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ACTIVITY ANALYSIS OF SELECT UPPER EXTREMITY TASKS.

The following examples illustrate the complexity of upper extremity

function and should assist in the evalua-tion process.

Reaching Task

The reaching task described requires the patient to reach for a book on

a shelf that is at forehead level.First and foremost,initiation of any

movement pattern requires a motivational drive to perform;therefore the activity must have an inherent purpose.The motivation behind and

purpose of this activity may be to further knowledge,enhance leisure

time,or pass a midterm examination.To complete this activity

successfully,the patient must process appropriately the

visual/perceptual information collected during the scanning process

before initiating the reach pattern.

Because the item is above eye level,neck extension with concurrent

right and left lateral head and neck rotation and sufficient ocular range

of motion (ROM)are required.A person collects a variety of visual

information during visual scanning that helps identify particular

characteristics of the book(e.g.,call num-ber,title,color,and size).

This information is inter-preted by several visual/perceptual processes

(e.g.,figure ground,color discrimination,and depth perception)(see Chapters 16 and 18).

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    對精選的上限任務的活动分析。 以下例子說明上限的複雜 起作用並且應該協助在评价程序中。 到達任務 被描述的到達的任務需要患者為書到達 在前額水平的架子。首要,其中任一的啟蒙 運動樣式要求誘導驅動執行; 因此活動必须有一個固有目的。這活動的刺激後面和目的也許是到进一步知識,提高休閒时间或者消磨一個期中考试。完成這活動 順利地,患者必须適當地處理 在掃描過程期間收集的信息視覺或感知在創始伸手可及的距離樣式之前。由于項目在观察水平之上,與併發的脖子引伸 正确和左側向頭和脖子自轉和充足的視覺範圍行動(ROM)需要。人收集各種各樣視覺在幫助辨認特殊性的視覺掃描期間的信息 書(即,索书号、標題、顏色和大小)的特徵。這信息是由幾個視覺或感知過程解釋的 (即,圖地面,色辨别和深度知觉) (参见第16章和第18章)。

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