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Social origins of self-regulated attention during infancy and their disruption in autism spectrum disorder: Implications for early intervention

Published online by Cambridge University Press:  22 July 2020

Michael S. Gaffrey*
Affiliation:
Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
Sarah Markert
Affiliation:
Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
Chen Yu
Affiliation:
Department of Psychology, The University of Texas at Austin, Austin, TX, USA
*
Author for correspondence: Michael S. Gaffrey, Ph.D., Duke Early Experience and the Developing Brain Lab, Department of Psychology and Neuroscience, Campus Box: 90086, Duke University, Durham, NC E-mail: michael.gaffrey@duke.edu.

Abstract

To understand the complex relationships between autism spectrum disorder (ASD) and other frequently comorbid conditions, a growing number of studies have investigated the emergence of ASD during infancy. This research has suggested that symptoms of ASD and highly related comorbid conditions emerge from complex interactions between neurodevelopmental vulnerabilities and early environments, indicating that developing treatments to prevent ASD is highly challenging. However, it also suggests that attenuating the negative effects of ASD on future development once identified is possible. The present paper builds on this by conceptualizing developmental delays in nonsocial skills as the potential product of altered caregiver–infant interactions following the emergence of ASD during infancy. And, following emerging findings from caregiver–infant dyadic head-mounted eye-tracking (D-ET) research, it also suggests that a multiple pathway model of joint attention can provide mechanistic insights into how ASD alters the ability of caregiver and infant to create a context for infant learning. The potential for this view to inform early intervention is further discussed and illustrated through D-ET data collected prior to and following a brief, parent-mediated intervention for infant ASD. While promising, further research informing how a multiple pathway model of joint attention can inform ASD early intervention is needed.

Type
Special Section Articles
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

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References

Adamson, L. B., Bakeman, R., & Deckner, D. F. (2004). The development of symbol-infused joint engagement. Child Development, 75, 11711187. doi:10.1111/j.1467-8624.2004.00732.xCrossRefGoogle ScholarPubMed
Ainsworth, M. D. (1979). Infant–mother attachment. The American Psychologist, 34, 932937. doi:10.1037//0003-066x.34.10.932CrossRefGoogle ScholarPubMed
American Psychiatric Association. (2013). Diagnostic and statistical manual of mental disorders (5th ed.). Arlingtokn, VA: Author.Google Scholar
Baldwin, D. A. (1995). Understanding the link between joint attention and language. In Moore, C. & Dunham, P. J. (Eds.), Joint attention: Its origins and role in development (pp. 131158). New Jersey: Lawrence Erlbaum Associates, Inc.Google Scholar
Blair, C., Granger, D., Willoughby, M., & Kivlighan, K. (2006). Maternal sensitivity is related to hypothalamic-pituitary-adrenal axis stress reactivity and regulation in response to emotion challenge in 6-month-old infants. Annals of the New York Academy of Sciences, 1094, 263267. doi:10.1196/annals.1376.031CrossRefGoogle ScholarPubMed
Bradshaw, J., Klin, A., Evans, L., Klaiman, C., Saulnier, C., & McCracken, C. (2020). Development of attention from birth to 5 months in infants at risk for autism spectrum disorder. Development and Psychopathology, 32(2), 491501. doi:10.1017/S0954579419000233.CrossRefGoogle ScholarPubMed
Brian, J. A., Bryson, S. E., & Zwaigenbaum, L. (2015). Autism spectrum disorder in infancy: Developmental considerations in treatment targets. Current Opinion in Neurology, 28, 117123. doi:10.1097/WCO.0000000000000182CrossRefGoogle ScholarPubMed
