title: New paradigms and new issues: a comment on emerging themes in the study of motor development.
authors.affiliation: Department of Psychology, University of Virginia, Charlottesville 22903-2477, USA.
authors.forename: B I
authors.initials: BI
authors.lastname: Bertenthal
authors.forename: S M
authors.initials: SM
authors.lastname: Boker
mesh_terms: D000367:Age Factors; D002657:Child Development; D002675:Child, Preschool; D003071:Cognition; D005260:Female; D006801:Humans; D007804:Language Development; D008297:Male; D012660:Semantics; D014825:Vocabulary