With autism, the phase of echolalia lasts far longer than 30 months and is often a symptom of autism that persists for the sufferer's life. (thetoddle.com)
The differences in the arcuate bundle, which connects areas of the brain involved in understanding words and regions related to speech production, were particularly severe in those who had a significant history of «delayed echolalia». (sciencedaily.com)
It is estimated that 85 percent of autism sufferers exhibit echolalia. (thetoddle.com)