New research at the University of Washington has provided more insight into this phenomenon. According to an article in Newswise:
The new research shows that brain activation in adults with autism remains elevated long after similar brain regions of typically developed adults have stopped being activated when exposed to a series of pictures of human faces. A decrease in activation over time to the same type of information is called neural habituation and is connected with learning, according to Natalia Kleinhans, lead author of the new study and a UW research assistant professor of radiology.
“What we are seeing is hyperexcitability or overarousal of the amygdala, which suggests that neurons in the amygdala are firing more than expected,” said Kleinhans, who is associated with the UW Autism Center.
For more on autism and the brain:
- Autism and the Brain
- Researchers Discover Differences in Autistic Brain Activity
- Pittsburgh Researchers Continue Research into Autistic Brain