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Multiple haptic targets for motion-impaired computer users

Faustina Hwang, Simeon Keates, Patrick Langdon, P. John Clarkson
2003 Proceedings of the conference on Human factors in computing systems - CHI '03  
The greatest improvement is seen for the most impaired users. In addition to traditional measures such as time and errors, performance is studied in terms of measures of cursor movement along a path.  ...  This paper investigates the performance of users, both with and without motion-impairments, in a "point-and-click" task when an undesired haptic distractor is present.  ...  ACKNOWLEDGMENTS The authors thank the volunteers and staff of the Papworth Trust. This work is partially funded by the Canadian Cambridge Trust, NSERC, and the EPSRC.  ... 
doi:10.1145/642611.642620 dblp:conf/chi/HwangKLC03 fatcat:dlbjbmpin5hydnkwpbzybbvv4i

Partitioning cursor movements in "point and click" tasks

Faustina Hwang
2003 CHI '03 extended abstracts on Human factors in computer systems - CHI '03  
The movements of motion-impaired users are studied to show that, by analyzing the two phases separately, it is possible to capture aspects of movement that are otherwise lost.  ...  As users can have different difficulties with moving the cursor to a point on the screen, as compared with pressing a button to select an object, it is helpful to study the two stages of the interaction  ...  ACKNOWLEDGMENTS The author thanks S. Keates, P. Langdon, and J. Clarkson for their guidance. Many thanks also to the volunteers and staff of the Papworth Trust.  ... 
doi:10.1145/765916.765927 fatcat:tqj2dhi5ezax3pm6sdfhce5xkq

Partitioning cursor movements in "point and click" tasks

Faustina Hwang
2003 CHI '03 extended abstracts on Human factors in computing systems - CHI '03  
The movements of motion-impaired users are studied to show that, by analyzing the two phases separately, it is possible to capture aspects of movement that are otherwise lost.  ...  As users can have different difficulties with moving the cursor to a point on the screen, as compared with pressing a button to select an object, it is helpful to study the two stages of the interaction  ...  ACKNOWLEDGMENTS The author thanks S. Keates, P. Langdon, and J. Clarkson for their guidance. Many thanks also to the volunteers and staff of the Papworth Trust.  ... 
doi:10.1145/765891.765927 dblp:conf/chi/Hwang03 fatcat:scc7st3zyvdnnfn3fcyku5thza

Target reverse crossing

Wenxin Feng, Ming Chen, Margrit Betke
2014 Proceedings of the 7th International Conference on PErvasive Technologies Related to Assistive Environments - PETRA '14  
We propose a selection method, "target reverse crossing," for use with camera-based mouse-replacement for people with motion impairments.  ...  We also show that increasing the target size improves the performance of reverse crossing significantly, which provides future interface design implications for this selection method.  ...  To better understand the need of people with motion impairments, we will include participants with disabilities in our future research about interface design and interaction tools for camera-based mouse-replacement  ... 
doi:10.1145/2674396.2674443 dblp:conf/petra/FengCB14 fatcat:sehkygzn4vfgdohxywueqsl25e

Lever-actuated resonance assistance (LARA): A wheelchair-based method for upper extremity therapy and overground ambulation for people with severe arm impairment

Daniel K. Zondervan, Brendan Smith, David J. Reinkensmeyer
2013 2013 IEEE 13th International Conference on Rehabilitation Robotics (ICORR)  
We then describe a novel motion-based user interface that allows individuals to control a video game with LARA while operating a wheelchair in resonance.  ...  People with severe arm impairment have limited technologies available for retraining their arms, and, if they also have difficulty walking, they often cannot effectively use a manual wheelchair because  ...  Motion-based computer gaming interface for LARA To test whether it is feasible to control video games with two degrees of freedom within the LARA framework, we measured the time it took subjects (n = 6  ... 
doi:10.1109/icorr.2013.6650400 pmid:24187219 dblp:conf/icorr/ZondervanSR13 fatcat:kbn6nj32cnfx3dqmy6airmr4mm

Enhanced area cursors

Leah Findlater, Alex Jansen, Kristen Shinohara, Morgan Dixon, Peter Kamb, Joshua Rakita, Jacob O. Wobbrock
2010 Proceedings of the 23nd annual ACM symposium on User interface software and technology - UIST '10  
In a study with motorimpaired and able-bodied users, we compared the new designs to the point and Bubble cursors, the latter of which had not been evaluated for users with motor impairments.  ...  Computer users with motor impairments face major challenges with conventional mouse pointing. These challenges are mostly due to fine pointing corrections at the final stages of target acquisition.  ...  Acknowledgments The authors thank Jon Froehlich and Karyn Moffatt for valuable feedback.  ... 
doi:10.1145/1866029.1866055 dblp:conf/uist/FindlaterJSDKRW10 fatcat:3yjw4lklhfduhmzsbpgthmodni

Augmenting graphical user interfaces with haptic assistance for motion-impaired operators

C.T. Asque, A.M. Day, S.D. Laycock
2014 International Journal of Human-Computer Studies  
The assistance is designed specifically to enable motion-impaired operators to use existing GUIs more effectively.  ...  Haptic assistance is an emerging field of research that is designed to improve human-computer interaction (HCI) by reducing error rates and targeting times through the use of force feedback.  ...  Currently, there is relatively little literature regarding the use of haptic virtual switches for motion-impaired computer users.  ... 
doi:10.1016/j.ijhcs.2014.05.007 fatcat:ymlh3v6kufgcjdrzsjkkfgs3r4

Case study: Head orientation and neck electromyography for cursor control in persons with high cervical tetraplegia

