Clocks, Bars and Balls

López, Sebastián Aced; Corno, Fulvio; Russis, Luigi De

doi:10.1145/2851581.2892373

Cited by 2 publications

(2 citation statements)

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“…However, in one case, the rotation speed was modied after the rst mini game. The rotation speed is expressed as an integer in the linear interval [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20], where 1 represents a rotation period of 10 seconds and 20 represents a rotation period of 1 second. Determining the right rotation speed is a sensitive task, especially when the participants had attention diculties, because setting a faster speed increases the diculty of successfully selecting the intended ladybug, while a slower speed gave some participants enough time to be distracted and forget about the selection task.…”

Section: First Sessionmentioning

confidence: 99%

“…One of the directions, which has been identied in the focus group (Section 6.2), is the study of new alternative widgets to replace the clocks for improving the performance of players with cognitive diculties. A rst result of this study has been presented by Aced López et al [3], where bars-and balls-based widgets were compared with the default clock (these new widgets are shown in Figures 15 and 16). The initial results of the evaluation of these widgets show that they require fewer cognitive eorts to be understood, and that children prefer the ball widget.…”

Section: Current and Future Directionsmentioning

confidence: 99%

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Design and Development of One-Switch Video Games for Children with Severe Motor Disabilities

López

Corno

Russis

2017

ACM Trans. Access. Comput.

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Video games are not just played for fun, they have become a handy instrument for the cognitive, emotional and social development of children. However, several barriers prevent many children with disabilities from playing action-oriented video games, alone or with their peers. In particular, children with severe motor disabilities, who rely on one-switch interaction for accessing electronic devices, nd fast-paced games, that require rapid decision-making and timely responses, completely unplayable. This paper contributes to lowering such barriers by presenting GNomon, a software framework that allows the creation of action-oriented single switch video games. The paper reports the results of two studies that evaluate the playability and rehabilitation-suitability of GNomon-based video games. The playability of GNomon-based games is evaluated by assessing their learnability, eectiveness, errors, satisfaction, memorability and enjoyability, with a group of 8 children with severe motor disabilities. The suitability for pediatric rehabilitation is determined by means of a focus group with a team of speech therapists, physiotherapists, and psychologists from a Local Health Agency in Turin, Italy. The results of the playability study are positive: all children had fun playing GNomon-based video games, and 7 out of 8 were able to interact and play autonomously. The results of the rehabilitation-suitability study also entail that GNomon-based games can be exploited in training hand-eye coordination and maintenance of selective attention over time. The paper nally oers critical hindsight and reections, and shows possible new future game concepts. CCS Concepts: • Human-centered computing → Accessibility design and evaluation methods; Graphical user interfaces; • Applied computing → Computer games;

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