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Article
Publication date: 14 June 2013

Wai Lun Khoo, Joey Knapp, Franklin Palmer, Tony Ro and Zhigang Zhu

The purpose of this paper is to demonstrate how commercially‐off‐the‐shelf sensors and stimulators, such as infrared rangers and vibrators, can be retrofitted as a useful…

Abstract

Purpose

The purpose of this paper is to demonstrate how commercially‐off‐the‐shelf sensors and stimulators, such as infrared rangers and vibrators, can be retrofitted as a useful assistive technology in real and virtual environments.

Design/methodology/approach

The paper describes how a wearable range‐vibrotactile device is designed and tested in the real‐world setting, as well as thorough evaluations in a virtual environment for complicated navigation tasks and neuroscience studies.

Findings

In the real‐world setting, a person with normal vision who has to navigate their way around a room with their eyes closed will quickly rely on their arms and hands to explore the room. The authors’ device allows a person to “feel” their environment without touching it. Due to inherent difficulties in testing human subjects when navigating a real environment, a virtual environment affords us an opportunity to scientifically and extensively test the prototype before deploying the device in the real‐world.

Research limitations/implications

This project serves as a starting‐point for further research in benchmarking assistive technology for the visually impaired and to eventually develop a man‐machine sensorimotor model that will improve current state‐of‐the‐art technology, as well as a better understanding of neural coding in the human brain.

Social implications

Based on 2012 World Health Organization, there are 39 million blind people. This project will have a direct impact on this community.

Originality/value

The paper demonstrates a low cost design of assistive technology that has been tested and evaluated in real and virtual environments, as well as integration of sensor designs and neuroscience.

Details

Journal of Assistive Technologies, vol. 7 no. 2
Type: Research Article
ISSN: 1754-9450

Keywords

Article
Publication date: 3 January 2023

Joao Vitor da Silva Moreira, Karina Rodrigues, Daniel José Lins Leal Pinheiro, Thaís Cardoso, João Luiz Vieira, Esper Cavalheiro and Jean Faber

One of the main causes of long-term prosthetic abandonment is the lack of ownership over the prosthesis, which was caused mainly by the absence of sensory information regarding…

Abstract

Purpose

One of the main causes of long-term prosthetic abandonment is the lack of ownership over the prosthesis, which was caused mainly by the absence of sensory information regarding the lost limb. The period where the patient learns how to interact with a prosthetic device is critical in rehabilitation. This ideally happens within the first months after amputation, which is also a period associated with the consolidation of brain changes. Different studies have shown that the introduction of feedback mechanisms can be crucial to bypass the lack of sensorial information. To develop a biofeedback system for the rehabilitation of transfemoral amputees – controlled via electromyographic (EMG) activity from the leg muscles – that can provide real-time visual and/or vibratory feedback for the user.

Design/methodology/approach

The system uses surface EMG to control two feedback mechanisms, which are the knee joint of a prosthetic leg of a humanoid avatar in a virtual reality (VR) environment (visual feedback) and a matrix of 16 vibrotactile actuators placed in the back of the user (vibratory feedback). Data acquisition was inside a Faraday Cage using an OpenEphys® acquisition board for the surface EMG recordings. The tasks were performed on able-bodied participants, with no amputation, and for this, the dominant leg of the user was immobilized using an orthopedic boot fixed on the chair, allowing only isometric contractions of target muscles, according to the Surface EMG for Non-Invasive Assessment of Muscles (SENIAM) standard. The authors test the effectiveness of combining vibratory and visual feedback and how task difficulty affects overall performance.

Findings

The authors' results show no negative interference combining both feedback modalities and that performance peaked at the intermediate difficulty. These results provide powerful insights of what can be accomplished with the population of amputee people. By using this biofeedback system, the authors expect to engage another sensory modality in the process of spatial representation of a virtual leg, bypassing the lack of information associated with the disruption of afferent pathways following amputation.

Research limitations/implications

The authors developed a showcase with a new protocol and feedback mechanisms showing the protocol's safety, efficiency and reliability. However, since this system is designed for patients with leg amputation, the full extent of the effects of the biofeedback training can only be assessed after the evaluation with the amputees, and the results obtained so far establish a safe and operational protocol to accomplish this.

Practical implications

In this study, the authors proposed a new biofeedback device intended to be used in the preprosthetic rehabilitation phase for people with transfemoral amputation. With this new system, the authors propose a mechanism to bypass the lack of sensory information from a virtual prosthesis and help to assimilate visual and vibrotactile stimuli as a cue for movement representation.

Social implications

With this new system, the authors propose a mechanism to bypass the lack of sensory information from a virtual prosthesis and help to assimilate visual and vibrotactile stimuli as a cue for movement representation.

