Smiling during talking yields speech with higher formants, and hence larger formant dispersion. Previous studies have shown that motor resonance during perception of words related to smiling can activate muscles responsible for the smiling action. If word perception causes smiling activation for such smile-related words, then this motor resonance may occur also during production, resulting in l...

In positive social contexts, both adults and older infants show more Duchenne smiling (which involves high cheek raising) than non-Duchenne smiling (which does not). This study compared Duchenne and non-Duchenne smiles in early infancy for clues to their emotional significance. Infants (N = 13) from 1 to 6 months of age were videotaped weekly for 5 min in 208 face-to-face interactions with thei...

Much research has been done on travelers’ emotions and behavioral intentions during the visit stage post-visit stage. This paper, however, investigates importance of in pre-visit social media communication how they influence intention to word-of-mouth communication. Two laboratory experiments (n = 211 n 137) a field study 270) were conducted tourism destination midst Alps test proposed model. F...

This study investigated the effect of smiling and of head tilting on person perception. Brazilian undergraduates (N = 322) judged a slide of a male or female stimulus person, smiling or not, and with the head tilted or not. The independent variables were (a) subject's gender, (b) stimulus person's gender; (c) head posture (tilted vs. upright), and (d) facial expression (no smile, closed smile, ...

This study examines the effect of smiling on GOAT fronting, a sound change common to many varieties of American English. The data are audiovisual recordings of ten speakers of American English recorded in dyadic conversations in an interactional sociophonetics laboratory. We applied an existing computer vision algorithm for smile detection to the video recordings to identify smiling intervals. ...

The aim of the study was to analyze cross-cultural differences in preference for smiling among the users of one of the most popular instant messaging sites called Windows Live Messenger in terms of facial expression (smiling vs. non-smiling) on the photographs accompanying their profiles. 2,000 photos from 10 countries were rated by two independent judges. Despite the fact that 20 years have pa...

The present research examines the impact of smiling on attitude change. Participants were first exposed to a story that elicited mostly positive thoughts (about an employee’s good day at work) or negative thoughts (about an employee’s bad day at work). After writing down their thoughts, participants were asked to hold a pen with their teeth (smile) or with their lips (control). Finally, all par...

When do infants begin to communicate positive affect about physical objects to their social partners? We examined developmental changes in the timing of smiles during episodes of initiating joint attention that involved an infant gazing between an object and a social partner. Twenty-six typically developing infants were observed at 8, 10, and 12 months during the Early Social-Communication Scal...

Three studies examined the hypothesis that the relation between self-rated happy affect and overall smiling during dyadic interactions is moderated by one's relative power. In all 3 studies, interpersonal power was experimentally manipulated, and smiling and self-reported happy affect were measured during and after the interaction, respectively. Happy affect was positively correlated with overa...

This study investigated whether the old adage “grin and bear it” has proven value by testing how covert and overt manipulation of facial expression influences affective and physiological responses to stress. One hundred and sixty-nine healthy college students were recruited for a “multitasking study,” which involved holding chopsticks in the mouth while simultaneously completing two stressful t...