TY - JOUR
T1 - The other person’s smiling amount affects one’s smiling response during face-to-face conversations
AU - Obayashi, Yota
AU - Uehara, Shintaro
AU - Yuasa, Akiko
AU - Otaka, Yohei
N1 - Publisher Copyright:
Copyright © 2024 Obayashi, Uehara, Yuasa and Otaka.
PY - 2024
Y1 - 2024
N2 - Introduction: Smiling during conversation occurs interactively between people and is known to build good interpersonal relationships. However, whether and how much the amount that an individual smiles is influenced by the other person’s smile has remained unclear. This study aimed to quantify the amount of two individuals’ smiles during conversations and investigate the dependency of one’s smile amount (i.e., intensity and frequency) on that of the other. Method: Forty participants (20 females) engaged in three-minute face-to-face conversations as speakers with a listener (male or female), under three conditions, where the amount of smiling response by listeners was controlled as “less,” “moderate,” and “greater.” The amount of the smiles was quantified based on their facial movements through automated facial expression analysis. Results: The results showed that the amount of smiling by the speaker changed significantly depending on the listener’s smile amount; when the listeners smiled to a greater extent, the speakers tended to smile more, especially when they were of the same gender (i.e., male–male and female–female pairs). Further analysis revealed that the smiling intensities of the two individuals changed in a temporally synchronized manner. Discussion: These results provide quantitative evidence for the dependence of one’s smile on the other’s smile, and the differential effect between gender pairs.
AB - Introduction: Smiling during conversation occurs interactively between people and is known to build good interpersonal relationships. However, whether and how much the amount that an individual smiles is influenced by the other person’s smile has remained unclear. This study aimed to quantify the amount of two individuals’ smiles during conversations and investigate the dependency of one’s smile amount (i.e., intensity and frequency) on that of the other. Method: Forty participants (20 females) engaged in three-minute face-to-face conversations as speakers with a listener (male or female), under three conditions, where the amount of smiling response by listeners was controlled as “less,” “moderate,” and “greater.” The amount of the smiles was quantified based on their facial movements through automated facial expression analysis. Results: The results showed that the amount of smiling by the speaker changed significantly depending on the listener’s smile amount; when the listeners smiled to a greater extent, the speakers tended to smile more, especially when they were of the same gender (i.e., male–male and female–female pairs). Further analysis revealed that the smiling intensities of the two individuals changed in a temporally synchronized manner. Discussion: These results provide quantitative evidence for the dependence of one’s smile on the other’s smile, and the differential effect between gender pairs.
KW - conversation
KW - facial expression
KW - interaction
KW - mimicry
KW - smile
UR - http://www.scopus.com/inward/record.url?scp=85201813106&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85201813106&partnerID=8YFLogxK
U2 - 10.3389/fnbeh.2024.1420361
DO - 10.3389/fnbeh.2024.1420361
M3 - Article
AN - SCOPUS:85201813106
SN - 1662-5153
VL - 18
JO - Frontiers in Behavioral Neuroscience
JF - Frontiers in Behavioral Neuroscience
M1 - 1420361
ER -