title: Do parentese prosody and fathers' involvement in interacting facilitate social interaction in infants who later develop autism?
abstract: BACKGROUND
  Whether development of autism impacts the interactive process between an infant and his/her parents remains an unexplored issue.
  
  
  RESULTS
  Using computational analysis taking into account synchronic behaviors and emotional prosody (parentese), we assessed the course of infants' responses to parents' type of speech in home movies from typically developing (TD) infants and infants who will subsequently develop autism aged less than 18 months. Our findings indicate: that parentese was significantly associated with infant responses to parental vocalizations involving orientation towards other people and with infant receptive behaviours; that parents of infants developing autism displayed more intense solicitations that were rich in parentese; that fathers of infants developing autism spoke to their infants more than fathers of TD infants; and that fathers' vocalizations were significantly associated with intersubjective responses and active behaviours in infants who subsequently developed autism.
  
  
  CONCLUSIONS
  The parents of infants who will later develop autism change their interactive pattern of behaviour by both increasing parentese and father's involvement in interacting with infants; both are significantly associated with infant's social responses. We stress the possible therapeutic implications of these findings and its implication for Dean Falk's theory regarding pre-linguistic evolution in early hominins.
authors: Department of Child and Adolescent Psychiatry, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, Université Pierre et Marie Curie, Paris, France. david.cohen@psl.aphp.fr
authors: David
authors: D
authors: Cohen
authors: Raquel S
authors: RS
authors: Cassel
authors: Catherine
authors: C
authors: Saint-Georges
authors: Ammar
authors: A
authors: Mahdhaoui
authors: Marie-Christine
authors: MC
authors: Laznik
authors: Fabio
authors: F
authors: Apicella
authors: Pietro
authors: P
authors: Muratori
authors: Sandra
authors: S
authors: Maestro
authors: Filippo
authors: F
authors: Muratori
authors: Mohamed
authors: M
authors: Chetouani
mesh_terms: D001321:Autistic Disorder / Q000523:psychology*; D002657:Child Development; D005219:Father-Child Relations; D005260:Female; D006801:Humans; D007223:Infant; D007398:Interpersonal Relations; D008297:Male; D008954:Models, Biological; D009034:Mother-Child Relations; D010290:Parents; D013061:Speech Acoustics; D014741:Video Recording
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