title: Using extinction to promote response variability in toy play.
abstract: We report the effects of extinction and positive reinforcement on the number of untrained topographies emitted by children with toys. Baseline showed no appropriate toy play. Participants were then trained individually on one topography for each toy. Previously reinforced topographies of toy play were placed on extinction, resulting in the induction of untrained topographies.
authors.affiliation: University of Pennsylvania.
authors.forename: J S
authors.initials: JS
authors.lastname: Lalli
authors.forename: K
authors.initials: K
authors.lastname: Zanolli
authors.forename: T
authors.initials: T
authors.lastname: Wohn