Campbell, S. B., Leezenbaum, N. B., Mahoney, A. S., Day, T. N., & Schmidt, E. N. (2015). Social engagement with parents in 11-month-old siblings at high and low genetic risk for autism spectrum disorder. Autism, 19, 915924. doi:10.1177/1362361314555146CrossRefGoogle ScholarPubMed
Carpenter, M., Nagell, K., & Tomasello, M. (1998). Social cognition, joint attention, and communicative competence from 9 to 15 months of age. Monographs of the Society for Research in Child Development, 63, ivi., 1–143. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/9835078.CrossRefGoogle ScholarPubMed
Chawarska, K., Macari, S., & Shic, F. (2013). Decreased spontaneous attention to social scenes in 6-month-old infants later diagnosed with autism spectrum disorders. Biological Psychiatry, 74, 195203. doi:10.1016/j.biopsych.2012.11.022CrossRefGoogle ScholarPubMed
Chawarska, K., Shic, F., Macari, S., Campbell, D. J., Brian, J., Landa, R., … Bryson, S. (2014). 18-month predictors of later outcomes in younger siblings of children with autism spectrum disorder: A baby siblings research consortium study. Journal of the American Academy of Child and Adolescent Psychiatry, 53, 13171327. e1311. doi:10.1016/j.jaac.2014.09.015.CrossRefGoogle ScholarPubMed
Chevallier, C., Kohls, G., Troiani, V., Brodkin, E. S., & Schultz, R. T. (2012). The social motivation theory of autism. Trends in Cognitive Sciences, 16, 231239. doi:10.1016/j.tics.2012.02.007CrossRefGoogle ScholarPubMed
Choi, B., Shah, P., Rowe, M. L., Nelson, C. A., & Tager-Flusberg, H. (2019). Gesture development, caregiver responsiveness, and language and diagnostic outcomes in infants at high and low risk for autism. Journal of Autism and Developmental Disorders, doi:10.1007/s10803-019-03980-8Google Scholar
Clerkin, E. M., Hart, E., Rehg, J. M., Yu, C., & Smith, L. B. (2017). Real-world visual statistics and infants’ first-learned object names. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 372, 1711. doi:10.1098/rstb.2016.0055CrossRefGoogle ScholarPubMed
Colombo, J., & Cheatham, C. L. (2006). The emergence and basis of endogenous attention in infancy and early childhood. Advances in Child Development and Behavior, 34, 283322. doi:10.1016/s0065-2407(06)80010-8CrossRefGoogle ScholarPubMed
Corbetta, M., Patel, G., & Shulman, G. L. (2008). The reorienting system of the human brain: From environment to theory of mind. Neuron, 58, 306324. doi:10.1016/j.neuron.2008.04.017CrossRefGoogle ScholarPubMed
Corkum, V., & Moore, C. (1998). The origins of joint visual attention in infants. Developmental Psychology, 34, 2838. doi:10.1037/0012-1649.34.1.28CrossRefGoogle ScholarPubMed
Courchesne, E., Pramparo, T., Gazestani, V. H., Lombardo, M. V., Pierce, K., & Lewis, N. E. (2019). The ASD Living Biology: From cell proliferation to clinical phenotype. Molecular Psychiatry, 24, 88107. doi:10.1038/s41380-018-0056-yCrossRefGoogle ScholarPubMed
Deak, G. O., Krasno, A. M., Triesch, J., Lewis, J., & Sepeta, L. (2014). Watch the hands: Infants can learn to follow gaze by seeing adults manipulate objects. Developmental Science, 17, 270281. doi:10.1111/desc.12122CrossRefGoogle ScholarPubMed
Edmunds, S. R., Kover, S. T., & Stone, W. L. (2019). The relation between parent verbal responsiveness and child communication in young children with or at risk for autism spectrum disorder: A systematic review and meta-analysis. Autism Research, 12, 715731. doi:10.1002/aur.2100CrossRefGoogle ScholarPubMed
Elison, J. T., Paterson, S. J., Wolff, J. J., Reznick, J. S., Sasson, N. J., Gu, H., … IBIS Network. (2013). White matter microstructure and atypical visual orienting in 7-month-olds at risk for autism. The American Journal of Psychiatry, 170, 899908. doi:10.1176/appi.ajp.2012.12091150CrossRefGoogle ScholarPubMed
