The persuasive power of robot touch. Behavioral and evaluative consequences of non-functional touch from a robot

The unique physical embodiment of robots enables physical contact between machines and humans. Since interpersonal touch research has demonstrated that touch has several positive behavioral (e.g., reduced stress, better immune functioning) as well as evaluative consequences (e.g., better evaluation...

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Bibliographic Details
Published in:PloS one 2021-05, Vol.16 (5), p.e0249554
Main Authors: Hoffmann, Laura, Krämer, Nicole C
Format: Article
Language:English
Subjects:
Adolescent
Adult
Attitude
Behavior
Biology and Life Sciences
Body parts
Engineering and Technology
Female
Grippers
Health aspects
Innovations
Medicine and Health Sciences
Medieval period
Physiology
Robotics
Robots
Social Sciences
Stress management
Tactile stimuli
Touch
Young Adult
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Summary:The unique physical embodiment of robots enables physical contact between machines and humans. Since interpersonal touch research has demonstrated that touch has several positive behavioral (e.g., reduced stress, better immune functioning) as well as evaluative consequences (e.g., better evaluation of the initiator of touch), the question arises whether touch from a humanoid robot, the body of which is somewhat similar to that of a human, can evoke similar effects. To answer this question, we conducted a between-subjects experiment in the laboratory with n = 48 students who encountered a humanoid robot (Softbank Robotics' NAO) that either did or did not touch their hand in a non-functional manner during a counseling conversation. The analyses of participants' behavior revealed that they mostly reacted by smiling and laughing. Furthermore, participants who were touched by the robot complied significantly more frequently with a request posed by the robot during conversation, and reported better feelings compared to those who were not touched. However, there were no effects of robot touch on subjective evaluations of the robot or on the interaction experience.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0249554