title: Gross motor development, movement abnormalities, and early identification of autism.
abstract: Gross motor development (supine, prone, rolling, sitting, crawling, walking) and movement abnormalities were examined in the home videos of infants later diagnosed with autism (regression and no regression subgroups), developmental delays (DD), or typical development. Group differences in maturity were found for walking, prone, and supine, with the DD and Autism-No Regression groups both showing later developing motor maturity than typical children. The only statistically significant differences in movement abnormalities were in the DD group; the two autism groups did not differ from the typical group in rates of movement abnormalities or lack of protective responses. These findings do not replicate previous investigations suggesting that early motor abnormalities seen on home video can assist in early identification of autism.
authors.affiliation: Department of Psychiatry, University of California-Davis Health System, M.I.N.D. Institute, 2825 50th Street, Sacramento, CA 95817, USA. sjozonoff@ucdavis.edu
authors.forename: Sally
authors.initials: S
authors.lastname: Ozonoff
authors.forename: Gregory S
authors.initials: GS
authors.lastname: Young
authors.forename: Stacy
authors.initials: S
authors.lastname: Goldring
authors.forename: Laura
authors.initials: L
authors.lastname: Greiss-Hess
authors.forename: Adriana M
authors.initials: AM
authors.lastname: Herrera
authors.forename: Joel
authors.initials: J
authors.lastname: Steele
authors.forename: Suzanne
authors.initials: S
authors.lastname: Macari
authors.forename: Susan
authors.initials: S
authors.lastname: Hepburn
authors.forename: Sally J
authors.initials: SJ
authors.lastname: Rogers
mesh_terms: D001321:Autistic Disorder / Q000175:diagnosis* / Q000453:epidemiology*; D002648:Child; D002675:Child, Preschool; D042241:Early Diagnosis; D005260:Female; D006801:Humans; D008297:Male; D019957:Motor Skills Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D009069:Movement Disorders / Q000175:diagnosis* / Q000453:epidemiology*; D012720:Severity of Illness Index; D014743:Videotape Recording