Literature DB >> 16185829

Origins of smile and laughter: a preliminary study.

Kiyobumi Kawakami1, Kiyoko Takai-Kawakami, Masaki Tomonaga, Juri Suzuki, Tomiyo Kusaka, Takashi Okai.   

Abstract

To present fundamental data, spontaneous smiles and spontaneous laughs (smiles accompanied by vocal sounds) were cross-sectionally observed in 10 newborn infants and longitudinally observed in six infants. Unilateral spontaneous smiles were more common than bilateral smiles in neonates, but by 2 months almost all spontaneous smiles were bilateral. All spontaneous laughs were bilateral. "Spontaneous smile" and "Spontaneous laugh" might be different behaviors from the beginning.

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Year:  2005        PMID： 16185829     DOI： 10.1016/j.earlhumdev.2005.07.011

Source DB:  PubMed          Journal:  Early Hum Dev        ISSN： 0378-3782            Impact factor:   2.079


  4 in total

1.  The first smile: spontaneous smiles in newborn Japanese macaques (Macaca fuscata).

Authors:  Fumito Kawakami; Masaki Tomonaga; Juri Suzuki
Journal:  Primates       Date:  2016-08-02       Impact factor: 2.163

Review 2.  Gender differences in emotion expression in children: a meta-analytic review.

Authors:  Tara M Chaplin; Amelia Aldao
Journal:  Psychol Bull       Date:  2012-12-10       Impact factor: 17.737

3.  Laughter and smiling facial expression modelling for the generation of virtual affective behavior.

Authors:  Miquel Mascaró; Francisco J Serón; Francisco J Perales; Javier Varona; Ramon Mas
Journal:  PLoS One       Date:  2021-05-12       Impact factor: 3.240

4.  Acute stimulation effect of the ventral capsule/ventral striatum in patients with refractory obsessive-compulsive disorder - a double-blinded trial.

Authors:  Hsin-Chi Tsai; Chun-Hung Chang; Jiann-I Pan; Hung-Jen Hsieh; Sheng-Tzung Tsai; Hsiang-Yi Hung; Shin-Yuan Chen
Journal:  Neuropsychiatr Dis Treat       Date:  2014-01-06       Impact factor: 2.570
  4 in total

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