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Larger faces increase fear judgments and emotion specificity. Eye tracking reveals larger faces lead to more focused eye fixations on the eyes, impacting emotion perception.

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Area of Science:

  • Cognitive Psychology
  • Visual Perception
  • Emotion Recognition

Background:

  • Faces are primary stimuli for emotion research.
  • Previous studies manipulated emotion content, not low-level features like size.
  • The impact of face size on emotion judgment is understudied.

Purpose of the Study:

  • To investigate if variations in face size influence emotion judgment.
  • To explore the relationship between face size, eye movement, and emotion perception.
  • To highlight the importance of controlling stimulus size in emotion research.

Main Methods:

  • Participants judged emotions in fear-happy morphed faces.
  • Stimulus face size was systematically varied.
  • High-resolution eye tracking monitored visual attention patterns.

Main Results:

  • Larger faces led to increased fear judgments and higher emotion specificity.
  • Eye tracking showed more fixations on the eyes with larger faces.
  • Eye movement patterns differed significantly based on face size, independent of morph or ambiguity levels.

Conclusions:

  • Face size is a critical low-level feature affecting emotion judgment.
  • Emotion perception is linked to specific eye movement patterns.
  • Standardizing stimulus size is crucial for reliable emotion judgment studies.