Elsabbagh, M., Fernandes, J., Webb, S. J., Dawson, G., Charman, T., Johnson, M. H., & British Autism Study of Infant Siblings Team. (2013). Disengagement of visual attention in infancy is associated with emerging autism in toddlerhood. Biological Psychiatry, 74, 189194. doi:10.1016/j.biopsych.2012.11.030.CrossRefGoogle ScholarPubMed
Flanagan, J. E., Landa, R., Bhat, A., & Bauman, M. (2012). Head lag in infants at risk for autism: A preliminary study. The American Journal of Occupational Therapy, 66, 577585. doi:10.5014/ajot.2012.004192CrossRefGoogle ScholarPubMed
Green, J., & Garg, S. (2018). Annual research review: The state of autism intervention science: progress, target psychological and biological mechanisms and future prospects. Journal of Child Psychology and Psychiatry, 59, 424443. doi:10.1111/jcpp.12892CrossRefGoogle ScholarPubMed
Gulsrud, A. C., Hellemann, G., Shire, S., & Kasari, C. (2016). Isolating active ingredients in a parent-mediated social communication intervention for toddlers with autism spectrum disorder. Journal of Child Psychology and Psychiatry, 57, 606613. doi:10.1111/jcpp.12481CrossRefGoogle Scholar
Jakubowski, K. P., & Iverson, J. M. (2019). Look at mommy: An exploratory study of attention-related communication in mothers of toddlers at risk for autism. Language Learning and Development, 15, 126137. doi:10.1080/15475441.2018.1544074CrossRefGoogle Scholar
Jayaraman, S., Fausey, C. M., & Smith, L. B. (2015). The faces in infant-perspective scenes change over the first year of life. PLoS One, 10, e0123780. doi:10.1371/journal.pone.0123780CrossRefGoogle ScholarPubMed
Kannass, K. N., & Oakes, L. N. (2008). The development of attention and its relations to language in infancy and toddlerhood. Journal of Cognition and Development, 9, 222246. doi:org/10.1080/15248370802022696.CrossRefGoogle Scholar
Keehn, B., Lincoln, A. J., Muller, R. A., & Townsend, J. (2010). Attentional networks in children and adolescents with autism spectrum disorder. Journal of Child Psychology and Psychiatry, 51, 12511259. doi:10.1111/j.1469-7610.2010.02257.xCrossRefGoogle ScholarPubMed
Kinard, J. L., Sideris, J., Watson, L. R., Baranek, G. T., Crais, E. R., Wakeford, L., & Turner-Brown, L. (2017). Predictors of parent responsiveness to 1-year-olds at-risk for autism spectrum disorder. Journal of Autism and Developmental Disorders, 47, 172186. doi:10.1007/s10803-016-2944-9CrossRefGoogle ScholarPubMed
Kolb, B., & Gibb, R. (2011). Brain plasticity and behaviour in the developing brain. Journal of the Canadian Academy of Child and Adolescent Psychiatry, 20, 265276. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/22114608.Google ScholarPubMed
Kretch, K. S., Franchak, J. M., & Adolph, K. E. (2014). Crawling and walking infants see the world differently. Child Development, 85, 15031518. doi:10.1111/cdev.12206CrossRefGoogle ScholarPubMed
Leezenbaum, N. B., Campbell, S. B., Butler, D., & Iverson, J. M. (2014). Maternal verbal responses to communication of infants at low and heightened risk of autism. Autism, 18, 694703. doi:10.1177/1362361313491327CrossRefGoogle ScholarPubMed
Masten, A. S., & Cicchetti, D. (2010). Developmental cascades. Development and Psychopathology, 22, 491495. doi:10.1017/S0954579410000222CrossRefGoogle ScholarPubMed
Miller, M., Iosif, A. M., Young, G. S., Hill, M. M., & Ozonoff, S. (2018). Early detection of ADHD: Insights from infant siblings of children with autism. Journal of Clinical Child and Adolescent Psychology, 47, 737744. doi:10.1080/15374416.2016.1220314CrossRefGoogle ScholarPubMed
Mills-Koonce, W. R., Willoughby, M. T., Zvara, B., Barnett, M., Gustafsson, H., Cox, M. J., & Family Life Project Key Investigators. (2015). Mothers’ and fathers’ sensitivity and children's cognitive development in low-income, rural families. Journal of Applied Developmental Psychology, 38, 110. doi:10.1016/j.appdev.2015.01.001.CrossRefGoogle ScholarPubMed
