Individual differences in activation of the parental care motivational system: assessment, prediction, and implications
Journal of Personality and Social Psychology (2015) - Comment
pubmed: 25559194  doi: 10.1037/pspp0000023  issn: 1939-1315  issn: 0022-3514 

Erin E. Buckels, Alec T. Beall, Marlise K. Hofer, Eden Y. Lin, Zenan Zhou, Mark Schaller