Abstract
Animal-assisted therapy (AAT) has been suggested to increase prosocial behavior in children diagnosed with Autism Spectrum Disorder (ASD). Out of all the animals used in AAT, dogs have been found to be the most utilized and accessible. This systematic review examines the current state of literature on canine-assisted therapy (CAT) for children with ASD based on peer-reviewed articles. Five studies met inclusion and exclusion criteria. All articles found that presence of a therapy dog was correlated with increased frequency and duration of social behavior both throughout treatment and, in the case of one study, at follow-up. However, methodological limitations such as small sample sizes and sub-optimal analytic procedures suggest that existing studies might not accurately reflect the true nature of the relationship between CAT and social behavior. Therefore, further exploration of this area of research using methodologically strong studies is warranted and necessary. Recommendations for future research are included.
This is a preview of subscription content, access via your institution.

References
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Washington, DC: Author.
Baio, J., Wiggins, L., Christensen, D. L., Maenner, M. J., Daniels, J., Warren, Z., et al. (2018). Prevalence of autism spectrum disorder among children aged 8 years. Morbidity and Mortality Weekly Report, 67(6), 1–23. https://doi.org/10.15585/mmwr.ss6706a1.
Barker, S. B., & Dawson, K. S. (1998). The effects of animal-assisted therapy on anxiety ratings of hospitalized psychiatric patients. Psychiatric Services, 49(6), 797–801.
Becker, J. L., Rogers, E. C., & Burrows, B. (2017). Animal-assisted social skills training for children with autism spectrum disorders. Anthrozoös, 30(2), 307–326. https://doi.org/10.1080/08927936.2017.1311055.
Breitenbach, E., Stumpf, E., Fersen, L. V., & Ebert, H. (2009). Dolphin-assisted therapy: changes in interaction and communication between children with severe disabilities and their caregivers. Anthrozoos, 22(3), 277–289. https://doi.org/10.2752/175303709X457612.
Barker, S. B., Pandurangi, A. K., & Best, A. M. (2003). Effects of animal-assisted therapy on patients' anxiety, fear, and depression before ECT. The Journal of ECT, 19(1), 38-44.
Christon, L. M., Mackintosh, V. H., & Myers, B. J. (2010). Use of complementary and alternative medicine (CAM) treatments by parents of children with autism spectrum disorders. Research in Autism Spectrum Disorders, 4(2), 249–259. https://doi.org/10.1016/j.rasd.2009.09.013.
Constantino, J. (2012). Social Responsiveness Scale (SRS-2). Western Psychological Services. https://doi.org/10.1007/978-1-4419-1698-3_296.
Folse, E. B., Minder, C. C., Aycock, M. J., & Santana, R. T. (1994). Animal-assisted therapy and depression in adult college students. Anthrozoos: A Multidisciplinary Journal of The Interactions of People & Animals, 7(3), 188–194. https://doi.org/10.2752/089279394787001880.
Fung, S. C., & Leung, A. S. M. (2014). Pilot study investigating the role of therapy dogs in facilitating social interaction among children with autism. Journal of Contemporary Psychotherapy, 44(4), 253–262. https://doi.org/10.1007/s10879-014-9274-z.
Gabriels, R. L., Agnew, J. A., Holt, K. D., Shoffner, A., Zhaoxing, P., Ruzzano, S., … Mesibov, G. (2012). Pilot study measuring the effects of therapeutic horseback riding on school-age children and adolescents with autism spectrum disorders. Research in Autism Spectrum Disorders, 6(2), 578–588. https://doi.org/10.1016/j.rasd.2011.09.007.
Grigore, A. A., & Rusu, A. S. (2014). Interaction with a therapy dog enhances the effects of social story method in autistic children. Society & Animals, 22(3), 241–261. https://doi.org/10.1163/15685306-12341326.
Gabriels, R. L., Pan, Z., Dechant, B., Agnew, J. A., Brim, N., & Mesibov, G. (2015) Randomized controlled trial of therapeutic horseback riding in children and adolescents with Autism Spectrum Disorder. Journal of the American Academy of Child & Adolescent Psychiatry, 54(7), 541-549. https://doi.org/10.1016/j.jaac.2015.04.007.
Gray, C. (2010). The new social story book. Arlington, TX: Future Horizons.
Hansen, K. M., Messinger, C. J., Baun, M. M., & Megel, M. (1999). Companion animals alleviating distress in children. Anthrozoos, 12(3), 142–148. https://doi.org/10.2752/089279399787000264.
Humphries, T. L. (2003). Effectiveness of dolphin-assisted therapy as a behavioral intervention for young children with disabilities. Bridges, 1(6).
Hallgren, K. A. (2012). Computing inter-rater reliability for observational data: An overview and tutorial. Tutorials in Quantitative Methods for Psychology, 8(1), 23-34.
IBM Corp. Released 2017. IBM SPSS Statistics for Windows, Version 25.0. Armonk, NY: IBM Corp.
Jarde, A., Losilla, J., Vives, J., & Rodrigo, M. F. (2013). Q-Coh: A tool to screen the methodological quality of cohort studies in systematic reviews and meta-analyses. International Journal of Clinical and Health Psychology, 13(2), 138-146
Kaminski, M., Pellino, T., & Wish, J. (2002). Play and pets: the physical and emotional impact of child-life and pet therapy on hospitalized children. Children’s Health Care, 31(4), 321–335. https://doi.org/10.1207/S15326888CHC3104_5.
