In her 2010 book Delusions of Gender, the psychologist Cordelia Fine coins the term ‘neurosexism’ to describe scientific studies that fall back on gender stereotypes, even when these stereotypes are themselves unproven. Ruben Gur’s 2014 study on sex differences in white matter between men and women, Gina Rippon tells me, is among those that deserve to be described as ‘extremely neurosexist’.