A tactile display for presenting quality of materials by changing the temperature of skin surface

Ino, Shuichi; Shimizu, Shohei; Odagawa, T.; Sato, Mitsuru; Takahashi, Makoto; Izumi, Taisuke; Ifukube, Tohru

doi:10.1109/roman.1993.367718

Cited by 94 publications

(68 citation statements)

References 6 publications

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“…These threshold values are smaller than the thermal changes measured as the index finger made contact with the materials. The time course and amplitude of the thermal responses are, however, markedly different from those reported by Ino et al (1993), who, for a single subject, showed an immediate decline in skin temperature upon contact with all materials. The decreases in skin temperature that they reported ranged from 0.1ºC for wood to 7ºC for aluminum and occurred within 1 sec and then stabilized within 500 msec, which is an extremely rapid and dramatic response for the peripheral thermal system.…”

Section: Discussioncontrasting

confidence: 95%

“…In a further study of thermal cues and object identification, Ino et al (1993) measured the decrease in finger temperature as subjects made contact with a number of materials that they were required to identify. Of the five materials presented to the fingertip, the subjects could reliably identify aluminum and wood, with success rates higher than 80%, but confused glass, rubber, and polyacrylate.…”

Section: T T T Skini T T ϫ T Smentioning

confidence: 99%

“…Ino et al found that the recognition rates for the various samples presented with the thermal display were equivalent to those measured using real materials and that there was no significant difference in the information transmission rates associated with the real object and the Peltier-based thermal display. In both of these studies (Caldwell & Gosney, 1993;Ino et al, 1993), the subjects were required to identify the material on the basis of the pattern of thermal stimulation presented to the hand, and the subjects knew in advance the types of material being presented. These results suggest that subjects can use thermal cues effectively to identify objects and that different materials have thermal transients associated with skin contact that are perceptually distinct.…”

Section: T T T Skini T T ϫ T Smentioning

confidence: 99%

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Contribution of thermal cues to material discrimination and localization

Jones

2006

Perception & Psychophysics

140

100

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118The ability to identify and discriminate between objects b by touch is based on the perception of a number of properties, including shape, surface texture, compliance, and thermal characteristics. These cues become particularly important when objects must be identified in the absence of vision. The human hand is capable of resolving remarkably fine variations in texture, as is shown by its capacity to detect periodically ordered elements that are only 0.06 μm high when there is a relative motion between the texture and the finger pad (LaMotte & Srinivasan, 1991). The ability to discriminate between the compliance of objects depends on whether the objects have deformable or rigid surfaces. With deformable surfaces, cutaneous cues from skin deformation are sufficient to discriminate compliance, whereas for rigid objects both cutaneous and proprioceptive cues are necessary for discrimination (Srinivasan & LaMotte, 1995). The thermal cues that are used to assist in identifying an object arise from changes in skin temperature that occur when the object is held in the hand. Warm and cold thermoreceptors in the skin discharge in response to these local thermal transients. The resting temperature of the skin is generally higher than the temperature of the object in contact with the skin, and so it is the cold thermoreceptors that signal the decrease in skin temperature upon contact.The ability to perceive thermal changes depends on many factors, including the amplitude and rate of temperature change, the baseline temperature of the skin, and the site stimulated (for reviews, see Darian-Smith, 1984;Stevens, 1991). The threshold for discriminating the difference in the amplitudes of two temperature pulses delivered to the thenar eminence of the hand is 0.02º-0.07ºC for cooling pulses and 0.03º-0.09ºC for warming pulses (Johnson, Darian-Smith, & LaMotte, 1973;Johnson, Darian-Smith, LaMotte, Johnson, & Oldfield, 1979). This is considerably lower than the threshold for discriminating a change in skin temperature. When the skin temperature of the thenar eminence is maintained at 33ºC, the differential threshold is 0.20ºC for warming and 0.11ºC for cooling (Stevens & r Choo, 1998). If skin temperature changes very slowly-for n example, at a rate of less than 0.5ºC/min-an observer can be unaware of a change of up to 4º-5ºC, provided that the f temperature remains within the neutral thermal zone of 30º-36ºC (Kenshalo, 1976).The resting temperature of the skin on the hand ranges from 25º to 36ºC (Verrillo, Bolanowski, Checkosky, & t McGlone, 1998) and typically is higher than the ambient temperature of materials encountered in the environment. The thermal cues used to identify a material by touch are influenced by the interface temperature and the heat flux conducted out of the skin upon contact. These are, in turn, t a function of thermal properties, such as conductivity, heat capacity, and the initial temperatures of the skin and material. The thermal interaction between the skin and a material in contact with the skin is ...

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Section: Discussioncontrasting

confidence: 95%

Section: T T T Skini T T ϫ T Smentioning

confidence: 99%

Section: T T T Skini T T ϫ T Smentioning

confidence: 99%

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Contribution of thermal cues to material discrimination and localization

Jones

2006

Perception & Psychophysics

140

100

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“…Caldwell et al [5] used a purpose-built instrumented finger to sense and communicate tactile cues from a robot device to the operator. Both Ino et al [12] and Ho et al [10] developed stand-alone thermal displays using Peltier elements to simulate the heat flux behavior of touched objects. Their results show that materials with similar heat conductivity, such as copper and stainless steel, were often confused.…”

Section: Thermal Feedback In Hcimentioning

confidence: 99%

“…However, there was no significant di↵erence in the performance of the subjects between identifying real and simulated materials. Ino et al [12] measured the decrease in finger temperature when in contact with the physical materials aluminum, glass, rubber, polyacrylate and wood. Then, they simulated these cues using their device.…”

Section: Thermal Feedback In Hcimentioning

confidence: 99%

Reproducing materials of virtual elements on touchscreens using supplemental thermal feedback

Richter

Hausen

Osterwald

et al. 2012

Proceedings of the 14th ACM International Conference on Multimodal Interaction

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In our everyday life, the perception of thermal cues plays a crucial role for the identification and discrimination of materials. When touching an object, the change of temperature in the skin of our fingertips is characteristic for the touched material and can help to discriminate objects with the same texture or hardness. However, this useful perceptual channel is disregarded for interactive elements on standard touchscreens.In this paper, we present a study in which we compared the rate of object discrimination for stand-alone thermal stimuli as well as supplemental thermal stimuli characterizing virtual materials on a touchscreen. Our results show that five materials could be discriminated at a stable rate using either stand-alone or supplemental thermal stimuli. They suggest that thermal cues can enable material discrimination on touch surfaces, which gives way for expanded use of thermal stimuli on interactive surfaces.

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Tactile Stimulation

Poletto¹

2006

Encyclopedia of Medical Devices and Instrumentation

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Tactile stimulators manipulate sensors in the skin to produce sensations such as light touch, vibration, pressure, shape, and texture. The wide variety of applications for tactile stimulation include sensory substitution and augmentation, telepresence and telerobotic sensory feedback, improved immersion in virtual environments, and general information communication through the skin senses. This article discusses the three primary classes of tactile stimulation technologies: vibrotaction, dynamic mechanical shape arrays, and electrocutaneous stimulation. An overview of basic mechanoreceptor physiology is provided, including implications for stimulator design parameters. Predictions for the future development of tactile stimulation are presented, including the emerging applications in wearable computers.

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A tactile display for presenting quality of materials by changing the temperature of skin surface

Cited by 94 publications

References 6 publications

Contribution of thermal cues to material discrimination and localization

Contribution of thermal cues to material discrimination and localization

Reproducing materials of virtual elements on touchscreens using supplemental thermal feedback

Tactile Stimulation

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