Hutchison, Jeffrey J. and Jack M. Loomis. “Reply to Proffitt, Stefanucci, Banton, and Epstein”. The Spanish Journal of Psychology, vol. 9, vol. 9, no. 2, 2006, pp. 343-5, https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0606220343A.