Efectos en la amplitud y la latencia del componente N170 ante la presentación de rostros emocionales de ira y miedo

• Autores: Carlos Fidel Mauricio Bonilla Carreño, Juan David Leongómez Peña
• Localización: Psychología: Avances de la Disciplina, ISSN-e 1900-2386, Vol. 11, Nº. 1, 2017, págs. 39-48
• Idioma: español
• DOI: 10.21500/19002386.3100
• Títulos paralelos:
  • effects of the presentation of fear and anger emotional faces on the amplitude and latency of the n170 component
• Enlaces
  • Texto completo (pdf)
• Resumen
  • español

    La discriminación de las emociones expresadas a nivel facial es importante para las relaciones sociales, la empatía y la interacción social. El objetivo de este estudio fue observar si existían diferencias en el procesamiento cortical ante dos emociones básicas, la ira y el miedo y definir si la percepción de la ira intensa genera una mayor modulación del componente N170 en amplitud y latencia en comparación con las imágenes de rostros con expresión de miedo intenso. Para este estudio se utilizó la técnica de potenciales evocados con un montaje de 32 canales. Se encontraron diferencias significativas en latencia para las imágenes de rostros que expresan ira intensa, comparados con la condición de imágenes de rostros de miedo intenso. Se encontraron diferencias tanto de la amplitud como de latencia ante imágenes de rostros de ira y miedo intensos en comparación con imágenes de rostros neutros.

  • English

    The discrimination of emotions expressed by the facial expressions is important for social relationships, empathy and social interactions.

    The main aim of this study was to study whether there were differences in the cortical processing to two basic emotions, anger and fear, and whether the perception of intense anger generates a higher modulation in amplitude and latency of the N170 component than intense fear.

    The technique used was event related potentials with a 32-channel montage. We found significant differences in the latency for images of faces expressing intense anger compared to the condition of images of faces of intense fear, as well as differences in amplitude in latency in response to the presentation of neutral faces in comparison to intense anger and fear.

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