The hollow-face illusion monocularly observed in a box

• Autor(a) principal: QUAGLIA, Maria Amélia Cesari
• Data de Publicação: 2014
• Outros Autores: BACHETTI, Lívia da Silva, ALVES, Arthur
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Estudos de Psicologia (Campinas)
• Texto Completo: https://periodicos.puc-campinas.edu.br/estpsi/article/view/8452
• topic: Face perception; Depth perception; Visual perception; Percepção de face; Percepção de profundidade; Percepção visual

Under monocular conditions, 40 students observed the reverse of polychrome and monochrome masks and judged them to be concave, convex or flat. The mask was presented upright and illuminated from above, below, right and left and in the upside down position illuminated from below. The magnitude of the perceived depth or relief was estimated using a retractable tape measure. Regardless of color, lighting and orientation, the majority of responses indicated that the hollow masks were perceived to be convex. No significant differences were observed between the depth or convexity of the metric magnitudes and scalar magnitudes of the concave masks in relation to variations in the light source direction, color, and position. The illusory depth, seeing the concave mask as convex, is a robust phenomenon that suggests the predominant role of higher-order processes over the low-order processes in visual face perception.