Effects of Secondary Task’s Location and Presentation Format on Attentional Boost Effect

• Main Authors: Fan, Ying-Fang, 范瀠方
• Other Authors: Horng, Ruey-Yun
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/53980964466196935616

碩士 === 國立交通大學 === 工業工程與管理系所 === 104 === In dual task situation, performing a secondary task, such as a signal detection task, may enhance, rather than impair, the memory performance of the primary task. However, most attentional boost effects (ABE) were observed under a very stringent dual task research paradigm. The purpose of this study was to release some of the constraints implicit in ABE studies: presentation locations of the signal detect task and randomness in presentation locations of the signal detection task. In experiment I, instead of always presented in the fixation point, the stimuli in signal detection task were presented in 9 preassigned locations with varying distance and direction from the fixation point. In experiment 2, the stimuli of the signal detection task were presented in the same 9 locations as the experiment 1, but in random order. Seventy college students participated in the study. The results showed that ABE was observed regardless of the presentation location of the secondary task and the randomness of the presentation location. Furthermore, it was found that participant might have distributed more attention to signals that appeared outside the normal visual search region. When more attention was allocated to a remote visual region, detection of a distractor may also enhanced memory of the primary task that was presented along with a distractor.