Morton, J, & Johnson, MH. (1991). CONSPEC and CONLERN: a two-process theory of infant face recognition. Psychol Rev, 98(2), 164181. doi:10.1037/0033-295x.98.2.164CrossRefGoogle ScholarPubMed
Mundy, P. (2018). A review of joint attention and social-cognitive brain systems in typical development and autism spectrum disorder. The European Journal of Neuroscience, 47, 497514. doi:10.1111/ejn.13720CrossRefGoogle ScholarPubMed
Mundy, P., Block, J., Delgado, C., Pomares, Y., Van Hecke, A. V., & Parlade, M. V. (2007). Individual differences and the development of joint attention in infancy. Child Development, 78, 938954. doi:10.1111/j.1467-8624.2007.01042.xCrossRefGoogle ScholarPubMed
NICHD Early Child Care Research Network. (2003). Do children's attention processes mediate the link between family predictors and school readiness? Developmental Psychology, 39, 581593. doi:10.1037/0012-1649.39.3.581.CrossRefGoogle Scholar
Northrup, J. B., & Iverson, J. M. (2015). Vocal coordination during early parent-infant interactions predicts language outcome in infant siblings of children with autism spectrum disorder. Infancy, 20, 523547. doi:10.1111/infa.12090CrossRefGoogle ScholarPubMed
Nystrom, P., Thorup, E., Bolte, S., & Falck-Ytter, T. (2019). Joint attention in infancy and the emergence of autism. Biological Psychiatry, 86, 631638. doi:10.1016/j.biopsych.2019.05.006CrossRefGoogle ScholarPubMed
Ozonoff, S., Young, G. S., Carter, A., Messinger, D., Yirmiya, N., Zwaigenbaum, L., … Stone, W. L. (2011). Recurrence risk for autism spectrum disorders: A baby siblings research consortium study. Pediatrics, 128, e488495. doi:10.1542/peds.2010-2825Google ScholarPubMed
Ozonoff, S., Young, G. S., Landa, R. J., Brian, J., Bryson, S., Charman, T., … Iosif, A. M. (2015). Diagnostic stability in young children at risk for autism spectrum disorder: A baby siblings research consortium study. Journal of Child Psychology and Psychiatry, 56, 988998. doi:10.1111/jcpp.12421CrossRefGoogle ScholarPubMed
Pickles, A., Harris, V., Green, J., Aldred, C., McConachie, H., Slonims, V., … PACT Consortium (2015). Treatment mechanism in the MRC preschool autism communication trial: Implications for study design and parent-focussed therapy for children. Journal of Child Psychology and Psychiatry, 56, 162170. doi:10.1111/jcpp.12291CrossRefGoogle ScholarPubMed
Pickles, A., Le Couteur, A., Leadbitter, K., Salomone, E., Cole-Fletcher, R., Tobin, H., … Green, J. (2016). Parent-mediated social communication therapy for young children with autism (PACT): long-term follow-up of a randomised controlled trial. Lancet, 388, 25012509. doi:10.1016/S0140-6736(16)31229-6CrossRefGoogle ScholarPubMed
Pierce, K., Gazestani, V. H., Bacon, E., Barnes, C. C., Cha, D., Nalabolu, S., … Courchesne, E. (2019). Evaluation of the diagnostic stability of the early autism spectrum disorder phenotype in the general population starting at 12 months. JAMA Pediatrics, 173, 578587. doi:10.1001/jamapediatrics.2019.0624CrossRefGoogle ScholarPubMed
Piven, J., Elison, J. T., & Zylka, M. J. (2017). Toward a conceptual framework for early brain and behavior development in autism. Molecular Psychiatry, 22, 13851394. doi:10.1038/mp.2017.131CrossRefGoogle Scholar
Posner, M. I., Rothbart, M. K., Sheese, B. E., & Voelker, P. (2014). Developing attention: Behavioral and brain mechanisms. Advanced Neuroscience (Hindawi), 2014, 405094. doi:10.1155/2014/405094Google ScholarPubMed
Richards, J. E., Reynolds, G. D., & Courage, M. L. (2010). The neural bases of infant attention. Current Directions in Psychological Science, 19, 4146. doi:10.1177/0963721409360003CrossRefGoogle ScholarPubMed
Sacrey, L. A., Bryson, S. E., & Zwaigenbaum, L. (2013). Prospective examination of visual attention during play in infants at high-risk for autism spectrum disorder: A longitudinal study from 6 to 36 months of age. Behavioural Brain Research, 256, 441450. doi:10.1016/j.bbr.2013.08.028CrossRefGoogle ScholarPubMed
