scholarly journals A low cost SSVEP-EEG based human-computer-interaction system for completely locked-in patients

2021 ◽  
Vol 10 (4) ◽  
pp. 2245-2253
Author(s):  
Azhar Dilshad ◽  
Vali Uddin ◽  
Muhammad Rizwan Tanweer ◽  
Tariq Javid

Human computer interaction (HCI) for completely locked-in patients is a very difficult task. Nowadays, information technology (IT) is becoming an essential part of human life. Patients with completely locked-in state are generally unable to facilitate themselves by these useful technological advancements. Hence, they cannot use modern IT gadgets and applications throughout the lifespan after disability. Advancements in brain computer interface (BCI) enable operating IT devices using brain signals specifically when a person is unable to interact with the devices in conventional manner due to cognitive motor disability. However, existing state-of-the-art application specific BCI devices are comparatively too expensive. This paper presents a research and development work that aims to design and develop a low-cost general purpose HCI system that can be used to operate computers and a general purpose control panel through brain signals. The system is based on steady state visual evoked potentials (SSVEP). In proposed system, these electrical signals are obtained in response of a number of different flickering lights of different frequencies through electroencephalogram (EEG) electrodes and an open source BCI hardware. Successful trails conducted on healthy participants suggest that severely paralyzed subjects can operate a computer or control panel as an alternative to conventional HCI device.

Author(s):  
Nicola Green ◽  
Rob Comber ◽  
Sharron Kuznesof

Humans beings in the 21st century face significant social and global change. Ever-evolving digital technologies are increasingly embedded in the material, economic, and socio-cultural milieu; while global crises in climate change present challenges to human and global security and resilience. Social science and human-computer interaction research has investigated how digital systems might help to understand current environmental changes and intervene in the problematic human relationships to scarce resources of the natural world. This chapter reviews research contributions of sustainable human-computer interaction (HCI) and the social sciences on human consumption of resources most crucial to human life: water, energy, and food (WEF). Briefly outlining the current and ongoing evolution of digital technologies particularly concerned with embedded urban digital infrastructures in “smart” and automated technologies and the Internet of Things, it then touches on the scope and scale of the simultaneous environmental challenges posed by population growth and urbanization. It introduces sustainable HCI as one approach that directly addresses both trends. The chapter then outlines the most significant approaches that have informed the development of “sustainable HCI,” and reviews important empirical contributions underpinning the developing interdisciplinary research in the field. It outlines the current understanding of household resource use and considers how developing digital technologies might support domestic resource conservation and mitigate intensive domestically based resource consumption. The chapter closes with observations on the shifting relationships (and sustainable HCI research into them) that might constitute future ways of being in a sustainable digital age.


Sensors ◽  
2019 ◽  
Vol 19 (12) ◽  
pp. 2690 ◽  
Author(s):  
Won-Du Chang

Eye movements generate electric signals, which a user can employ to control his/her environment and communicate with others. This paper presents a review of previous studies on such electric signals, that is, electrooculograms (EOGs), from the perspective of human–computer interaction (HCI). EOGs represent one of the easiest means to estimate eye movements by using a low-cost device, and have been often considered and utilized for HCI applications, such as to facilitate typing on a virtual keyboard, moving a mouse, or controlling a wheelchair. The objective of this study is to summarize the experimental procedures of previous studies and provide a guide for researchers interested in this field. In this work the basic characteristics of EOGs, associated measurements, and signal processing and pattern recognition algorithms are briefly reviewed, and various applications reported in the existing literature are listed. It is expected that EOGs will be a useful source of communication in virtual reality environments, and can act as a valuable communication tools for people with amyotrophic lateral sclerosis.


Author(s):  
Herman Tolle ◽  
Kohei Arai

Head movement has been found to be a natural way of interaction. It can be used as an alternative control method and provides accessibility for users when used in human computer interface solutions. The combination of Head-mounted displays (HMDs) with mobile devices, provide an innovation of new low cost of human-computer interaction. Such devices are hands-free systems. In this paper, we introduce a new method for recognizing head movement as the controller of mobile application and proposed a new control system using head movement only. The proposed method can determine specific head pose movement and respond it as a controller. The implementation of a music player application on an iOS devices shows that the proposed method is appropriate for a new experience of real-time human-computer interaction with head movement control only.


2017 ◽  
Vol 4 (4) ◽  
pp. 274-281 ◽  
Author(s):  
Bo Liu ◽  
Alexander Irvine ◽  
Mobayode O. Akinsolu ◽  
Omer Arabi ◽  
Vic Grout ◽  
...  

Abstract Optimizers in commercial electromagnetic (EM) simulation software packages are the main tools for performing antenna design exploration today. However, these general purpose optimizers are facing challenges in optimization efficiency, supported optimization types and usability for antenna experts without deep knowledge on optimization. Aiming to fill the gaps, a new antenna design exploration tool, called Antenna Design Explorer (ADE), is presented in this paper. The key features are: (1) State-of-the-art antenna design exploration methods are selected and embedded, addressing efficient antenna optimization (critical but unable to be solved by existing tools) and multiobjective antenna optimization (not available in most existing tools); (2) Human-computer interaction for the targeted problem is studied, addressing various usability issues for antenna design engineers, such as automatic algorithmic parameter setting and interactive stopping criteria; (3) Compatibility with existing tools is studied and ADE is able to co-work with existing EM simulators and optimizers, combining advantages. A case study verifies the advantages of ADE. Highlights A new antenna design exploration tool, called Antenna Design Explorer (ADE), is presented in this paper. State-of-the-art antenna design exploration methods are selected and embedded, addressing efficient antenna optimization (critical but difficult to be solved by existing tools) and multiobjective antenna optimization (not available in most existing tools). Human-computer interaction for the targeted problem is studied, addressing various usability issues for antenna design engineers. Compatibility with existing tools is studied and ADE is able to co-work with existing EM simulators and optimizers, combining advantages.


Author(s):  
Maya Reslan ◽  
Emily M. Hastings ◽  
Michael P. Brundage ◽  
Thurston Sexton

Even as maintenance evolves with new technologies, it is still a heavily human-driven domain; multiple steps in the maintenance workflow still require human expertise and intervention. Various maintenance activities require multiple maintainers, all with different skill sets and expertise, and from various positions and levels within the organization. Responding to maintenance requests, training exercises, or executing larger maintenance projects all can require maintenance teams. Having the correct assortment of individuals both in terms of skills and management experience can help improve the efficiency of these maintenance tasks. This paper presents a workflow for creating teams of maintainers by adapting accepted practices from the human-computer interaction (HCI) community. These steps provide a low-cost solution to help account for the needs of maintainers and their management, while matching skills of the maintainers with the needs of the activity.


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