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A behavioral advantage for the face pareidolia illusion in peripheral vision
Blake W Saurels1, Natalie Peluso1, Jessica Taubert2
1School of Psychology, The University of Queensland, St Lucia, Queensland, Australia.
Scientific Reports
|May 1, 2024
Summary
Face pareidolia illusions, the misperception of faces in objects, may stem from rapid face detection errors. This illusion persists in peripheral vision, suggesting it
Area of Science:
- Cognitive psychology
- Neuroscience
- Visual perception
Background:
- Visual illusions offer insights into visual information processing.
- Face pareidolia, perceiving faces in inanimate objects, may illuminate real face processing.
- The origin of face pareidolia—rapid detection errors versus slower cognitive processes—remains debated.
Purpose of the Study:
- To investigate whether face pareidolia arises from rapid face detection mechanisms.
- To determine if illusory faces influence visual search behavior.
Main Methods:
- Continuous eye movements were recorded during a saccadic choice task.
- Participants identified targets (faces or food items) under varying spatial conditions.
- Stimuli were presented near the fixation point or in the visual periphery.
Main Results:
- Participants were faster to identify face targets than food targets.
- An advantage for illusory faces in food items was observed, but only in peripheral viewing conditions.
- Face pareidolia was demonstrated to persist in peripheral visual fields.
Conclusions:
- The face pareidolia illusion appears to be a result of erroneous, rapid face detection mechanisms.
- These findings suggest that the brain's face detection system is susceptible to illusory stimuli, particularly in peripheral vision.
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