A meta-analysis of the facilitation of arm flexion and extension movements as a function of stimulus valence
Cognition & Emotion (2015) - Comment
pubmed: 25345558  doi: 10.1080/02699931.2014.968096  issn: 0269-9931  issn: 1464-0600 

Simon M. Laham, Yoshihisa Kashima, Jennifer Dix, Melissa Wheeler