Sunday, October 15
1:30 PM-2:00 PM
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Effective Design for Decreasing Cognitive Load on the Small Screen of PDA

Full Paper ID: 17465
  1. aaa
    Jeeheon Ryu
    Chonnam National University
  2. Minjeong Kim
    Hanyang University

Abstract: The purpose of this study was to examine how presentation format of text in a small screen of PDA had an impact on cognitive load when a user was reading and summarizing a reading text. Two presentation formats, 1) page-turn and 2) scrolling, were examined in reading and problem solving task with PDA. The page-turn format has a page-turn button without any scrolled text, and the scrolling format has a scroll bar to read. Dual-task was applied to this experiment to measure Reaction Time (RT) to an audio signal for a secondary task as a direct indicator of cognitive load. Twenty Korean undergraduate students (25% Male and 75% Female) participated to this study. There was no significant difference of RT between page-turn and scrolling in the reading session. However, RT in the scrolling format of the problem solving session was significantly increased. This result indicated that a user of PDA needs more cognitive efforts to assemble information in a page-turn format.

Presider: Philip Barker, University of Teesside

Topic

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