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The present work focuses on perceptual control of haptic manipulation during high frequency interaction with mobile objects. In particular in this work we focused on the analysis of the control and perceptual issues in the throwing and catching in juggling. A training multimodal system that exploits the concepts of co-located visuo-haptic feedback and encountered interfaces was implemented. Using...
This paper presents a new approach to provide two-dimensional directional information mediated by the sense of touch. The basic idea was to test whether one-dimensional stimuli provided by a counterclockwise (CCW) and clockwise (CW) rotating leadscrew of a friction-based fingertip stimulator prototype can be perceived as two-dimensional directional information. Ten participants were asked to indicate...
Adding haptic stimulation to movies is a promising step in creating more emotionally immersive experiences. To explore the potential of this concept, we have created a wearable tactile jacket that is used to deliver movie-specific tactile stimuli to the viewer's body that are specifically targeted to influence the viewer's emotions. Immersion was evaluated in a user test using questionnaires and physiological...
Psychological and neurophysiological studies have investigated the peripheral neural mechanisms implicated in tactile roughness perception. However, the cortical mechanisms involved in roughness processing are not well understood. In the present study, we used behavioural data and event-related evoked potentials (ERPs) to investigate the extent to which two tactile stimuli varying in roughness (triangular...
Palpation is important in both veterinary and medical health professions. It is however difficult to learn, teach and assess. More must be understood about the skills involved in palpation. The present study compares the ability of practicing veterinarians and veterinary students to identify stiffness values. An absolute identification paradigm was used where a force-feedback device rendered virtual...
Recent studies have demonstrated that the tactile roughness perception of surface texture was modified when touch-produced sounds or non-touch-produced sounds were presented while exploring a surface. Our previous research demonstrated that white noise modified tactile roughness perception of an abrasive paper with a certain particle size. In the present study, we investigated whether the dependence...
Materials such as wood or metal which are at equal temperatures are perceived to be of different ldquocoldnessrdquo due to differences in thermal properties, such as the thermal diffusivity. The thermal diffusivity of a material is a parameter that controls the rate with which heat is extracted from the hand when it touches an object of that material. This rate of heat extraction is an important cue...
We are perceiving environment tactually in various situations. Does the perception of tactile timing change depending on the stimulated body parts or how we touch? In this research, we focused on how temporal information is combined under the influence of two distances-somatotopic and spatiotopic. Which distance is important for temporal processing? We provide two experiments to investigate this question...
We measure the performance improvement that force feedback can provide in a virtual environment, through three experiments with, and without the assistance of haptic guidance. Performance measurements were undertaken with haptic, visual and auditory feedback alternatives. The first task investigated the use of haptic guidance mimicking reality, in the form of a simulated touchable surface of an object...
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