Electrotactile and vibrotactile displays for sensory substitution systems

  title={Electrotactile and vibrotactile displays for sensory substitution systems},
  author={Kurt A. Kaczmarek and John G. Webster and Paul Bach-y-Rita and W. J. Tompkins},
  journal={IEEE Transactions on Biomedical Engineering},
Sensory substitution systems provide their users with environmental information through a human sensory channel (eye, ear, or skin) different from that normally used or with the information processed in some useful way. The authors review the methods used to present visual, auditory, and modified tactile information to the skin and discuss present and potential future applications of sensory substitution, including tactile vision substitution (TVS), tactile auditory substitution, and remote… 

Tactile Sensation Display with Electrotactile Interface

An ETCS is developed and effectiveness of the proposed system in terms of the perception of roughness of a surface by stimulating the palmar side of hand with different waveforms and the Perception of direction and loca- tion information through forearm is investigated.

Vestibular sensory substitution using tongue electrotactile display

This chapter will briefly review visual and auditory sensory substitution, as well as tactile feedback in robotic systems, followed by an extended discussion of vestibular sensory substitution.

HyVE: Hybrid Vibro-Electrotactile Stimulation for Sensory Feedback and Substitution in Rehabilitation

The results demonstrated that the subjects were able to discriminate the features of the two modalities within the hybrid stimulus, and that the cross-modality interaction was limited enough to allow better transmission of discrete information (messages) using hybrid versus single modality coding.

Tactile displays: Overview and recent advances

Polarity Effect in Electrovibration for Tactile Display

Experimental data is presented showing that electrovibratory perceptual sensitivity to positive pulses is less than that for negative or biphasic pulses and it is proposed that this disparity may be due to the asymmetric electrical properties of human skin.

HyVE—Hybrid Vibro-Electrotactile Stimulation—Is an Efficient Approach to Multi-Channel Sensory Feedback

It is shown that multiple HyVE units could be used to provide multi-channel sensory information with equivalent performance to single modality interfaces (vibro- or electro-tactile) larger in size and with better performance than vibrotactile interfaces with the same size.

Tactile Displays : a short overview and recent developments

In general tactation based interfaces may allow communication of visual information to the brain in situations where the visual or hearing system is already overloaded such as race car drivers, airplane pilots, operating rooms, virtual reality and tele-presence.

Perception of electrical and mechanical stimulation of the skin: implications for electrotactile feedback

A transfer function is derived that could be used in the future to convert mechanical stimuli detected with artificial sensors placed on the fingers into electrotactile signals that evoke perceptions similar to those arising from normal mechanical stimulation of the skin.

Study on lower back electrotactile stimulation characteristics for prosthetic sensory feedback

The results show an increased influence of stimulation frequency over the stimulation parameters with smaller electrodes, however the stimulation range, that is the difference between the lower sensation threshold and the pain threshold, was considerably reduced.



Information transmission across the skin: high-resolution tactile sensory aids for the deaf and the blind.

  • F. Saunders
  • Medicine
    The International journal of neuroscience
  • 1983
An electrotactile sensory aid for profoundly deaf children, which displays acoustic information on the skin of the abdomen, via a belt of elect rotactile stimulators, and the resulting tactile patterns provide cues for recognizing environmental sounds, enhance the accuracy of lipreading, and enable the child to monitor his/her own voice.

Pain Sensations Associated with Electrocutaneous Stimulation

The dynamic range and the stability of the sensation magnitude have been measured under paste-free conditions and the conclusion is reached that electrocutaneous stimulation would be a viable alternative to mechanical stimulation in certain sensory substitution applications.

Investigating the MESA (multipoint electrotactile speech aid): the transmission of segmental features of speech.

Analysis of the data demonstrates that the tactile transform enables receivers to achieve excellent recognition of vowels in CVC context and the consonantal features of voicing and nasality, which leads to recognition performance in the combined condition (visual plus tactual) which far exceeds either reception condition in isolation.

The Afferent Discharge Elicited by Vibrotactile Stimulation

When tactile displays are designed, the stimulus parameters will have to be chosen according to the psychophysical functions as well as to the receptor properties, in order to obtain a device that is optimal from a discriminatory point of view.

Basic and applied research on tactile aids for deaf people: Progress and prospects

A brief introduction describes the alternative methods for replacement of the sense of hearing, including the educational procedures of sign language and lipreading, the medical procedure of cochlear

Four channels mediate the mechanical aspects of touch.

It is concluded that the four channels work in conjunction at threshold to create an operating range for the perception of vibration that extends from at least 0.4 to greater than 500 Hz and may be determined by the combined inputs from four channels.

Properties of cutaneous mechanoreceptors in the human hand related to touch sensation.

The relationship between the stimulus amplitude and perceived intensity during sustained skin indentations did not match the corresponding stimulus response functions of SA units suggesting non-linear transformations within the central nervous system.

Sensory feedback control of upper- and lower-extremity motor prostheses.

  • C. Phillips
  • Medicine, Psychology
    Critical reviews in biomedical engineering
  • 1988
The topic is introduced with a conceptual definition of sensory feedback control applied to prosthetic systems. An overview of sensory physiology is then provided. Tactile sensation and audition are

Psychophysical studies relevant to the design of a digital electrotactile speech processor.

An electrotactile speech processor is proposed, which codes the speech amplitude as pulse width, the fundamental frequency as pulse rate, and the second formant frequency as electrode position, which is expected to arise from the intersubject differences in dynamic range and pulse rate discrimination.

Kinesthetic Sensing for the EMG Controlled "Boston Arm"

The contribution of a novel cutaneous display of elbow angle to an amputee's ability to position an EMG-controlled externally powered elbow prosthesis was objectively evaluated. Comparisons were made