Abstract
Purpose:
Caregivers of autistic children present with high stress levels, which have been associated with poorer child outcomes in several domains, including language development. However, prior to this study, it was unknown whether elevated caregiver stress was associated with language development in infant siblings of autistic children (Sibs-autism), who are at increased likelihood of receiving a future diagnosis of autism and/or language impairment compared to infant siblings of non-autistic children. This study explored the degree to which, as well as the mechanisms by which, caregiver stress was linked with later language outcomes of Sibs-autism and infant siblings of non-autistic children (Sibs-NA).
Method:
Participants were 50 infants (28 Sibs-autism; 22 Sibs-NA) aged 12–18 months at the first time point in this study (Time 1). Infants were seen again 9 months later, at 21–27 months of age (Time 2). Caregiver stress was measured via a validated self-report measure at Time 1. Caregiver language input, the putative mechanism by which caregiver stress may influence later language outcomes, was collected via two daylong recordings from digital recording (Language ENvironment Analysis) devices worn by the child at this same time point. Child language outcomes were measured via standardized and caregiver report measures at Time 2.
Results:
Several models testing hypothesized indirect effects of caregiver stress on later child language outcomes through caregiver language input were statistically significant. Specifically, significant indirect effects suggest that (a) caregivers with increased stress tend to speak less to their infants, and (b) this reduced language input tends to covary with reduced child language outcomes later in life for Sibs-autism and Sibs-NA.
Conclusions:
This study provides new insights into links between caregiver stress, caregiver language input, and language outcomes in Sibs-autism and Sibs-NA. Further work is necessary to understand how to best support caregivers and optimize the language learning environments for infants.
Supplemental Material:

References
-
Abidin, R. R. (2012). Parenting Stress Index–Fourth Edition (PSI-4). Psychological Assessment Resources. - American Psychiatric Association. (2013). Diagnostic and Statistical Manual of Mental Disorders–Fifth Edition (DSM-5). https://doi.org/10.1176/appi.books.9780890425596
-
Bang, J., & Nadig, A. (2015). Learning language in autism: Maternal linguistic input contributes to later vocabulary.Autism Research, 8(2), 214–223. https://doi.org/10.1002/aur.1440 -
Baron, R. M., & Kenny, D. A. (1986). The moderator–mediator variable distinction in social psychological research: Conceptual, strategic, and statistical considerations.Journal of Personality and Social Psychology, 51(6), 1173–1182. https://doi.org./10.1037/0022-3514.51.6.1173 -
Berryhill, M. B. (2016). Mothers' parenting stress and engagement: Mediating role of parental competence.Marriage & Family Review, 52(5), 461–480. https://doi.org/10.1080/01494929.2015.1113600 -
Billstedt, E., Gillberg, I. C., & Gillberg, C. (2005). Autism after adolescence: Population-based 13- to 22-year follow-up study of 120 individuals with autism diagnosed in childhood.Journal of Autism and Developmental Disorders, 35(3), 351–360. https://doi.org/10.1007/s10803-005-3302-5 -
Bitsika, V., & Sharpley, C. F. (2004). Stress, anxiety and depression among parents of children with autism spectrum disorder.Australian Journal of Guidance and Counselling, 14(2), 151–161. https://doi.org/10.1017/S1037291100002466 -
Bitsika, V., Sharpley, C. F., & Bell, R. (2013). The buffering effect of resilience upon stress, anxiety and depression in parents of a child with an autism spectrum disorder.Journal of Developmental and Physical Disabilities, 25(5), 533–543. https://doi.org/10.1007/s10882-013-9333-5 -
Blank, A., Frush Holt, R., Pisoni, D. B., & Kronenberger, W. G. (2020). Associations between parenting stress, language comprehension, and inhibitory control in children with hearing loss.Journal of Speech, Language, and Hearing Research, 63(1), 321–333. https://doi.org/10.1044/2019_JSLHR-19-00230 -
Bonis, S. (2016). Stress and parents of children with autism: A review of literature.Issues in Mental Health Nursing, 37(3), 153–163. https://doi.org/10.3109/01612840.2015.1116030 -
