Title
Robot Nonverbal Behavior Improves Task Performance In Difficult Collaborations.
Abstract
Nonverbal behaviors increase task efficiency and improve collaboration between people and robots. In this paper, we introduce a model for generating nonverbal behavior and investigate whether the usefulness of nonverbal behaviors changes based on task difficulty. First, we detail a robot behavior model that accounts for top-down and bottom-up features of the scene when deciding when and how to perform deictic references (looking or pointing). Then, we analyze how a robot's deictic nonverbal behavior affects people's performance on a memorization task under differing difficulty levels. We manipulate difficulty in two ways: by adding steps to memorize, and by introducing an interruption. We find that when the task is easy, the robot's nonverbal behavior has little influence over recall and task completion. However, when the task is challenging---because the memorization load is high or because the task is interrupted---a robot's nonverbal behaviors mitigate the negative effects of these challenges, leading to higher recall accuracy and lower completion times. In short, nonverbal behavior may be even more valuable for difficult collaborations than for easy ones.
Year
DOI
Venue
2016
10.1109/HRI.2016.7451733
HRI
Keywords
Field
DocType
task performance,task efficiency,people-robots collaboration,task difficulty,robot behavior model,deictic references,robot deictic nonverbal behavior,memorization task,task completion,memorization load,recall accuracy
Gesture,Simulation,Computer science,Robot kinematics,Nonverbal communication,Human–computer interaction,Behavior-based robotics,Robot,Recall,Memorization,Human–robot interaction
Conference
ISSN
ISBN
Citations 
2167-2121
978-1-4673-8370-7
7
PageRank 
References 
Authors
0.44
17
4
Name
Order
Citations
PageRank
Henny Admoni113621.05
Thomas Weng221016.64
Bradley Hayes3659.58
B. Scassellati41735241.11