• Discrimination between smiling faces: Human observers vs. automated face analysis 

      Del Líbano, Mario; Calvo, Manuel G; Fernández-Martín, Andrés (1); Recio, Guillermo (Acta Psychologica, 06/2018)
      This study investigated (a) how prototypical happy faces (with happy eyes and a smile) can be discriminated from blended expressions with a smile but non-happy eyes, depending on type and intensity of the eye expression; ...
    • Human Observers and Automated Assessment of Dynamic Emotional Facial Expressions: KDEF-dyn Database Validation 

      Calvo, Manuel G; Fernández-Martín, Andrés (1); Recio, Guillermo; Lundqvist, Daniel (Frontiers in Psychology, 26/10/2018)
      Most experimental studies of facial expression processing have used static stimuli (photographs), yet facial expressions in daily life are generally dynamic. In its original photographic format, the Karolinska Directed ...
    • Recognition Thresholds for Static and Dynamic Emotional Faces 

      Calvo, Manuel G; Avero, Pedro; Fernández-Martín, Andrés (1); Recio, Guillermo (Emotion, 12/2016)
      We investigated the minimum expressive intensity that is required to recognize (above chance) static and dynamic facial expressions of happiness, sadness, anger, disgust, fear, and surprise. To this end, we varied the ...
    • Social anxiety and perception of (un)trustworthiness in smiling faces 

      Gutiérrez-García, Aida (1); Calvo, Manuel G (Psychiatry Research, 10/2016)
      In social environments the smile can be driven by different motives and convey different emotions. This makes a smiling face ambiguous and amenable to alternative interpretations. We investigated how social anxiety is ...
    • Social anxiety and trustworthiness judgments of dynamic facial expressions of emotion 

      Gutiérrez-García, Aida (1); Calvo, Manuel G (Journal of Behavior Therapy and Experimental Psychiatry, 09/2016)
      Background and objectives: Perception of trustworthiness in other people is essential for successful social interaction. Facial expressions as conveyers of feelings and intentions are an important source of this information. ...
    • The contribution of facial regions to judgements of happiness and trustworthiness from dynamic expressions 

      Calvo, Manuel G; Álvarez-Plaza, Patricia; Fernández-Martín, Andrés (1) (Journal of Cognitive Psychology, 2017)
      What expressive facial features and processing mechanisms make a person look trustworthy, relative to happy? Participants judged the un/happiness or un/trustworthiness of people with dynamic expressions in which the eyes ...
    • Trustworthiness of a smile as a function of changes in the eye expression 

      Fernández-Martín, Andrés (1); Álvarez-Plaza, Patricia; Carqué, Laura; Calvo, Manuel G (Psicothema, 11/2017)
      Background: Trusting other people is necessary for satisfactory and successful social interaction. A person’s perceived trustworthiness is related to perceived facial happiness. We investigated how trustworthy someone ...