Effects of location and presentation format of the secondary task on attentional boost effect

[Speaker] Horng, Ruey-yun:1
[Co-author] Fan, Ying-fang:1
1:National Chiao Tung University (Taiwan)

Performing a secondary task, such as signal detection, may enhance, rather than impair, the memory performance of the primary task. However, such attentional boost effects (ABE) were observed under a stringent condition. The purpose of this study was to release some of the constraints implicit in ABE studies: locations of the signal and randomness of locations in the signal detection task. In experiment I, the signals were presented in 9 preassigned locations with varying distance and direction from the fixation point. In experiment 2, signals were presented in the same 9 locations, but in random order. Seventy college students' data showed that ABE was observed regardless of the location of the signals and the randomness of the location. Furthermore, it was found that when attention was allocated to a remote visual region, detection of a distractor may also enhance memory of the primary task that was presented with a distractor.
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