title: Exploring the bases for a mixed reality stroke rehabilitation system, part I: a unified approach for representing action, quantitative evaluation, and interactive feedback.
abstract: BACKGROUND
  Although principles based in motor learning, rehabilitation, and human-computer interfaces can guide the design of effective interactive systems for rehabilitation, a unified approach that connects these key principles into an integrated design, and can form a methodology that can be generalized to interactive stroke rehabilitation, is presently unavailable.
  
  
  RESULTS
  This paper integrates phenomenological approaches to interaction and embodied knowledge with rehabilitation practices and theories to achieve the basis for a methodology that can support effective adaptive, interactive rehabilitation. Our resulting methodology provides guidelines for the development of an action representation, quantification of action, and the design of interactive feedback. As Part I of a two-part series, this paper presents key principles of the unified approach. Part II then describes the application of this approach within the implementation of the Adaptive Mixed Reality Rehabilitation (AMRR) system for stroke rehabilitation.
  
  
  CONCLUSIONS
  The accompanying principles for composing novel mixed reality environments for stroke rehabilitation can advance the design and implementation of effective mixed reality systems for the clinical setting, and ultimately be adapted for home-based application. They furthermore can be applied to other rehabilitation needs beyond stroke.
authors.affiliation: School of Arts, Media and Engineering, Arizona State University, Tempe, AZ, USA. nicole.lehrer@asu.edu
authors.forename: Nicole
authors.initials: N
authors.lastname: Lehrer
authors.forename: Suneth
authors.initials: S
authors.lastname: Attygalle
authors.forename: Steven L
authors.initials: SL
authors.lastname: Wolf
authors.forename: Thanassis
authors.initials: T
authors.lastname: Rikakis
mesh_terms: D001676:Biofeedback, Psychology / Q000295:instrumentation / Q000379:methods; D017408:Guidelines as Topic; D006801:Humans; D007858:Learning / Q000502:physiology*; D026741:Physical Therapy Modalities; D011597:Psychomotor Performance / Q000502:physiology*; D000071939:Stroke Rehabilitation; D014584:User-Computer Interface