Facial Activation Control Effect (FACE)

Authors:
Toni Vanhala;Veikko Surakka
Affiliations:
Research Group for Emotions, Sociality, and Computing, Tampere Unit for Human-Computer Interaction, FIN-33014 University of Tampere, Finland;Research Group for Emotions, Sociality, and Computing, Tampere Unit for Human-Computer Interaction, FIN-33014 University of Tampere, Finland and Tampere University Hospital, Department of Clinical ...
Venue:
ACII '07 Proceedings of the 2nd international conference on Affective Computing and Intelligent Interaction
Year:
2007

Citing 8
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Abstract

The present study was the first in line of a series of experiments investigating the possibilities of using voluntarily produced physiological signals in computer-assisted therapy. The current aim was to find out whether computer-guided voluntary facial activations have an effect on autonomous nervous system activity. Twenty-seven participants performed a series of voluntary facial muscle activations, while wireless electrocardiography and subjective experiences were recorded. Each task consisted of activating either the corrugator superciliimuscle (activated when frowning) or the zygomaticus majormuscle (activated when smiling) at one of three activation intensities (i.e. low, medium, and high). Our results showed a voluntary facial activation control effect (FACE) on psychological (i.e. level of experience) and physiological activity. Different muscle activations produced both task-specific emotional experiences and significant changes in heart rate and heart rate variability. Low intensity activations of both muscles were the most effective, easy to perform, and pleasant. We conclude that the FACE can clearly open the route for regulating involuntary physiological processes.