AUTHOR=Wang Lei , Zhang Xiaoshuang , Li Lu , Meng Liang TITLE=Taking Others as a Mirror: Contingent Social Comparison Promotes Task Engagement JOURNAL=Frontiers in Human Neuroscience VOLUME=12 YEAR=2018 URL=https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2018.00476 DOI=10.3389/fnhum.2018.00476 ISSN=1662-5161