  Leveraging the perceptual phenomenon of crossmoal correspondence has been
shown to facilitate peoples information processing and improves sensorimotor
performance. However for goal-oriented interactive tasks, the question of how
to enhance the perception of specific Crossmodal information, and how
Crossmodal information integration takes place during interaction is still
unclear. The present paper reports two experiments investigating these
questions. In the first experiment, a cognitive priming technique was
introduced as a way to enhance the perception of two Crossmodal stimuli, in two
conditions respectively, and their effect on sensory-motor performance was
observed. Based on the results, the second experiment combined the two
Crossmodal stimuli in the same interfaces in a way that their correspondence
congruency was mutually exclusive. The same priming techniques was applied as a
manipulating factor to observe the Crossmodal integration process. Results
showed that first, the Crossmodal integration during interaction can be
enhanced by the priming technique, but the effect varies according to the
combination of Crossmodal stimuli and the types of priming material. Moreover,
peoples subjective evaluations towards priming types were in contradiction with
their objective behavioural data. Second, when two Crossmodal sequences can be
perceived simultaneously, results suggested different perceptual weights are
possessed by different participants, and the perceptual enhancement effect was
observed only on the dominant one, the pitch-elevation. Furthermore, the
Crossmodal integration tended to be integrated in a selective manner without
priming. These results contribute design implications for multisensory feedback
and mindless computing.
