1. Effects of Brief Interactions with Male Experimenters Shortly Before and During the Trier Social Stress Test on Study Participants’ Testosterone Salivary Concentrations

   • Eunhye Kim
   • Nora Nickels
   • Dario Maestripieri

   ORIGINAL ARTICLE 25 April 2018 Pages: 329 - 343

   

2. Male and Female Nipples as a Test Case for the Assumption that Functional Features Vary Less than Nonfunctional Byproducts

   • Ashleigh J. Kelly
   • Shelli L. Dubbs
   • Brendan P. Zietsch

   ORIGINAL ARTICLE 26 June 2018 Pages: 344 - 353

   

3. The Effect of Negative Implicit Affect, Prime Visibility, and Gender on Effort-Related Cardiac Response

   • David Framorando
   • Guido H. E. Gendolla

   ORIGINAL ARTICLE 13 July 2018 Pages: 354 - 363

   

4. Mate Choice Copying in Humans: a Systematic Review and Meta-Analysis

   • Amany Gouda-Vossos
   • Shinichi Nakagawa
   • Robert C. Brooks

   ORIGINAL ARTICLE 24 July 2018 Pages: 364 - 386

   

5. Social Working Memory Predicts Social Network Size in Humans

   • Sonia A. Krol
   • Meghan L. Meyer
   • Jennifer A. Bartz

   ORIGINAL ARTICLE 27 July 2018 Pages: 387 - 399

   

6. The Influence of Genetic Variation on Social Disposition, Romantic Relationships and Social Networks: a Replication Study

   • Eiluned Pearce
   • Rafael Wlodarski
   • Robin I. M. Dunbar

   ORIGINAL ARTICLE Open access 29 August 2018 Pages: 400 - 422