A memory advantage for untrustworthy faces.

Area of Science:

• Cognitive Psychology
• Social Perception
• Facial Recognition Memory

Background:

• Social trait inferences from faces shape interpersonal interactions.
• The impact of perceived social traits on downstream cognitions, like memory, is under-explored.
• Trustworthiness is a key social trait inferred from faces.

Purpose of the Study:

• To investigate the relationship between perceived facial social traits and memory.
• To determine if trustworthiness inferences from faces affect memory recall.
• To compare memory for faces varying in trustworthiness and other social traits.

Main Methods:

• Participants encoded faces varying in perceived trustworthiness and other social traits (dominance, maturity, likeability).
• Memory recall for these faces was assessed.
• Trustworthiness information was also derived from behavioral descriptions for comparison with facial cues.

Main Results:

• Faces perceived as untrustworthy were remembered significantly better than trustworthy faces.
• Unlikeable faces were also better remembered, while dominance and facial maturity did not affect memory.
• The memory advantage for untrustworthy targets was stronger for facial cues than for behavioral descriptions.

Conclusions:

• Facial cues signaling untrustworthiness enhance memory recall.
• Ecological perception theories suggest trustworthiness cues guide memory formation during first impressions.
• This highlights a potential adaptive function of memory biases in social cognition.