Kern, J. K., Fletcher, C. L., Garver, C. R., Mehta, J. A., Grannemann, B. D., Knox, K. R., … Trivedi, M. H. (2011). Prospective trial of equine-assisted activities in autism spectrum disorder. Alternative Therapies in Health and Medicine, 17(3), 14–20.
Kozlowski, A. M., Matson, J. L., Horovitz, M., Worley, J. A., & Neal, D. (2011). Parents’ first concerns of their child’s development in toddlers with autism spectrum disorders. Developmental Neurorehabilitation, 14(2), 72–78. https://doi.org/10.3109/17518423.2010.539193.
Marino, L., & Lilienfeld, S. O. (2007). Dolphin-assisted therapy: more flawed data and more flawed conclusions. Anthrozoos, 20(3), 239–249. https://doi.org/10.2752/089279307X224782.
Martin, F., & Farnum, J. (2002). Animal-assisted therapy for children with pervasive developmental disorders. Western Journal of Nursing Research, 24(6), 657–670. https://doi.org/10.1177/019394502236639.
Moher, D., Shamseer, L., Clarke, M., Ghersi, D., Liberati, A., Petticrew, M., … Stewart, L. A. (2015). Preferred reporting items for systematic review and meta-analysis protocols (PRISMA-P) 2015 statement. Systematic Reviews, 4(1), 1. https://doi.org/10.1186/2046-4053-4-1.
Nagengast, S. L., Baun, M. M., Megel, M., & Michael Leibowitz, J. (1997). The effects of the presence of a companion animal on physiological arousal and behavioral distress in children during a physical examination. Journal of Pediatric Nursing, 12(6), 323–330. https://doi.org/10.1016/S0882-5963(97)80058-9.
Nathanson, D. E. (1998). Long-term effectiveness of dolphin-assisted therapy for children with severe disabilities. Anthrozoös, 11(1), 22–32. https://doi.org/10.1080/08927936.1998.11425084.
Nathanson, D. E., De Castro, D., Friend, H., & McMahon, M. (1997). Effectiveness of short-term dolphin-assisted therapy for children with severe disabilities. Anthrozoos, 10(2–3), 90–100. https://doi.org/10.2752/089279397787001166.
Nimer, J., & Lundahl, B. (2007). Animal-assisted therapy: a meta-analysis. Anthrozoos, 20(3), 225–238. https://doi.org/10.2752/089279307X224773.
O’Haire, M. E. (2013). Animal-assisted intervention for autism spectrum disorder: a systematic literature review. Journal of Autism and Developmental Disorders, 43(7), 1606–1622. https://doi.org/10.1007/s10803-012-1707-5.
Powers, D. M. (2012). The problem with kappa. Proceedings from EACL 12. In The 13th Conference of the European Chapter of the Association for Computational Linguistics. Avignon, France.
Prevalence of autism spectrum disorders--Autism and Developmental Disabilities Monitoring Network, 14 sites, United States, 2008. (2012). Morbidity and mortality weekly report. Surveillance summaries (Vol. 61). Washington, D.C.
Redefer, L. A., & Goodman, J. F. (1989). Brief report: Pet-facilitated therapy with autistic children. Journal of Autism and Developmental Disorders, 19(3), 461–467. https://doi.org/10.1007/BF02212943.
Russell, E., & Sofronoff, K. (2005). Anxiety and social worries in children with Asperger Syndrome. Australian & New Zealand Journal of Psychiatry, 39(7), 633–638. https://doi.org/10.1080/j.1440-1614.2005.01637.x.
Simonoff, E., Pickles, A., Charman, T., Chandler, S., Loucas, T., & Baird, G. (2008). Psychiatric disorders in children with autism spectrum disorders: prevalence, comorbidity, and associated factors in a population-derived sample. Journal of the American Academy of Child & Adolescent Psychiatry, 47(8), 921–929. https://doi.org/10.1097/CHI.0b013e318179964f.
Tsai, C., Friedmann, E., & Thomas, S. A. (2010). The effect of animal-assisted therapy on stress responses in hospitalized children. Anthrozoos, 23(3), 245–258. https://doi.org/10.2752/175303710X12750451258977.
White, S. W., Oswald, D., Ollendick, T., & Scahill, L. (2009). Anxiety in children and adolescents with autism spectrum disorders. Clinical Psychology Review. https://doi.org/10.1016/j.cpr.2009.01.003.
White, S. W., Keonig, K., & Scahill, L. (2007) Social skills development in children with Autism Spectrum Disorders: A review of the intervention research. Journal of Autism and Developmental Disorders, 37(10), 1858-1868. https://doi.org/10.1007/s10803-006-0320-x.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of Interest
The authors declare that they have no conflict of interest.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Hardy, K.K., Weston, R.N. Canine-Assisted Therapy for Children with Autism Spectrum Disorder: a Systematic Review. Rev J Autism Dev Disord 7, 197–204 (2020). https://doi.org/10.1007/s40489-019-00188-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40489-019-00188-5