Attending to attention: Reverse correlation reveals subtle cues to attentiveness in others' faces

Area of Science:

• Cognitive Psychology
• Social Perception
• Facial Expression Analysis

Background:

• Perceiving cognitive states, like attentiveness, from faces is crucial for social interaction and assessing potential environmental influences.
• Understanding how humans interpret facial cues related to attentiveness is fundamental to social cognition.

Purpose of the Study:

• To investigate the specific facial features that influence the perception of attentiveness in others.
• To uncover both intuitive and counterintuitive visual cues used in judging a person's attentiveness.

Main Methods:

• Utilized reverse correlation, a data-driven technique, to analyze internal representations of facial perception.
• Conducted two online studies with 200 observers each, presenting faces with noise and requiring attentiveness judgments.
• Employed automated facial landmark extraction on classification images to identify key perceptual determinants.

Main Results:

• Direct eye gaze and larger pupils were identified as straightforward cues for perceived attentiveness.
• Novel and robust cues, such as darker nostrils, were found to significantly influence attentiveness judgments.
• Facial cues profoundly impact impressions of attentiveness, demonstrating attention as a perceivable attribute.

Conclusions:

• Facial perception of attentiveness relies on a combination of expected and surprising visual cues.
• Subtle facial features, like nostril appearance, play a significant role in social judgments of cognitive states.
• Attention is not only a cognitive process but also a visually perceivable characteristic conveyed through facial morphology.