Originality/value

The authors' results show that all users were capable of recognizing both feedback modalities, both separate and combined, being able to respond accordingly throughout the tasks. The authors also show that for a one-session protocol, the last difficulty level imposed a greater challenge for most users, explained by the significant drop in performance disregarding the feedback modality. Lastly, the authors believe this paradigm can provide a better process for the embodiment of prosthetic devices, fulfilling the lack of sensory information for the users.

Details

Journal of Enabling Technologies, vol. 17 no. 1
Type: Research Article
ISSN: 2398-6263

Keywords

Article
Publication date: 3 January 2020

Eung Tae Kim and Sungmin Kim

The purpose of this paper is to develop a framework for an interactive clothing that offers a self-directed learning environment in which learners can practice exercises in a time…

Abstract

Purpose

The purpose of this paper is to develop a framework for an interactive clothing that offers a self-directed learning environment in which learners can practice exercises in a time and cost-efficient manner.

Design/methodology/approach

To verify the validity of the framework, an interactive shirt has been developed that can help its wearer practicing certain motor skills in a self-directed manner. This shirt enables the wearer to set reference body postures and to compare current posture with them and can notify whether its wearer repeats them correctly or not through vibrotactile feedback.

Findings

The interactive shirt prototype developed in this study will offer an environment in which learners can practice exercises in a time and cost-efficient manner.

Originality/value

The smart garment framework developed in this study consists of sensor-actuator module, switch device and control software. As this framework is easily scalable, it is expected that it can be used for various smart garment projects where an interaction between the garment and its wearer is needed.

Details

International Journal of Clothing Science and Technology, vol. 32 no. 3
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 11 October 2018

Pavel Zikmund, Miroslav Macík, Petr Dvořák and Zdeněk Míkovec

This paper aims to present a state-of-the-art review in various fields of interest, leading to a new concept of bio-inspired control of small aircraft. The main goal is to improve…

Abstract

Purpose

This paper aims to present a state-of-the-art review in various fields of interest, leading to a new concept of bio-inspired control of small aircraft. The main goal is to improve controllability and safety in flying at low speeds.

Design/methodology/approach

The review part of the paper gives an overview of artificial and natural flow sensors and haptic feedback actuators and applications. This background leads to a discussion part where the topics are synthesized and the trend in control of small aircraft is estimated.

Findings

The gap in recent aircraft control is identified in the pilot–aircraft interaction. A pilot’s sensory load is discussed and several recommendations for improved control system architecture are laid out in the paper.

Practical implications

The paper points out an opportunity for a following research of suggested bio-inspired aircraft control. The control is based on the artificial feeling of aerodynamic forces acting on a wing by means of haptic feedback.

Originality/value

The paper merges two research fields – aircraft control and human–machine interaction. This combination reveals new possibilities of aircraft control.

Details

Aircraft Engineering and Aerospace Technology, vol. 90 no. 6
Type: Research Article
ISSN: 1748-8842

Keywords

Book part
Publication date: 6 December 2021

Laura Corti

This chapter investigates the need to focus on the gap between the pure quantification of the body, expressed by robotic implants, and recent research aiming to recover…

Abstract

This chapter investigates the need to focus on the gap between the pure quantification of the body, expressed by robotic implants, and recent research aiming to recover qualitative aspects of touch, such as sensation. The solution proposed is to analyse new implant technologies with a stereoscopic vision that is able to consider sensation both as intensity of neural signals and as something that we feel. The central question is: what is the value of introducing qualitative analysis into typically quantified robotics research, governed by data?

Details

The Quantification of Bodies in Health: Multidisciplinary Perspectives
Type: Book
ISBN: 978-1-80071-883-8

Keywords

Article
Publication date: 21 March 2016

Wai Lun Khoo and Zhigang Zhu

The purpose of this paper is to provide an overview of navigational assistive technologies with various sensor modalities and alternative perception approaches for visually…

Abstract

Purpose

The purpose of this paper is to provide an overview of navigational assistive technologies with various sensor modalities and alternative perception approaches for visually impaired people. It also examines the input and output of each technology, and provides a comparison between systems.

Design/methodology/approach

The contributing authors along with their students thoroughly read and reviewed the referenced papers while under the guidance of domain experts and users evaluating each paper/technology based on a set of metrics adapted from universal and system design.

Findings

After analyzing 13 multimodal assistive technologies, the authors found that the most popular sensors are optical, infrared, and ultrasonic. Similarly, the most popular actuators are audio and haptic. Furthermore, most systems use a combination of these sensors and actuators. Some systems are niche, while others strive to be universal.

Research limitations/implications

This paper serves as a starting point for further research in benchmarking multimodal assistive technologies for the visually impaired and to eventually cultivate better assistive technologies for all.

