Judy Duquette of Smithfield, Rhode Island, clearly remembers when in 1993 her then 18-month-old son began changing.
“Until then, it looked like things were going well for Eric,” said 48-year-old Duquette in a telephone interview. “He'd been saying about 12 different words and suddenly around 18 months those words were gone. He began having poor eye contact, wouldn't point to things or engage us, and had poor coordination. He lined things up. He would pile his toys into a mountain in his room and had little interest in playing with them.”