36 smallest, 14 middle and 6 largest categories. The 6 largest categories were named: gathering, spreading, separating, modifying, supporting and moving. We anticipate using this analysis of hand movement for analysis of and grading of activities.