觸覺與視覺回饋對於連續按壓作業表現的影響

The Effects of Haptic Feedback and Visual Feedback on Sequential Keypresses Task Performance

林子翔(TZU-HSIANG LIN)

指導教授 ： 廖敏如

國立中正大學/社會科學院/心理學系/碩士(2016年)

摘要

本研究旨在探討傳統鍵盤與觸控裝置之間的觸覺回饋差異會如何影響使用者的連續按壓作業表現，以及此差異是否會影響使用者對於視覺回饋的倚賴程度。為了模擬使用者操作觸控螢幕時的觸覺感受，本研究製造出一個失去按鍵「下沉」與「彈回」功能的改造鍵盤。實驗流程則是參考Viciana-Abad等人（2010）的做法，讓受試者在電腦螢幕以及數字鍵盤上執行近似於賽門遊戲（Simon game）的連續按壓作業；實驗一要求使用傳統鍵盤以及改造鍵盤的受試者在不同難度（按壓四次、按壓六次）以及不同視覺回饋（有、無）的情境下執行連續按壓動作，首先螢幕上會呈現隨機的亮燈序列，接著受試者必須立即以記住的亮燈位置在數字鍵盤上進行回憶按壓；實驗二與實驗三則是針對高作業難度的情境，在實驗流程中加入保留測驗，要求受試者在立即回憶階段結束的5秒過後再次執行相同的連續按壓動作。
研究結果顯示，保留測驗會增加受試者在立即回憶階段的動作籌劃（motor program）時間，而且只有在低作業難度（實驗一）或是動作籌畫時間延長（實驗二）等程序記憶完整的情況下，觸覺回饋才會提升受試者的正確率；另一方面，當觸覺回饋充足時，受試者會使用視覺回饋執行連續按壓動作，這時候視覺回饋才能夠提升受試者的正確率。從本研究的結果可以得知，當裝置使用者熟悉自己要執行的動作程序，或是裝置會即時呈現視覺回饋時，傳統鍵盤會比觸控裝置更有可能提升使用者的連續按壓作業表現。

關鍵字

連續按壓 ； 視覺回饋 ； 觸覺回饋

並列摘要

The purpose of this study was to investigate how the haptical feedback from the conventional keyboard and the touch screen device may have different effects on the sequential keypresses task performance, and whether the different haptical feedbacks between these two devices may influence participants' dependence on visual feedback. In order to create the tactile sensation on a touch screen, a modified keyboard without the " press down" and "spring back" element was produced in this study. The present experiment followed Viciana-Abad et al.'s (2010) experiment procedure where participants performed a Simon game on a monitor and a digital keyboard. In experiment 1, the participants with the conventional keyboard or modified keyboard were asked to perform a sequential keypresses task under different levels of difficulty with or without visual feedback. Participants needed to recall and retyped a sequence of numbers after seeing them on the screen. Experiments 2 and 3 only tested for the condition of high level of difficulty. Participants were asked to additionally perform a retention test after 5 seconds of immediate recall.
The results showed that retention test caused participants to spend more time in motor program. Moreover, only under circumstances such as low level of task difficulty and prolonged motor program, the haptic feedback was seen to increase performance accuracy. On the other hand, visual feedback was shown to facilitate performance when there was sufficient haptic feedback. Overall, the present study showed that when there was immediate visual feedback and when participants knew well about the recalled sequence, the traditional keyboard was more likely to enhance the user’s performance.

並列關鍵字

haptic feedback ； sequential keypresses ； visual feedback

參考文獻

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