Augmented and virtual reality are poised to deliver the next generation of computing interfaces. To fully immerse users, it will become increasingly important couple visual information with tactile feedback for interactions world. Small wearable devices which approximate or substitute sensations in hands offer an attractive path forward. In this work, we present Tasbi, a multisensory haptic wristband capable delivering squeeze vibrotactile feedback. The device features novel mechanism...

Haptic feedback is known to enhance the realism of an individual's interactions with objects in virtual environments. Wearable haptic devices, such as vibrotactile sleeves or armbands, can provide a smaller and more lightweight form factor than gloves that be bulky cumbersome wearer. In this article, we present tactile squeeze bracelet interface (Tasbi), multimodal wristband radial forces around wrist along at six discrete locations band. Tasbi implements squeezing mechanism minimizes...

Robotic devices have been clinically verified for use in long duration and high intensity rehabilitation needed motor recovery after neurological injury. Targeted coordinated hand wrist therapy, often overlooked robotics, is required to regain the ability perform activities of daily living. To this end, a new coupled hand-wrist exoskeleton has designed. This paper details design module several human-related considerations made maximize its potential as device. The serial mechanism engineered...

As vibrotactile feedback systems become increasingly commonplace, their application scenarios are becoming more complex. In this article, we present a method of vibrotactor control that accommodates emerging design requirements, namely large arrays capable displaying complex waveforms. Our approach is based on through digital audio interfaces. We describe new open-source software and hardware package, Syntacts, lowers the technical barrier to rendering vibrations with audio. also tutorial...

Recent advances in extended reality (XR) technologies make seeing and hearing virtual objects commonplace, yet strategies for synthesizing haptic interactions with continue to be limited. Two design principles govern the rendering of believable intuitive feedback: movement through open space must feel “free” while contact stiff. Herein, a novel multisensory approach that conveys proprioception effort illusory visual feedback refers wrist, via bracelet interface, discrete continuous...

Robotic devices have been proposed to meet the rising need for high intensity, long duration, and goal-oriented therapy required regain motor function after neurological injury. Complementing this application, exoskeletons can augment traditional clinical assessments through precise, repeatable measurements of joint angles movement quality. These measures assume that are making accurate with a negligible effect on movement. For coupled coordinated joints wrist hand, validity these two...

Most widespread haptic feedback devices for augmented and virtual reality (AR/VR) fall into one of two categories: simple hand-held controllers with a single vibration actuator, or complex glove systems several embedded actuators. In this work, we explore on the wrist interacting objects. We use Tasbi, compact bracelet device capable rendering multisensory squeeze vibrotactile feedback. Leveraging Tasbi's rendering, using standard visual audio head mounted display, present interactions that...

Haptic devices have a high potential for delivering tailored training to novices. These can simulate forces associated with real-world tasks, or provide guidance that convey task completion and learning strategies. It has been shown, however, providing both simultaneously through the same haptic interface lead novices depending on guidance, being unable demonstrate skill transfer, wrong altogether. This paper presents novel solution whereby are relayed via kinesthetic interface, while...

In this paper, we investigate postural reinforcement haptics for mid-air typing using squeeze actuation on the wrist. We propose and validate eye-tracking based objective metrics that capture impact of user's experience, which traditional performance like speed accuracy are not able to capture. To end, design four wrist-based haptic feedback conditions: no haptics, vibrations keypress, squeeze+vibrations posture + keypress. conduct a text input study with 48 participants compare conditions...

There is much interest in using haptic feedback for training new skills or guiding human movement. However, the results of studies that have incorporated guidance to train are mixed, depending on task complexity and method by which implemented. Subjects show dependency forces difficulty discerning aspects related dynamics meant convey completion strategies. For these reasons, methods separate cues from needed. In this experiment, 30 subjects completed a trajectory following wrist exoskeleton...

Most widespread haptic feedback devices for augmented and virtual reality (AR/VR) fall into one of two categories: simple hand-held controllers with a single vibration actuator, or complex glove systems several embedded actuators. In this work, we explore on the wrist interacting objects. We use Tasbi, compact bracelet device capable rendering multisensory squeeze vibrotactile feedback. Leveraging Tasbi's rendering, using standard visual audio head mounted display, present interactions that...

Haptic devices enable multi-modal feedback to a user when training perform novel motor skills in controlled, virtual environments. has been proposed as means provide additional guidance cues that might improve efficacy; however, recent studies have identified drawbacks haptic guidance, including reliance on forces and an inability distinguish between are part of the environment those communicate task completion strategies. Recently, we approach providing separates forces. We used kinesthetic...

The improvement of movement smoothness over the course therapy is one positive outcomes observed during robotic rehabilitation. Although movements are generally robust to disturbances, certain perturbations might disrupt an individual's ability produce these smooth movements. In this paper, we explore how a rehabilitation robot's inherent dynamics impact pointing tasks. Able-bodied participants made wrist under four different operating conditions. Despite relative transparency device,...