http://nnr.sagepub.com/content/30/3/258?etoc
- Hossein Mousavi Hondori, PhD1
- Maryam Khademi, MEng1
- Lucy Dodakian, MA1
- Alison McKenzie, PhD2
- Cristina V. Lopes, PhD1
- Steven C. Cramer, MD1⇑
- Steven C. Cramer, MD, UC Irvine Medical Center, 200 S Manchester Ave, Suite 206, Orange, CA 92868-4280, USA. Email: scramer@uci.edu
Abstract
Background and Objective.
Advances in technology are providing new forms of human–computer
interaction. The current study examined one form of human–computer
interaction, augmented reality (AR), whereby
subjects train in the real-world workspace with virtual objects
projected by
the computer. Motor performances were compared with
those obtained while subjects used a traditional human–computer
interaction,
that is, a personal computer (PC) with a mouse.
Methods. Patients used goal-directed arm movements to play AR and PC versions of the Fruit Ninja
video game. The 2 versions required the same arm movements to control
the game but had different cognitive demands. With
AR, the game was projected onto the desktop, where
subjects viewed the game plus their arm movements simultaneously, in the
same visual coordinate space. In the PC version,
subjects used the same arm movements but viewed the game by looking up
at
a computer monitor.
Results. Among 18 patients with chronic hemiparesis after stroke, the AR game was associated with 21% higher game scores (P = .0001), 19% faster reaching times (P = .0001), and 15% less movement variability (P = .0068), as compared to the PC game. Correlations between game score and arm motor status were stronger with the AR version.
Conclusions. Motor performances during the
AR game were superior to those during the PC game. This result is due
in part to the greater
cognitive demands imposed by the PC game, a feature
problematic for some patients but clinically useful for others. Mode of
human–computer interface influences rehabilitation
therapy demands and can be individualized for patients.
Hi. I am the first author of this paper and I am happy to see you read it. The research question that this paper asked and tried to answer was that if different modes of human-computer interaction lead to different performance when playing the same game i.e. Fruit Ninja.
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