It Depends Who Is Watching You: 3-D Agent Cues Increase Fairness

Area of Science:

• Psychology
• Social Neuroscience
• Behavioral Economics

Background:

• Exposure to cues of intentional agents, particularly eyes, has been shown to promote prosocial behavior in laboratory settings.
• Previous research predominantly utilized two-dimensional (2D) stimuli, leaving the impact of spatial properties on this effect unexplored.

Purpose of the Study:

• To investigate the influence of dimensionality (3D vs. 2D) of agency cues on prosocial behavior and fairness.
• To examine whether spatial properties of environmental cues affect decision-making in a naturalistic setting.

Main Methods:

• A decision-making task was conducted with 345 participants in a naturalistic environment.
• Experimental conditions included a 3D human head model, a 2D picture of the same head, a real plant, and a 2D image of the plant.
• Behavioral responses were recorded to assess prosocial outcomes.

Main Results:

• Prosocial behavior was significantly increased when participants were exposed to 3D agency cues (human head model).
• No significant increase in prosocial behavior was observed with 2D agency cues (picture of the head).
• Control stimuli (plant and its 2D image) did not elicit significant changes in prosocial behavior.

Conclusions:

• Dimensionality of agency cues is a critical factor influencing prosocial behavior in real-world contexts.
• Three-dimensional agency cues are more effective than two-dimensional cues in promoting fairness and prosociality.
• Morphological properties of environmental cues play a significant role in shaping human decision-making.