Sacrey, L. A., Zwaigenbaum, L., Bryson, S., Brian, J., Smith, I. M., Roberts, W., … Armstrong, V. (2015). Can parents’ concerns predict autism spectrum disorder? A prospective study of high-risk siblings from 6 to 36 months of age. Journal of the American Academy of Child and Adolescent Psychiatry, 54, 470478. doi:10.1016/j.jaac.2015.03.014.CrossRefGoogle ScholarPubMed
Sandin, S., Lichtenstein, P., Kuja-Halkola, R., Larsson, H., Hultman, C. M., & Reichenberg, A. (2014). The familial risk of autism. JAMA, 311, 17701777. doi:10.1001/jama.2014.4144CrossRefGoogle ScholarPubMed
Schreibman, L., Dawson, G., Stahmer, A. C., Landa, R., Rogers, S. J., McGee, G. G., … Halladay, A. (2015). Naturalistic developmental behavioral interventions: Empirically validated treatments for autism spectrum disorder. Journal of Autism and Developmental Disorders, 45, 24112428. doi:10.1007/s10803-015-2407-8CrossRefGoogle ScholarPubMed
Schwichtenberg, A. J., Kellerman, A. M., Young, G. S., Miller, M., & Ozonoff, S. (2019). Mothers of children with autism spectrum disorders: Play behaviors with infant siblings and social responsiveness. Autism, 23, 821833. doi:10.1177/1362361318782220CrossRefGoogle ScholarPubMed
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 and Adolescent Psychiatry, 47, 921929. doi:10.1097/CHI.0b013e318179964fCrossRefGoogle Scholar
Smith, L. B., Jayaraman, S., Clerkin, E., & Yu, C. (2018). The developing infant creates a curriculum for statistical learning. Trends in Cognitive Sciences, 22, 325336. doi:10.1016/j.tics.2018.02.004CrossRefGoogle ScholarPubMed
Sroufe, L. A. (2005). Attachment and development: A prospective, longitudinal study from birth to adulthood. Attachment & Human Development, 7, 349367. doi:10.1080/14616730500365928CrossRefGoogle ScholarPubMed
Stams, G. J., Juffer, F., & van, I. M. H. (2002). Maternal sensitivity, infant attachment, and temperament in early childhood predict adjustment in middle childhood: The case of adopted children and their biologically unrelated parents. Developmental Psychology, 38, 806821. doi:10.1037//0012-1649.38.5.806CrossRefGoogle ScholarPubMed
Steele, A., Karmiloff-Smith, A., Cornish, K., & Scerif, G. (2012). The multiple subfunctions of attention: Differential developmental gateways to literacy and numeracy. Child Development, 83, 20282041. doi:10.1111/j.1467-8624.2012.01809.xCrossRefGoogle ScholarPubMed
Steiner, AM, Gengoux, GW, Smith, A, & Chawarska, K. (2018). Parent-child interaction synchrony for infants at-risk for autism spectrum disorder. J Autism Dev Disord, 48(10), 35623572. doi:10.1007/s10803-018-3624-8CrossRefGoogle ScholarPubMed
Suarez-Rivera, C., Smith, L. B., & Yu, C. (2019). Multimodal parent behaviors within joint attention support sustained attention in infants. Developmental Psychology, 55, 96109. doi:10.1037/dev0000628CrossRefGoogle ScholarPubMed
Talbott, M. R., Nelson, C. A., & Tager-Flusberg, H. (2015). Maternal gesture use and language development in infant siblings of children with autism spectrum disorder. Journal of Autism and Developmental Disorders, 45, 414. doi:10.1007/s10803-013-1820-0CrossRefGoogle ScholarPubMed
Tomasello, M. (1992). The social bases of language acquisition. Social Development, 1, 6787.CrossRefGoogle Scholar
Tomasello, M., & Farrar, M. J. (1986). Joint attention and early language. Child Development, 57, 14541463. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/3802971.CrossRefGoogle ScholarPubMed
Tomasello, M., & Todd, J. (1983). Joint attention and lexical acquisition style. First Language, 4, 197212.CrossRefGoogle Scholar
Toth, S. L., & Cicchetti, D. (2010). The historical origins and developmental pathways of the discipline of developmental psychopathology.The Israel Journal of Psychiatry and Related Sciences, 47, 95104. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/20733251.Google ScholarPubMed
