G. Calvo, Manuel, and M. Dolores Castillo. “Processing of Threat-Related Information Outside the Focus of Visual Attention”. The Spanish Journal of Psychology 8, no. 1 (April 21, 2005): 3–11. Accessed November 18, 2024. https://revistas.ucm.es/index.php/SJOP/article/view/SJOP0505120003A.