An investigation on the impact of auditory and haptic feedback on rhythmic walking interactions
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Keywords:
Auditory feedback
Pace
Cadence
Haptic perception
This paper describes research on human perception of haptic information in minimal access surgery (MAS) instruments, for use in a MAS simulator. Understanding the thresholds of human perception is important in determining which haptic information must be provided for realistic feedback and which information can be ignored without compromising the immersive quality of the simulator. Initially this research has determined the limits of perception for non-continuous change of force amplitude and frequency in a scissors-grasping position.
Haptic perception
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Haptic perception
Stereotaxy
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Haptic perception
Stimulus (psychology)
Stereotaxy
Information Transfer
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Haptic perception
Stereotaxy
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A simple haptic perception device using "Touch Blend". Our former device had some problems of device specifications and the method of haptic perceptions. In this study, a new device was made, and it could compound "haptic perceptions" from five elements (pressure, vibration, warmth, cold, pain). An evaluation experiment was carried out on 30 volunteers of early 20s. They put their fingertip on the device, and they answered into a sheet of items. The results suggested that the device could present hardness, titillate and warmth. The device failed to present elasticity, which was speculated to be presented by combining pressure and warmth, and throb as also the result of combining vibration and pain, and the device was not able to present cold and prick, though these problems can be solved by improving the device. And the results reached by the experiment were successful enough to say that our new haptic perception device based on "Touch Blend" is capable of presenting haptic sensations. Consequently, our idea of providing haptic perceptions based on "Touch Blend" theory was proved to be feasible.
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Haptic displays can greatly facilitate manual control tasks. Their capacity of allowing the operator to perceive the desired dynamics is an important design parameter. However, attempts to evaluate haptic displays on the basis of what dynamics humans actually perceive are scarce. This paper proposes a two-step framework which incorporates the characteristics of human haptic perception into the evaluation of haptic displays. The first step is to evaluate the haptic display based on a recently developed model of the threshold for changes in the perception of system dynamics. It allows us to know the frequency spectrum in which a haptic device alters the operator’s perception of the system dynamics. The second step is then to understand how the perceived dynamic distortions affect the operator’s characterization of the system dynamics. Findings from recent psychophysical studies allow us to relate the changes in perception caused by the haptic device to changes in the perceived mechanical properties of the system. A numerical example illustrates how haptic displays can be evaluated using the proposed framework.
Haptic perception
Operator (biology)
Dynamics
Stereotaxy
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This paper presents the results of several early studies relating to human haptic perception sensitivity when probing a virtual object. A 1 degree of freedom (DoF) rotary haptic system, that was designed and built for this purpose, is also presented. The experiments were to assess the maximum forces applied in a minimally invasive surgery (MIS) procedure, quantify the compliance sensitivity threshold when probing virtual tissue and identify the haptic system loop rate necessary for haptic feedback to feel realistic.
Haptic perception
Degree (music)
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Haptic perception plays a major role when vision and audition are partially or fully impaired. Therefore, this paper tries to give a brief overview on humans' sensitivity distribution in perceptual space. During our experiments, a wearable sleeve with 7 vibro-actuators was used to stimulate subjects arm to convey haptic feedback. The basic research questions in this study are: (1) whether humans' perception linearly correlated with the actuation frequency, haptic feedback in our scenario (2) humans' ability to generalise templates via the wearable haptic sleeve. Those findings would be useful to increase humans' perception when humans have to work with fully or partially impaired perception in their day-to-day life.
Haptic perception
Wearable Technology
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This paper presents a quantitative study of the effects of maximum capable force magnitude of a haptic interface on the haptic perception of detail. Specifically, the haptic perception of detail is characterized by identification, detection, and discrimination of round and square cross-section ridges, in addition to corner detection tests. Test results indicate that performance, measured as a percent correct score in the perception experiments, improves in a nonlinear fashion as the maximum allowable level of force in the simulation increases. Further, all test subjects appeared to reach a limit in their perception capabilities at maximum-force output levels of 3-4 N, while the hardware was capable of 10 N of maximum continuous force output. These results indicate that haptic interface hardware may be able to convey sufficient perceptual information to the user with relatively low levels of force feedback. The data is compiled to aid those who wish to design a stylus-type haptic interface to meet certain requirements for the display of physical detail within a haptic simulation.
Stylus
Haptic perception
Interface (matter)
Just-noticeable difference
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Haptic exploration, or active touch, is a perceptual modality that has demonstrated therapeutic potential for elementary age children but is not commonly studied with this age group. The aim of this exploratory study was to discover the characteristics of haptic scanning that are associated with efficiency and accuracy in a shape matching task. The study tasks were designed to resemble common visual perception tests, but in a haptic form using wooden shapes. Children ages 6 years, 6 months to 9 years, 6 months (N = 25), and adults (N = 25) engaged in shape matching tasks that involved either cross-modal (haptic with vision) or unimodal (haptic only) exploration. Video recordings were analyzed and four types of haptic strategies were identified that were significantly related to both age and correctness of response: the simultaneous use of two hands was the highest level and the use of one hand was the lowest. The findings are discussed in terms of attention capacity and ability to use points of reference.
Haptic perception
Modality (human–computer interaction)
Age groups
Stimulus modality
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