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Neural signatures for sustaining object representations attributed to others in preverbal human infants
Title / Series / Name
Proceedings of the Royal Society B: Biological Sciences
Publication Volume
282
Publication Issue
1819
Pages
Editors
Keywords
Infant cognitive development
Metarepresentation
Object representation
Social cognition
Theory of mind
General Immunology and Microbiology
General Biochemistry,Genetics and Molecular Biology
General Environmental Science
General Agricultural and Biological Sciences
Metarepresentation
Object representation
Social cognition
Theory of mind
General Immunology and Microbiology
General Biochemistry,Genetics and Molecular Biology
General Environmental Science
General Agricultural and Biological Sciences
URI
https://hdl.handle.net/20.500.14018/28613
Abstract
A major feat of social beings is to encode what their conspecifics see, know or believe. While various non-human animals show precursors of these abilities, humans perform uniquely sophisticated inferences about other people's mental states. However, it is still unclear how these possibly human-specific capacities develop and whether preverbal infants, similarly to adults, form representations of other agents' mental states, specifically metarepresentations. We explored the neurocognitive bases of eight-month-olds' ability to encode the world from another person's perspective, using gamma-band electroencephalographic activity over the temporal lobes, an established neural signature for sustained object representation after occlusion. We observed such gamma-band activity when an object was occluded from the infants' perspective, as well as when it was occluded only from the other person (study 1), and also when subsequently the object disappeared, but the person falsely believed the object to be present (study 2). These findings suggest that the cognitive systems involved in representing the world from infants' own perspective are also recruited for encoding others' beliefs. Such results point to an early-developing, powerful apparatus suitable to deal with multiple concurrent representations, and suggest that infants can have a metarepresentational understanding of other minds even before the onset of language.
Topic
Publisher
Place of Publication
Type
Journal article
Date
2015-11-11
Language
ISBN
Identifiers
10.1098/rspb.2015.1683