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Mirror self-recognition beyond the face
Mark Nielsen1, Thomas Suddendorf, Virginia Slaughter
1University of Queensland, Australia. nielsen@psy.uq.edu.au
Child Development
|February 8, 2006
Summary
Toddlers aged 18-24 months can pass the mark test of self-recognition by touching stickers on their bodies, not just their faces. This indicates self-recognition is not limited to facial features in young children.
Area of Science:
- Developmental Psychology
- Cognitive Development
- Child Psychology
Background:
- The mark test is a key measure for assessing self-recognition in infants and toddlers.
- Previous research has primarily focused on facial self-recognition, leaving understanding of body self-recognition less developed.
Purpose of the Study:
- To investigate whether toddlers aged 18 and 24 months can pass the mark test of self-recognition when marks are placed on their bodies.
- To explore the role of visual expectations in toddlers' performance on the mark test.
Main Methods:
- Three studies involved 144 toddlers aged 18 and 24 months.
- Toddlers were surreptitiously marked with stickers on their faces and legs, with visibility contingent on mirror reflection.
- Study 2 involved disguised leg marks, while Study 3 included pre-exposure to disguised body parts.
Main Results:
- Toddlers did not show differential rates of touching stickers on legs versus faces in Study 1.
- Toddlers failed to touch disguised stickers on their legs in Study 2.
- Equivalent sticker touching on legs and faces occurred after brief exposure to disguised body parts in Study 3.
Conclusions:
- Toddlers' ability to pass the mark test is based on their visual expectations of their own appearance.
- Self-recognition in toddlers extends beyond facial features to encompass body parts.
- These findings challenge the notion that self-recognition is solely face-centric in early development.
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