Using a Lag Reinforcement Schedule to Increase Phonemic Variability in Children With Autism Spectrum Disorders

Shaping functional vocal language is difficult when an individual has not yet acquired an echoic repertoire and does not emit sufficient phonemes (i.e., speech sounds) for shaping. Few studies have evaluated interventions to increase the frequency and breadth of phonemes. The current study extended...

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Bibliographic Details
Published in:The analysis of verbal behavior 2013-01, Vol.29 (1), p.71-83
Main Authors: Koehler-Platten, Kate, Grow, Laura L., Schulze, Kimberly A., Bertone, Tara
Format: Article
Language:English
Subjects:
Autism
Behavioral Science and Psychology
Imitation
Instructional Effectiveness
Intervention
Naturalistic Observation
Novelty (Stimulus Dimension)
Observation
Oral Language
Pervasive Developmental Disorders
Phonemes
Phonemic Awareness
Pretests Posttests
Psychology
Reinforcement
Research Article
Responses
Scoring
Teaching Methods
Time
Training
Verbal Communication
Video Technology
Young Children
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Summary:Shaping functional vocal language is difficult when an individual has not yet acquired an echoic repertoire and does not emit sufficient phonemes (i.e., speech sounds) for shaping. Few studies have evaluated interventions to increase the frequency and breadth of phonemes. The current study extended Esch, Esch, and Love (2009) by evaluating the effects of a Lag 1 reinforcement schedule on vocal variability and limiting the definition of variability to responses that incorporated a novel phoneme. For 2 of the 3 participants, the cumulative number of novel phonemes, the percentage of trials with variability, and the number of different phonemes emitted per session increased during the Lag 1 intervention phase.
ISSN:0889-9401
2196-8926
DOI:10.1007/BF03393125