Social inferences from faces: ambient images generate a three-dimensional model

Area of Science:

• Psychology
• Social Psychology
• Perception

Background:

• The valence/trustworthiness by dominance model explains social inferences from faces (Oosterhof & Todorov, 2008).
• Previous research utilized limited face stimuli, potentially obscuring the full structure of social perception.

Purpose of the Study:

• To investigate the robustness of the valence/trustworthiness by dominance model using a large, diverse set of ambient face images.
• To explore the underlying structure of social inferences derived from realistic facial stimuli.

Main Methods:

• Image averaging and morphing techniques were employed on 1000 ambient face images.
• Factor analysis was used to identify dimensions underlying social inferences.
• Cross-validation was performed using constructed face averages.

Main Results:

• Consistent facial cues were found to support various social inferences.
• The original two dimensions (trustworthiness, dominance) were replicated.
• A novel 'youthful-attractiveness' dimension emerged, alongside the original two, forming a three-dimensional model.

Conclusions:

• The study validates the utility of trustworthiness and dominance dimensions in social face perception.
• Using diverse, realistic face images reveals a more elaborate structure of social inferences than previously suggested.
• Future research should utilize varied face stimuli to fully understand social perception.