Xiang Lab

  • Neuromagnetic Signatures of Autism

    The purpose of this project is to evaluate pre-attentive auditory information processing of patients with autism and Asperger syndrome (AS) using magnetoencephalography (MEG). Children with these specific categories of pervasive developmental disorders (PDD) have the same core deficits in social reciprocity and social use of language, but children with AS generally have better functional use of language.

 
  • Magnetic source imaging (MSI) showing the neuromagnetic distribution of endogenous activities in a child with ASD and a typically developing child.

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    Magnetic source imaging (MSI) showing the neuromagnetic distribution of endogenous activities in a child with ASD and a typically developing child.

    Magnetic source imaging (MSI) showing the neuromagnetic distribution of endogenous activities in a child with ASD and a typically developing child.  Magnetic sources (red) from both demonstrated that the detected signals originated from within the brain. In the child with ASD, there was dominant activation in the temporal and frontal cortices. The typically developing child, however, showed evenly distributed neuromagnetic signals.