The Use of Iambic Pentameter in the

In review these findings, it becomes clear that exposure time is a critical factor to
consider when determining the perceived organization of spatial displays. It is important
to note that with the exception of the stimuli of Gulick and Stake (1957), all of the stimuli
detailed in the previously mentioned time course experiments were presented on
computer monitors. The results of these experiments should therefore bear some
information on how humans perceive and group elements presented on computerized
interface displays. Further, research by Bruno, Domini and Bertamini (1997) suggests
that varying exposure durations to pictorially presented displays (such as computerized
displays) can have a much different effect on organization than varying exposure duration
to displays that include binocular parallax (such as real world scenes). Bruno et al.
compared the time course of amodal completion in pictorial and binocular parallax
displays. This research followed research conducted by Sekuler and Palmer (1992) who
found evidence for a pre-completion interpretation (i.e., incomplete shape) of pictorially
presented amodal completion displays when stimuli were shown for less than 200ms.
When presenting displays pictorially, Bruno et al. found evidence for the perception of a
pre-completion interpretation of the stimuli at 100ms stimulus durations. This result was
consistent with the results obtained by Sekuler and Palmer. However, inconsistent with
previous pictorial research, the perception of a pre-completion interpretation of the
stimuli was not found when similar displays were presented under the condition of
binocular parallax. Bruno et al. concluded that Sekuler and Palmer’s early pre-completion
result might have been obtained because pictorial displays were used. While this finding
may have raised questions about the generality of the Sekular and Palmers’ result in real
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