“…In line with previous work investigating sexually-dimorphic face preferences (DeBruine et al, 2006;Jones et al, 2007;Welling et al, 2007Welling et al, , 2008Welling et al, , 2013, the present study used prototype-based image transformations in order to objectively manipulate sexual dimorphism of 2D shape in facial images, creating masculinized and feminized images of the same individual that are matched for other variables (e.g., skin color, identity, texture: Rowland & Perrett, 1995). Briefly, prototype images (i.e., an average male face and an average female face) were created by averaging a group of male and a group of female images via widely-used computational methods in face perception studies (e.g., Jones et al, 2005;Penton-Voak et al, 1999;Welling et al, 2007). Once prototypes are established, individual stimuli are created by adding or subtracting a percentage of the differences in position between the prototype images from the corresponding points on a third face (for technical details see Rowland & Perrett, 1995;Tiddeman, Burt, & Perrett, 2001).…”