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Article

Short alleles, bigger smiles? The effect of 5-HTTLPR on positive emotional expressions.

Emotion (Washington, D.C.) - 1 Aug 2015

Haase Claudia M, Beermann Ursula, Saslow Laura R, Shiota Michelle N, Saturn Sarina R, Lwi Sandy J, Casey James J, Nguyen Nguyen K, Whalen Patrick K, Keltner Dacher, Levenson Robert W

Abstract excerpt

The present research examined the effect of the 5-HTTLPR polymorphism in the serotonin transporter gene on objectively coded positive emotional expressions (i.e., laughing and smiling behavior objectively coded using the Facial Action Coding System). Three studies with independent samples of participants were conducted. Study 1 examined young adults watching still cartoons. Study 2 examined young, middle-aged,...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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Identifiers

PMID: 26029940
DOI: 10.1037/emo0000074
PMCID: PMC4861141

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