Publication: Detectando caras en un contexto de sorpresa e incertidumbre
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Date
2022
Authors
Gordillo León, Fernando ; Mestas Hernández, Lilia ; Fernández Núñez, Miguel ; Pérez Nieto, Miguel Ángel ; Arana Martínez, José M.
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Publisher
Universidad de Murcia. Servicio de Publicaciones
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Description
Abstract
Las expresiones de amenaza son detectadas con rapidez y preci-sión, advirtiendo a quienes las observan de la presencia de un potencial pe-ligro. Durante el proceso de detección, la expresión de sorpresa podría ju-gar un papel importante como clave de orientación en condiciones de in-certidumbre donde se requiere una respuesta rápida y precisa. Con el obje-tivo de analizar este supuesto se plateó un experimento en el que participa-ron 70 sujetos que realizaron una tarea de señalización espacial, donde se utilizaron expresiones faciales de sorpresa (vs. neutra) como claves de orientación, y expresiones faciales de miedo, ira, alegría y neutras como es-tímulos objetivo. Los resultados mostraron un efecto facilitador de la ex-presión de sorpresa solo en la detección de la expresión de ira, reduciendo los tiempos de respuesta y el porcentaje de errores. Los datos apuntan a que la expresión de sorpresa, cuando se procesa como un estímulo inde-pendiente, podría facilitar la detección de aquellos estímulos que supongan una amenaza directa, como la expresión de ira, siendo esta distinción clave para entender en qué condiciones se detecta más eficazmente la expresión de ira respecto a otro tipo de expresiones.
Threatening expressions are detected quickly and accurately, warning the observer of the presence of a potential danger. During the de-tection process, a facial expression of surprise could play an important role as a cue for orientation in conditions of uncertainty that call for a swift and precise response. With a view to analysing this contingency, an experiment was conducted in which 70 subjects undertook a spatial cueing task that involved facial expressions of surprise (vs. neutral ones) as orientation cues, and facial expressions of fear, anger and happiness as target stimuli. The results revealed a priming effect of the expression of surprise solely in the detection of the expression of anger, reducing response times and the percentage of errors. The data indicate that the expression of surprise, when processed as an independent stimulus, could prime the detection of those stimuli that constitute a direct threat, such as the expression of anger, with this being a crucial distinction for understanding the circumstances in which the expression of anger is detected more effectively than other kinds of expressions.
Threatening expressions are detected quickly and accurately, warning the observer of the presence of a potential danger. During the de-tection process, a facial expression of surprise could play an important role as a cue for orientation in conditions of uncertainty that call for a swift and precise response. With a view to analysing this contingency, an experiment was conducted in which 70 subjects undertook a spatial cueing task that involved facial expressions of surprise (vs. neutral ones) as orientation cues, and facial expressions of fear, anger and happiness as target stimuli. The results revealed a priming effect of the expression of surprise solely in the detection of the expression of anger, reducing response times and the percentage of errors. The data indicate that the expression of surprise, when processed as an independent stimulus, could prime the detection of those stimuli that constitute a direct threat, such as the expression of anger, with this being a crucial distinction for understanding the circumstances in which the expression of anger is detected more effectively than other kinds of expressions.
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