The generation of vibrotactile patterns on a linear array: Influences of body site, time, and presentation mode

In order to provide information regarding orientation or direction, a convenient code employs vectors (lines) because they have both length and direction. Potential users of such information, encoded tactually, could include persons who are blind, as well as pilots, astronauts, and scuba divers, all of whom need to maintain spatial awareness in their respective unusual environments. In these situations, a tactile display can enhance environmental awareness. In this study, optimal parameters were explored for lines presented dynamically to the skin with vibrotactile arrays on three body sites, with veridical and saltatory presentation modes. Perceived length, straightness, spatial distribution, and smoothness were judged while the durations of the discrete taps making up the “drawn” dotted lines and the times between them were varied. The results indicate that the two modes produce equivalent sensations and that similar sets of timing parameters, within the ranges tested, result in “good” lines at each site.

[1]  J C Stevens,et al.  Spatial acuity of the body surface over the life span. , 1996, Somatosensory & motor research.

[2]  Kenneth O. Johnson,et al.  Neural Mechanisms of Tactual form and Texture Perception , 1992 .

[3]  J. Kirman,et al.  The effect of number of stimulators on the optimal interstimulus onset interval in tactile apparent movement , 1975 .

[4]  Jack M. Loomis,et al.  Tactile letter recognition under different modes of stimulus presentation , 1974 .

[5]  Roger W. Cholewiak,et al.  Sensory and Physiological Bases of Touch , 1991 .

[6]  R. H. Blackburn.  PERCEPTION OF MOVEMENT , 1937 .

[7]  S. Bolanowski,et al.  The Psychophysics of Tactile Perception and its Peripheral Physiological Basis , 1996 .

[8]  Greg K. Essick,et al.  Human Capacity to Process Directional Information Provided by Tactile Stimuli which Move across the Skin: Characterization and Potential Neural Mechanisms , 1991 .

[9]  E. P. Gardner,et al.  A quantitative analysis of responses of direction-sensitive neurons in somatosensory cortex of awake monkeys. , 1980, Journal of neurophysiology.

[10]  Harold Burton,et al.  Chapter 3 – Somatosensory Cortex and Tactile Perceptions , 1996 .

[11]  Xiaoqin Wang,et al.  Remodelling of hand representation in adult cortex determined by timing of tactile stimulation , 1995, Nature.

[12]  J M Loomis,et al.  A model of character recognition and legibility. , 1990, Journal of experimental psychology. Human perception and performance.

[13]  P L Brooks,et al.  Continuing evaluation of the Queen's University tactile vocoder II: Identification of open set sentences and tracking narrative. , 1986, Journal of rehabilitation research and development.

[14]  Frank Joublin,et al.  Learning cortical topography from spatiotemporal stimuli , 2000, Biological Cybernetics.

[15]  J C Craig,et al.  Modes of vibrotactile pattern generation. , 1980, Journal of experimental psychology. Human perception and performance.

[16]  J C Craig,et al.  Vibrotactile pattern recognition and discrimination at several body sites , 1984, Perception & psychophysics.

[17]  J. E. Korteling,et al.  Continuous Haptic Information in Target Tracking from a Moving Platform , 1998, Hum. Factors.

[18]  D W Sparks,et al.  The identification of the direction of electrocutaneous stimulation along lineal multistimulator arrays , 1979, Perception & psychophysics.

[19]  R W Cholewiak,et al.  Vibrotactile pattern discrimination and communality at several body sites , 1995, Perception & psychophysics.

[20]  Barry Hughes,et al.  The detection of length and orientation changes in dynamic vibrotactile patterns , 1986, Perception & psychophysics.

[21]  S. Bolanowski,et al.  Hairy skin: psychophysical channels and their physiological substrates. , 1994, Somatosensory & motor research.

[22]  F A Geldard,et al.  Space, time and touch. , 1986, Scientific American.

[23]  Roger W. Cholewiak,et al.  The Perception of Tactile Distance: Influences of Body Site, Space, and Time , 1999 .

