Abstract
Infant siblings of children with an autism spectrum disorder (ASD) diagnosis (i.e., infants at risk of ASD) are excellent candidates for early interventions based on the principles of applied behavior analysis. This study replicates and extends behavioral research using contingent social reinforcement procedures (i.e., vocal imitation and motherese speech) to increase both vocalizations and echoics among 3 infants at risk of ASD with their mothers in the natural environment. Results confirmed earlier findings that contingent reinforcement, specifically vocal imitation, reliably produces high rates of vocalizations, echoic approximations, and emerging pure echoic repertoires in at risk infants.
Similar content being viewed by others
References
Garrido, D., Watson, L., Carballo, G., Garcia-Retamero, R., & Crais, E. (2017). Infants at risk for autism spectrum disorder: Patterns of vocalizations at 14 months. Autism Research, 10(8), 1372–1383.
Gazdag, G., & Warren, S. (2000). Effects of adult contingent imitation on development of young children’s vocal imitation. Journal of Early Intervention, 23(1), 24–35. https://doi.org/10.1177/10538151000230010701.
Masur, E., & Olson, J. (2008). Mothers’ and infants’ responses to their partners’ spontaneous action and vocal/verbal imitation. Infant Behavior and Development, 31(4), 704–715.
Neimy, H., Pelaez, M., Carrow, J., Monlux, K., & Tarbox, J. (2017). Infants at risk of autism and developmental disorders: Establishing early social skills. Behavior Development Bulletin, 22(1), 6–22. https://doi.org/10.1037/bdb0000046.
Novak, G. & Pelaez (2004). Child and adolescent development: A behavior systems approach. Sage Publications.
Ozonoff, S., Iosif, A. M., Baguio, F., Cook, I., Hill, M., Hutman, T., & Young, G. (2010). A prospective study of the emergence of early behavioral signs of autism. Journal of the American Academy of Children & Adolescent Psychiatry, 49, 256–266.
Pelaez, M., Borroto, A., & Carrow, J. (2018). Infant vocalizations and imitation as a result of adult contingent imitation. Behavior Development, 23, 81–88. https://doi.org/10.1037/bdb0000074.
Pelaez, M., Virues-Ortega, J., & Gewirtz, J. L. (2011a). Reinforcement of vocalizations through contingent vocal imitation. Journal of Applied Behavior Analysis, 44, 33–40. https://doi.org/10.1901/jaba.2011.44-33.
Pelaez, M., Virues-Ortega, J., & Gewirtz, J. L. (2011b). Contingent and noncontingent reinforcement with maternal vocal imitation and motherese speech: Effects on infant vocalizations. European Journal of Behaviour Analysis, 12, 277–287. https://doi.org/10.1080/15021149.2011.11434370.
Poulson, C., Kymissis, E., Reeve, K., Andreatos, M., & Reeve, L. (1991). Generalized vocal imitation in infants. Journal of Experimental Child Psychology, 51, 267–279. https://doi.org/10.1016/0022-0965(91)90036-R.
Funding
The present study was not funded by any relevant grants or other funding sources.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflicts of Interest
The authors declare that no relevant conflicts of interest influenced the nature of the present research investigation.
Ethical Approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Further, measures were taken to minimize any risks, harms, and/or discomforts. Risks, harms, and/or discomforts were minimized in various ways. First, additional session attendance was not requested of the participant in the event of a cancellation. Second, direct parent training sessions were terminated contingent on the child becoming visibly distraught or agitated (e.g., crying) for no more than 30 s maximum, based on the parent’s reported level of comfort at the onset of treatment. Last, if the parent requested to end or withdraw for any reason, the parent training sessions would have been terminated immediately.
Informed Consent
Informed consent was obtained from the parents of the infants who participated in the study. Specifically, if the parent’s child met the characteristics for participation in the study, and the parent provided consent-to-participation forms for both him- or herself and his or her child (via parental and child consent forms), the child would then begin the assessment procedures. The primary investigator was available and willing to answer any questions that the parent may have had regarding the study and his or her child’s participation throughout every session. Further, the consent form stressed that the parent may withdraw his or her child’s participation at any time and that all participation is purely voluntary in nature.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Research Highlights
• Extends previously researched evidence-based approaches for establishing early communication skills in typically developing infants and children diagnosed with autism spectrum disorder (ASD) to infants at risk of ASD.
• Demonstrates the efficacy of arranging and delivering contingent reinforcement in the form of motherese speech and vocal imitation to promote increased vocalizations and echoic repertoires in infants at risk of ASD.
• Delineates a brief methodology for quickly and easily implementing behavior-analytic treatment with parent-infant dyads in the context of the natural environment.
• May help improve social interactions between parents and their infants at risk of ASD by encouraging and facilitating the development of important early social behavioral cusps.
Electronic Supplementary Material
ESM 1
(XLSX 56.2 kb)
Rights and permissions
About this article
Cite this article
Neimy, H., Pelaez, M., Monlux, K. et al. Increasing Vocalizations and Echoics in Infants at Risk of Autism Spectrum Disorder. Behav Analysis Practice 13, 467–472 (2020). https://doi.org/10.1007/s40617-020-00413-2
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40617-020-00413-2