Social implications

Based on 2012 World Health Organization, there are 39 million blind people. This paper will have an insight of what kind of assistive technologies are available to the visually impaired people, whether in market or research lab.

Originality/value

This paper provides a comparison across diverse visual assistive technologies. This is valuable to those who are developing assistive technologies and want to be aware of what is available as well their pros and cons, and the study of human-computer interfaces.

Details

Journal of Assistive Technologies, vol. 10 no. 1
Type: Research Article
ISSN: 1754-9450

Keywords

Article
Publication date: 15 June 2012

Marilyn R. McGee‐Lennon

The purpose of this paper is to present a synthesized overview of empirical work carried out in the MultiMemoHome Project in the area of designing multimodal reminders for home…

Abstract

Purpose

The purpose of this paper is to present a synthesized overview of empirical work carried out in the MultiMemoHome Project in the area of designing multimodal reminders for home care. The paper aims to present an overview of multimodal interaction techniques and how they can be used to deliver messages to the user in a way that is more appropriate to the user's needs, the devices available, and the physical and social environment that the person is in when they receive a message.

Design/methodology/approach

The paper argues that electronic reminders or notifications delivered in the home (such as appointments or when to take medication to your phone, computer or TV) should be available in multiple sensory modalities (visual, auditory, tactile and olfactory) in order to increase their usability and acceptability and make them accessible to a wider range of users. This paper supports these arguments by presenting an overview of a series of empirical studies that have been carried out (and reported elsewhere) on the design and evaluation of multimodal reminders for the home.

Findings

The paper provides some guidelines and lessons learned on how to design personalisable multimodal reminder systems for the home.

Originality/value

This paper presents a synthesized overview of a body of existing research on multimodal reminder design for the home. Its contribution is in the argument and presentation of empirical findings that support these arguments. A set of guidelines emerging from the body of work is also presented.

Details

Journal of Assistive Technologies, vol. 6 no. 2
Type: Research Article
ISSN: 1754-9450

Keywords

Article
Publication date: 2 July 2020

Zoltan Dobra and Krishna S. Dhir

Recent years have seen a technological change, Industry 4.0, in the manufacturing industry. Human–robot cooperation, a new application, is increasing and facilitating…

1284

Abstract

Purpose

Recent years have seen a technological change, Industry 4.0, in the manufacturing industry. Human–robot cooperation, a new application, is increasing and facilitating collaboration without fences, cages or any kind of separation. The purpose of the paper is to review mainstream academic publications to evaluate the current status of human–robot cooperation and identify potential areas of further research.

Design/methodology/approach

A systematic literature review is offered that searches, appraises, synthetizes and analyses relevant works.

Findings

The authors report the prevailing status of human–robot collaboration, human factors, complexity/ programming, safety, collision avoidance, instructing the robot system and other aspects of human–robot collaboration.

Practical implications

This paper identifies new directions and potential research in practice of human–robot collaboration, such as measuring the degree of collaboration, integrating human–robot cooperation into teamwork theories, effective functional relocation of the robot and product design for human robot collaboration.

Originality/value

This paper will be useful for three cohorts of readers, namely, the manufacturers who require a baseline for development and deployment of robots; users of robots-seeking manufacturing advantage and researchers looking for new directions for further exploration of human–machine collaboration.

Details

Industrial Robot: the international journal of robotics research and application, vol. 47 no. 5
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 1 January 1995

Susan Gilbert Beck

Beck discusses the need to improve library and information services for the deaf community. The technological support available to libraries to serve the deaf is identified and…

Abstract

Beck discusses the need to improve library and information services for the deaf community. The technological support available to libraries to serve the deaf is identified and described. Turnkey systems are found to be lacking in applications devoted to those who cannot hear or who are hard of hearing. Other technologies, like captioned videos, TDDs, and assistive listening systems, are examined for levels of service and excellence as well as cost. Examples of technology in transition and for the future are offered, along with experiments on speech and sound. These include inner ear implants, the “data glove” experiments, and tactile translators. Technological conflicts that may arise due to one person having multiple disabilities are presented with a discussion on the prevention of dangerous or difficult situations. Possible difficulties and ways to handle opposing technologies are examined briefly. Appropriate sections of the Americans with Disabilities Act and Guidelines are grouped with the technologies that aid compliance. Additional laws are mentioned where their inclusion is appropriate. Suggested guidelines for serving the deaf/disabled community are offered for librarians working in all library types.

Details

Library Hi Tech, vol. 13 no. 1/2
Type: Research Article
ISSN: 0737-8831

Content available
Article
Publication date: 14 June 2013

Roberto Manduchi, James Coughlan and Klaus Miesenberger

76

Abstract

Details

Journal of Assistive Technologies, vol. 7 no. 2
Type: Research Article
ISSN: 1754-9450

1 – 10 of 51