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Your hand or mine? The extrastriate body area
1Department of Psychology, University of Surrey, Guildford, Surrey, GU2 7XH, UK.
Neuroimage
|July 1, 2008
Summary
The extrastriate body area (EBA) distinguishes between self and others body parts. This brain region sorts visual body information for sensory processing and social cognition.
Area of Science:
- Neuroscience
- Cognitive Neuroscience
- Social Neuroscience
Background:
- Visual processing of body parts is crucial for both self-awareness and social cognition.
- The extrastriate body area (EBA) is known to respond to body part images but its role in distinguishing self from others is unclear.
Purpose of the Study:
- To investigate whether the extrastriate body area (EBA) differentiates between visual representations of one's own body parts and those of others.
- To explore the functional role of the EBA in sorting body part information for distinct cognitive processes.
Main Methods:
- Functional magnetic resonance imaging (fMRI) adaptation technique was employed.
- Participants viewed visual images of their own and others' body parts.
Main Results:
- Evidence suggests that the right EBA contains distinct neural sub-populations.
- These sub-populations show selective sensitivity to images of one's own body parts versus others' body parts.
- This indicates a sorting mechanism within the EBA based on body part identity.
Conclusions:
- The right EBA likely plays a key role in sorting visual body part information by identity, facilitating self-recognition.
- The EBA may interact with sensory processing areas for self-related information and social cognition areas for others-related information.
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