The Use of Iambic Pentameter in the

and local grouping can change across time. Specifically, global grouping was
predominantly chosen in the shorter stimulus durations and a mixture of global and local
groupings were chosen in the longer exposure durations. These results suggest that
grouping may not be the static display property that designers once might have thought.
Rather, they suggest that grouping is quite a bit more complex and that perhaps time
limited task demands should be considered before display groupings are selected.
According to the results of the three pilot studies, when task demands limit exposure to
user interface displays, global groupings should be implemented.
The results of dissertation Experiment 1 reveal that global grouping can be more
salient than local grouping across prime duration. These results suggest that global
Gestalt groupings are should be incorporated into computerized displays because they are
more easily seen. The results of dissertation Experiment 2 reveal that when specific
grouping principles are depicted more globally, users can interact with displays more
quickly. These results also suggest that global grouping should be incorporated into user
interface displays to speed interaction.
One might notice that the advantages found for global grouping facilitation in
Experiment 1 and speed in Experiment 2 were not very large and varied only by
milliseconds. Based on this small difference, the incorporation of global grouping in
interface displays might not appear to make a dramatic difference on the usability. When
considering these ideas, it is important to not only think of the application of these results
in terms of the individual user. Instead, it is important to think of how these results could
apply to a user population. For example, the web-based email communication program
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