Erratum to: J Autism Dev Disord DOI 10.1007/s10803-017-3250-x

In the original version of the article, the co-author Lucia Billeci is wrongly affiliated with IRCCS Stella Maris Foundation, Pisa, Italy.

The correct affiliation of the author is given below:

National Research Council of Italy, Institute of Clinical Physiology, IFC-CNR, Via Moruzzi 1, 56124 Pisa, Italy.