Fig. 2.

Example of stimulus warping manipulation used in Study 2: In this example, warping is accomplished by structurally averaging a neutral image with its corresponding anger expression to generate a 50/50 average of its structural components, while holding the neutral image’s texture map constant. The resultant image shares a structural resemblance with the original anger expression, but is not overtly expressive. This figure has been reproduced, with permission, from the Montreal Set of Facial Displays, see Beaupré and Hess (2005)