| Summary: | 碩士 === 國立中正大學 === 心理學系研究所 === 104 === 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.
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