Paper: <a href="http://pss.sagepub.com/content/early/2016/07/19/0956797616654912.abstract" rel="nofollow">http://pss.sagepub.com/content/early/2016/07/19/095679761665...</a><p>The results themselves are not particularly new though; he has been working on similar studies for years.
<a href="http://act-r.psy.cmu.edu/wordpress/wp-content/uploads/2013/10/cogs12068.pdf" rel="nofollow">http://act-r.psy.cmu.edu/wordpress/wp-content/uploads/2013/1...</a>