[1] Temple Univ, Dept Psychol, Philadelphia, PA 19122 USA
[2] Childrens Hosp Philadelphia, Ctr Autism Res, Philadelphia, PA 19104 USA
[3] Univ Minnesota, Dept Educ Psychol, Minneapolis, MN 55455 USA
[4] Univ Minnesota, Inst Child Dev, 51 E River Rd, Minneapolis, MN 55455 USA
[5] Univ Minnesota, Dept Pediat, Minneapolis, MN 55455 USA
[6] Univ Calif Davis, MIND Inst, Sacramento, CA USA
[7] Univ Alberta, Dept Pediat, Edmonton, AB, Canada
[8] Univ Washington, Dept Speech & Hearing Sci, Seattle, WA 98195 USA
[9] Washington Univ, Sch Med, Dept Psychiat, St Louis, MO 63110 USA
[10] Univ Washington, Dept Radiol, Seattle, WA 98195 USA
[11] Univ N Carolina, Carolina Inst Dev Disabil, Chapel Hill, NC 27515 USA
[12] Univ N Carolina, Dept Psychiat, Chapel Hill, NC 27515 USA
[13] Univ Penn, Perelman Sch Med, Philadelphia, PA 19104 USA
[14] Univ N Carolina, Chapel Hill, NC 27515 USA
[15] Univ Washington, Seattle, WA 98195 USA
[16] Washington Univ, St Louis, MO 63110 USA
[17] Childrens Hosp Philadelphia, Philadelphia, PA 19104 USA
[18] Univ Alberta, Edmonton, AB, Canada
[19] Univ Minnesota, Minneapolis, MN 55455 USA
[20] Montreal Neurol Inst, Data Coordinating Ctr, Montreal, PQ, Canada
[21] NYU, Image Proc Core, New York, NY 10003 USA
[22] Univ N Carolina, Stat Anal Core, Chapel Hill, NC 27515 USA