"While there has been a general consensus that microexpressions play a significant role in deception detection for decades, in reality there had never been a research study published in a peer-reviewed, scientific journal that documented that claim.
There had been some doubt shed on Dr Amy Cuddy's research on power poses and this study vindicates her original work. Power poses do work.
It was a meta-analysis of 73 studies, conducted by an independent research team. Effects on emotions & behaviors are “robust.”