[24]  James C. Bliss,et al.  Optical-to-Tactile Image Conversion for the Blind , 1970 .

[25]  Riitta Hari,et al.  Illusory directional hearing in humans , 1995, Neuroscience Letters.

[26]  A. Wilska.  On the vibrational sensitivity in different regions of the body surface. , 1954, Acta physiologica Scandinavica.

[27]  G. Gonzales,et al.  Symbol recognition produced by points of tactile stimulation: the illusion of linear continuity. , 1996, Mayo Clinic proceedings.

[28]  N. Suri,et al.  The tactile Situation Awareness System in rotary wing aircraft : Flight test results , 1999 .

[29]  J. Kirman,et al.  Tactile apparent movement: The effects of interstimulus onset interval and stimulus duration , 1974 .

[30]  J. C. Stevens.  Perceived roughness as a function of body locus , 1990, Perception & psychophysics.

[31]  J. Swets.  Signal detection and recognition by human observers : contemporary readings , 1964 .

[32]  J. Kaas,et al.  Magnification, receptive-field area, and "hypercolumn" size in areas 3b and 1 of somatosensory cortex in owl monkeys. , 1980, Journal of neurophysiology.

[33]  Frank A. Geldard,et al.  Sensory saltation : metastability in the perceptual world , 1977 .

[34]  E P Gardner,et al.  Simulation of motion on the skin. III. Mechanisms used by rapidly adapting cutaneous mechanoreceptors in the primate hand for spatiotemporal resolution and two-point discrimination. , 1990, Journal of neurophysiology.

[35]  Carl E. Sherrick,et al.  Apparent haptic movement , 1966 .

[36]  S Weinstein,et al.  Intensive and extensive aspects of tactile sensitivity as a function of body part, sex, and laterality , 1968 .

[37]  Frank A. Geldard,et al.  The cutaneous saltatory area and its presumed neural basis , 1983 .

[38]  R W Cholewiak.  Satiation in cutaneous saltation. , 1976, Sensory processes.

[39]  F. A. Geldard,et al.  The Cutaneous "Rabbit": A Perceptual Illusion , 1972, Science.

[40]  G. Essick,et al.  Dependence of subjective traverse length on velocity of moving tactile stimuli. , 1986, Somatosensory research.

[41]  I. Darian‐Smith,et al.  Touch in primates. , 1982, Annual review of psychology.

[42]  Riitta Hari,et al.  Deficit of temporal auditory processing in dyslexic adults , 1996, Neuroscience Letters.

[43]  Mark Holliins,et al.  Perceptual dimensions of tactile surface texture: A multidimensional scaling analysis , 1993, Perception & psychophysics.

[44]  S. Bolanowski,et al.  Four channels mediate the mechanical aspects of touch. , 1988, The Journal of the Acoustical Society of America.

[45]  E. P. Gardner,et al.  Discrimination of the direction of motion on the human hand: a psychophysical study of stimulation parameters. , 1994, Journal of neurophysiology.

[46]  S E Hall,et al.  Auditory saltation: a new measure for an old illusion. , 1998, The Journal of the Acoustical Society of America.

[47]  Siegfried Engelmann,et al.  Tactual Hearing Experiment with Deaf and Hearing Subjects , 1975 .

[48]  R. Monty,et al.  Cutaneous perception of a tract produced by a moving point across the skin. , 1973, Journal of experimental psychology.

[49]  J M Weisenberger,et al.  The Transmission of Phoneme‐Level Information by Multichannel Tactile Speech Perception Aids , 1995, Ear and hearing.

[50]  M. L. Daley,et al.  A Spatial Resolution Measure of Cutaneous Vision , 1975, IEEE Transactions on Systems, Man, and Cybernetics.

[51]  David C. Alsop,et al.  Mapping of secondary somatosensory cortex activation induced by vibrational stimulation: an fMRI study , 1999, Brain Research.

[52]  T Z Strybel,et al.  The effect of timing and spatial separation on the velocity of auditory apparent motion , 1998, Perception & psychophysics.