The author, who is also part of an interdisciplinary research group called PseudoLab

Presenting the findings of my new scientific research group, Bad Science LLC.

...but seriously I guess it's mildly interesting but entirely predictable that right- and left-wing brains have physical differences from each other and from more centrist types. That's just materialism being proven correct once again. But I wouldn't put any stock at all into the association between parts of the brain and specific personality traits because personality traits are far too squishy and hard to measure to be meaningfully correlated with the size of your post-anterior phalanges or whatever.