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Perceptual asymmetry for chimeric faces across the life span
Brain and Cognition
|July 1, 1986
Summary
This study found a leftward bias in processing chimeric faces across all ages. Younger children (kindergarteners) showed less bias, potentially due to data variability, and differed in a circle-drawing task assessing brain communication.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Developmental Psychology
Background:
- Facial processing exhibits perceptual asymmetries.
- Understanding these asymmetries across the lifespan is crucial for cognitive development research.
Purpose of the Study:
- Investigate perceptual asymmetries in chimeric face processing across various age groups.
- Examine interhemispheric communication using a circle-drawing task.
Main Methods:
- Participants (5 years to elderly) viewed chimeric faces and identified the happier expression.
- Assessed interhemispheric communication by observing circle-drawing direction with each hand.
Main Results:
- A consistent leftward bias was observed in chimeric face perception across all age groups.
- Kindergarteners displayed lower asymmetry scores and atypical circle-drawing patterns compared to older groups.
Conclusions:
- Leftward bias in face perception is a robust finding across development.
- Kindergarteners may exhibit unique patterns in face processing and interhemispheric communication.