[Source:  Medical News Today]

Inattention, hyperactivity, and impulsive behavior in children with ADHD can result in social problems and they tend to be excluded from peer activities. They have been found to have impaired recognition of emotional expression from other faces.

The research group of Professor Ryusuke Kakigi of the National Institute for Physiological Sciences, National Institutes of Natural Sciences, in collaboration with Professor Masami K. Yamaguchi and Assistant Professor Hiroko Ichikawa of Chuo University first identified the characteristics of facial expression recognition of children with ADHD by measuring hemodynamic response in the brain and showed the possibility that the neural basis for the recognition of facial expression is different from that of typically developing children.

The findings are discussed in Neuropsychologia, available online.

The research group showed images of a happy expression or an angry expression to 13 children with ADHD and 13 typically developing children and identified the location of the brain activated at that time.

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