User—robot personality matching and assistive robot behavior adaptation for post-stroke rehabilitation therapy

  • Adriana Tapus
  • Cristian ŢăpuşEmail author
  • Maja J. Matarić
Special Issue


This paper describes a hands-off socially assistive therapist robot designed to monitor, assist, encourage, and socially interact with post-stroke users engaged in rehabilitation exercises. We investigate the role of the robot’s personality in the hands-off therapy process, focusing on the relationship between the level of extroversion–introversion of the robot and the user. We also demonstrate a behavior adaptation system capable of adjusting its social interaction parameters (e.g., interaction distances/proxemics, speed, and vocal content) toward customized post-stroke rehabilitation therapy based on the user’s personality traits and task performance. Three validation experiment sets are described. The first maps the user’s extroversion–introversion personality dimension to a spectrum of robot therapy styles that range from challenging to nurturing. The second and the third experiments adjust the personality matching dynamically to adapt the robot’s therapy styles based on user personality and performance. The reported results provide first evidence for user preference for personality matching in the assistive domain and demonstrate how the socially assistive robot’s autonomous behavior adaptation to the user’s personality can result in improved human task performance.


Rehabilitation robotics Socially assistive robotics Social human–robot interaction Learning and adaptive systems 


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Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Adriana Tapus
    • 1
  • Cristian Ţăpuş
    • 2
    Email author
  • Maja J. Matarić
    • 1
  1. 1.Robotics Research Lab/Interaction Lab, Department of Computer ScienceUniversity of Southern CaliforniaLos AngelesUSA
  2. 2.Mojave Research Lab, Department of Computer ScienceCalifornia Institute of Technology (Caltech)PasadenaUSA

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