Signaling system designers are leveraging the tactile modality to create alarms, alerts, and warnings. Thepurpose of this research was to map detection reaction times (RT) toward tactile stimuli with variousparameter manipulations. We employed a 3 (wave form) × 3 (inter-pulse interval) × 3 (envelope) withinsubjects design. The dependent measure was detection RT. Twenty participants (15 female) responded to270 tactile stimuli. ANOVAs indicated three two-way interactions. Generally, shorter inter-pulse intervalsled to quicker RT and the fade-in envelope led to longer RT, when compared to envelopes starting at themaximum amplitude. Square and sinusoidal waves tended to prompt quicker RT than the noise wave. Thestrength of these relationships, however, depended upon the presence of the other parameters. Designerscan use the results of this study to effectively and appropriately assign tactile parameter manipulations tosignals that require varied levels of response urgencies.
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