Vivanti, G., & Rogers, S. J. (2014). Autism and the mirror neuron system: Insights from learning and teaching. Philosophical Transactions of the Royal Society of London. Series B, Biological sciences, 369, 20130184. doi:10.1098/rstb.2013.0184CrossRefGoogle ScholarPubMed
Wan, M. W., Green, J., Elsabbagh, M., Johnson, M., Charman, T., Plummer, F., & BASIS Team. (2012). Parent-infant interaction in infant siblings at risk of autism. Research in Developmental Disabilities, 33, 924932. doi:10.1016/j.ridd.2011.12.011CrossRefGoogle ScholarPubMed
Wan, M. W., Green, J., Elsabbagh, M., Johnson, M., Charman, T., Plummer, F., & BASIS Team (2013). Quality of interaction between at-risk infants and caregiver at 12-15 months is associated with 3-year autism outcome. Journal of Child Psychology and Psychiatry, 54, 763771. doi:10.1111/jcpp.12032CrossRefGoogle ScholarPubMed
Wan, M. W., Green, J., & Scott, J. (2019). A systematic review of parent-infant interaction in infants at risk of autism. Autism, 23, 811820. doi:10.1177/1362361318777484CrossRefGoogle ScholarPubMed
Wass, S. V., Jones, E. J., Gliga, T., Smith, T. J., Charman, T., Johnson, M. H., & BASIS team. (2015). Shorter spontaneous fixation durations in infants with later emerging autism. Scientific Reports, 5, 8284. doi:10.1038/srep08284CrossRefGoogle ScholarPubMed
Winder, B. M., Wozniak, R. H., Parlade, M. V., & Iverson, J. M. (2013). Spontaneous initiation of communication in infants at low and heightened risk for autism spectrum disorders. Developmental Psychology, 49, 19311942. doi:10.1037/a0031061CrossRefGoogle ScholarPubMed
Yu, C., & Smith, L. B. (2013). Joint attention without gaze following: Human infants and their parents coordinate visual attention to objects through eye-hand coordination. PLoS One, 8, e79659. doi:10.1371/journal.pone.0079659CrossRefGoogle ScholarPubMed
Yu, C., & Smith, L. B. (2015). Linking joint attention with hand-eye coordination—A sensorimotor approach to understanding child-parent social interaction. Cognitive Science, 2015, 27632768. Retrieved from https://www.ncbi.nlm.nih.gov/pubmed/29226280.Google Scholar
Yu, C., & Smith, L. B. (2016). The social origins of sustained attention in one-year-old human infants. Current Biology, 26, 12351240. doi:10.1016/j.cub.2016.03.026CrossRefGoogle ScholarPubMed
Yu, C., & Smith, L. B. (2017a). Hand-eye coordination predicts joint attention. Child Development, 88, 20602078. doi:10.1111/cdev.12730CrossRefGoogle Scholar
Yu, C., & Smith, L. B. (2017b). Multiple sensory-motor pathways lead to coordinated visual attention. Cognitive Sciences, 41, 531. doi:10.1111/cogs.12366CrossRefGoogle Scholar
Yu, C., Suanda, S. H., & Smith, L. B. (2019). Infant sustained attention but not joint attention to objects at 9 months predicts vocabulary at 12 and 15 months. Developmental Science, 22, e12735. doi:10.1111/desc.12735CrossRefGoogle Scholar
Zachar, P. (2015). Psychiatric disorders: Natural kinds made by the world or practical kinds made by us? World Psychiatry, 14, 288290. doi:10.1002/wps.20240CrossRefGoogle ScholarPubMed
Zeanah, C. H. (Ed.) (2018). Handbook of infant mental health (4th ed.). New York: Guilford Press.Google Scholar
Zwaigenbaum, L., Bauman, M. L., Stone, W. L., Yirmiya, N., Estes, A., Hansen, R. L., … Wetherby, A. (2015). Early identification of autism spectrum disorder: Recommendations for practice and research. Pediatrics, 136, S10S40.CrossRefGoogle ScholarPubMed
Zwaigenbaum, L., Bryson, S., Rogers, T., Roberts, W., Brian, J., & Szatmari, P. (2005). Behavioral manifestations of autism in the first year of life. International Journal of Developmental Neuroscience, 23, 143152. doi:10.1016/j.ijdevneu.2004.05.001CrossRefGoogle ScholarPubMed
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