Matthew R. Williams, Robert F. Kirsch
2016 Journal of rehabilitation research and development  
We evaluated the ability of an individual with a high cervical spinal cord injury (SCI) to control a cursor on a computer screen using two different user interfaces: (1) head movements measured via a head-mounted  ...  The subject moved the cursor to a set of targets on the screen in a two-dimensional, center-out, target-acquisition task, and his performance was evaluated with a variety of performance measures to assess  ...  Other populations that exhibit upper-limb movement impairment severe enough to preclude the use of typical user interfaces such as a mouse or joystick, for example, those with stroke, amyotrophic lateral  ... 
doi:10.1682/jrrd.2014.10.0244 pmid:27532681 fatcat:uulyqnk4izhkxkfum7bn2rc2nm

Neck range of motion and use of computer head controls

Edmund LoPresti, David M. Brienza, Jennifer Angelo, Lars Gilbertson, Jonathan Sakai
2000 Proceedings of the fourth international ACM conference on Assistive technologies - Assets '00  
This study also identified features of the cursor movement path that could aid in assessing computer access limitations.  ...  A model was developed with the use of cursor positioning time and number of velocity peaks to identify when a person was having difficulty with target acquisition (κ = 0.81).  ...  ACKNOWLEDGMENTS We thank Jonathan Sakai for his assistance in conducting neck range of motion evaluations, and we also thank the research subjects for their participation.  ... 
doi:10.1145/354324.354352 dblp:conf/assets/LoPrestiBAGS00 fatcat:cjabvksq4nay3agszs3diiynye

Improving Target Acquisition for Computer Users With Athetosis

Dan Ding, Sergio Peral Rodriguez, Rory A. Cooper, Cameron N. Riviere
2014 Assistive technology  
Considering the target acquisition occurs countless times in the course of regular computer use, the accumulative effect of such improvements can be significant for improving the efficiency of computer  ...  vicinity of a predicted target, and expansion of the predicted target as the cursor approaches it.  ...  With the popularization of computer applications using graphical user interfaces (GUI), users may constantly need to move the cursor to the desired location of the computer screen and make the selection  ... 
doi:10.1080/10400435.2014.984260 pmid:26132226 pmcid:PMC4670556 fatcat:5k4rnh5kengcvksidj4be7hy2a

Body machine interfaces for neuromotor rehabilitation: A case study

Camilla Pierella, Farnaz Abdollahi, Ali Farshchiansadegh, Jessica Pedersen, David Chen, Ferdinando A. Mussa-Ivaldi, Maura Casadio
2014 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society  
With this approach, we were able to change the behavior of our SCI subject, who initially used almost exclusively his less impaired degrees of freedom -on the left side -for controlling the BoMI.  ...  The BoMI remaps the user's residual upper body mobility to the two coordinates of a cursor on a computer monitor.  ...  Acknowledgments Research supported by NIDRR grant H133E120010, NIH/NICHHD grant 1R01HD072080, and with the kind contribution of the Ministry of Foreign Affairs, Unit for S/T cooperation.  ... 
doi:10.1109/embc.2014.6943612 pmid:25569980 pmcid:PMC4386866 dblp:conf/embc/PierellaAFPCMC14 fatcat:pzbmzlaa45fdhpp6btpyjhz7cu

Understanding pointing problems in real world computing environments

Amy Hurst, Jennifer Mankoff, Scott E. Hudson
2008 Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility - Assets '08  
We developed a technique to collect and analyze real world pointing performance which we used to investigate the variance in performance of six individuals with a range of pointing abilities.  ...  The high variance found within each participant highlights the potential inaccuracy of judging performance based on a single laboratory session.  ...  ACKNOWLEDGMENTS We thank all our participants and the staff at United Cerebral Palsy Center in Pittsburgh for their time and commitment to help collect this data.  ... 
doi:10.1145/1414471.1414481 dblp:conf/assets/HurstMH08 fatcat:qtese5y2wfbqjju3navqmpp5ty

Page 759 of Communication Abstracts Vol. 22, Issue 5 [page]

1999 Communication Abstracts  
This is of particular benefit to a user with impaired motion.  ...  For users with motion impairments, the standard keyboard and mouse arrangement for computer access often presents problems. Other approaches have to be adopted to overcome this impediment.  ... 

Defining Acceptable Interaction for Universal Access [chapter]

Simeon Keates
2015 Lecture Notes in Computer Science  
Many new assistive input systems developed to meet the needs of users with functional impairments fail to make it out of the research laboratory and into regular use by the intended end users.  ...  This paper examines some of the reasons for this and focuses particularly on whether the developers of such systems are using the correct metrics for evaluating the functional attributes of the input technologies  ...  A likely candidate for such a measure is the bit rate of useful information transfer between the user and the computer utilizing the assistive input system.  ... 
doi:10.1007/978-3-319-20678-3_6 fatcat:5ssktd7lxfgbdb655hagi7gkn4

Toward Goldilocks' pointing device

Heidi Horstmann Koester, Edmund LoPresti, Richard C. Simpson
2005 Proceedings of the 7th international ACM SIGACCESS conference on Computers and accessibility - Assets '05  
We designed and evaluated an agent that recommends a pointing device gain for a given user, with mixed success. 12 participants with physical impairments used the Input Device Agent (IDA), to determine  ...  IDA recommended a gain other than the Windows default for 9 of 12 subjects.  ...  ACKNOWLEDGEMENTS We thank the participants for their generous contributions of time and effort. This work is funded by a Phase I SBIR grant from the National Institutes of Health, #1 R43 HD045015-01.  ... 
doi:10.1145/1090785.1090802 dblp:conf/assets/KoesterLS05 fatcat:yda4dgp53jhhdg5r346sq726lq
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