The Use of Iambic Pentameter in the

world spatial displays, it also heightens curiosity about the nature of time limited
perceptual organization in computerized displays. Given the findings about exposure time
limits to user interface and the recent findings in studies of the time course reviewed
above, it seems logical to think that the time course of perceptual grouping should be
considered when designing user interface displays.
Current line of inquiry
What users perceive in time limited conditions may be more important, more
salient, and more usable than what designers perceive in unlimited exposure conditions.
Time limited task demands may call for a modification in user interface design, one that
focuses on recent discoveries in perceptual organization and, specifically, perceptual
grouping. Researchers in user interface design have found effects of grouping in
unlimited time exposure conditions that have guided the organization of buttons, pictures,
icons and text in user interface design (Card, 1982; Niemela & Saarien, 2000; Tullus
1981; Tullis, 1984; Tullus, 1986). These findings have paved the way for the
development of grouping and interface design principles (Bellcore, 1995; Bailey, 1982;
Card, 1982; Danchak, 1976; Galitz, 1985; Holden, Adolf & Williges & Williges, 1981;
Jones & Okey, 1997; Moore & Fitz, 1993; Stewart, 1976; Streveler & Wasserman, 1984;
Tullis, 1983; Tullis, 1988; Woolford, 1997). However, researchers in vision science have
found that grouping can occur in more than one way across time (Kurylo, 1997; Schulz,
2001; Schulz, 2002; Schulz et al., 2001; Schulz & Sanocki, 2003). These findings lead us
to question whether grouping can be perceived differentially at short and long durations
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