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Due to the perceptual characteristics of the head, vibrotactile Head-mounted Displays are built with low actuator density. Therefore, vibrotactile guidance is mostly assessed by pointing towards objects in the azimuthal plane. When it comes to multisensory interaction in 3D environments, it is also important to convey information about objects in the elevation plane. In this paper, we design and assess...
We looked up to elements present in speech articulation to introduce the proactive haptic articulation as a novel approach for intercommunication. The ability to use a haptic interface as a tool for implicit communication can supplement communication and support near and remote collaborative tasks in virtual and physical environments. In addition, the proactive articulation can be applied during the...
Vibrotactile feedback is broadly used to support different tasks in virtual and augmented reality applications, such as navigation, communication, attentional redirection, or to enhance the sense of presence in virtual environments. Thus, we aim to include the haptic component to the most popular wearable used in VR applications: the VR headset. After studying the acuity around the head for vibrating...
Several studies evaluated vibrotactile stimuli on the head to aid orientation and communication. However, the acuity for vibration of the head's skin still needs to be explored. In this paper, we report the assessment of the spatial resolution on the head. We performed a 2AFC psychophysical experiment systematically varying the distance between pairs of stimuli in a standard-comparison approach. We...
In this paper, we look upon elements present in speech articulation to introduce proactive haptic articulation as a novel approach for communication in Collaborative Virtual Environments. We defend the hypothesis that elements present in natural language, when added to the design of the vibrotactile vocabulary, should provide an expressive medium for intercommunication. Moreover, the ability to render...
Communication is crucial in collaborative tasks. Multimodal strategies are commonly applied to complement, reinforce and disam-biguate information exchange. However, although multimodal communication is commonplace in Collaborative Virtual Environments, the proactive use of touch for intercommunication is surprisingly neglected regardless its importance for communication. In this paper, we look up...
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