Bottema-Beutel, K., Kapp, S. K., Lester, J. N., Sasson, N. J., & Hand, B. N. (2021). Avoiding ableist language: Suggestions for autism researchers.Autism in Adulthood, 3(1), 18–29. https://doi.org/10.1089/aut.2020.0014 -
Bruyneel, E., Demurie, E., Warreyn, P., & Roeyers, H. (2019). The mediating role of joint attention in the relationship between motor skills and receptive and expressive language in siblings at risk for autism spectrum disorder.Infant Behavior and Development, 57, 101377. https://doi.org/10.1016/j.infbeh.2019.101377 -
Bryson, S. E., Zwaigenbaum, L., Brian, J., Roberts, W., Szatmari, P., Rombough, V., & McDermott, C. (2007). A prospective case series of high-risk infants who developed autism.Journal of Autism and Developmental Disorders, 37(1), 12–24. https://doi.org/10.1007/s10803-006-0328-2 -
Charman, T., Loth, E., Tillmann, J., Crawley, D., Wooldridge, C., Goyard, D., Ahmad, J., Auyeung, B., Ambrosino, S., Banaschewski, T., Baron-Cohen, S., Baumeister, S., Beckmann, C., Bölte, S., Bourgeron, T., Bours, C., Brammer, M., Brandeis, D., Brogna, C., … Buitelaar, J. K. (2017). The EU-AIMS Longitudinal European Autism Project (LEAP): Clinical characterisation.Molecular Autism, 8, Article 27. https://doi.org/10.1186/s13229-017-0145-9 -
Choi, B., Nelson, C. A., Rowe, M. L., & Tager-Flusberg, H. (2020). Reciprocal influences between parent input and child language skills in dyads involving high- and low-risk infants for autism spectrum disorder.Autism Research, 13(7), 1168–1183. https://doi.org/10.1002/aur.2270 -
Choi, B., Shah, P., Rowe, M. L., Nelson, C. A., & Tager-Flusberg, H. (2020). Gesture development, caregiver responsiveness, and language and diagnostic outcomes in infants at high and low risk for autism.Journal of Autism and Developmental Disorders, 50(7), 2556–2572. https://doi.org/10.1007/s10803-019-03980-8 -
DesChamps, T. D., Ibañez, L. V., Edmunds, S. R., Dick, C. C., & Stone, W. L. (2020). Parenting stress in caregivers of young children with ASD concerns prior to a formal diagnosis.Autism Research, 13(1), 82–92. https://doi.org/10.1002/aur.2213 -
Eaves, L. C., & Ho, H. H. (2008). Young adult outcome of autism spectrum disorders.Journal of Autism and Developmental Disorders, 38(4), 739–747. https://doi.org/10.1007/s10803-007-0441-x -
Elison, J. T., Paterson, S. J., Wolff, J. J., Reznick, J. S., Sasson, N. J., Gu, H., Botteron, K. N., Dager, S. R., Estes, A. M., Evans, A. C., Gerig, G., Hazlett, H. C., Schultz, R. T., Styner, M., Zwaigenbaum, L., Piven, J. , & IBIS Network. (2013). White matter microstructure and atypical visual orienting in 7-month-olds at risk for autism.The American Journal of Psychiatry, 170(8), 899–908. https://doi.org/10.1176/appi.ajp.2012.12091150 -
Ellwood-Lowe, M. E., Foushee, R., & Srinivasan, M. (2020). What causes the word gap? Financial concerns may systematically suppress child-directed speech.PsyArXiv. https://doi.org/10.31234/osf.io/byp4k -
Estes, A., Munson, J., Dawson, G., Koehler, E., Zhou, X.-H., & Abbott, R. (2009). Parenting stress and psychological functioning among mothers of preschool children with autism and developmental delay.Autism, 13(4), 375–387. https://doi.org/10.1177/1362361309105658 -
Feldman, J. I., Daly, C. M., Santapuram, P., Bowman, S. M., Dunham, K., Suzman, E., Keceli-Kaysili, B., & Woynaroski, T. G (2022). The stability and validity of automated indices of vocal development in infant siblings of children with and without autism[Manuscript in preparation] . -
Feldman, J. I., Raj, S., Bowman, S. M., Santapuram, P., Golden, A. J., Daly, C., Dunham, K., Suzman, E., Augustine, A. E., Garla, V., Muhumuza, A., Cascio, C. J., Williams, K. L., Kirby, A. V., Keceli-Kaysili, B., & Woynaroski, T. G. (2021). Sensory responsiveness is linked with communication in infant siblings of children with and without autism.Journal of Speech, Language, and Hearing Research, 64(6), 1964–1976. https://doi.org/10.1044/2021_JSLHR-20-00196 -
Fenson, L., Marchman, V. A., Thal, D. J., Dale, P. S., & Reznick, J. S. (2007). MacArthur–Bates Communicative Development Inventories: User's guide and technical manual. Brookes. -
Fogel, A., & Lyra, M. C. D. P. (1997). Dynamics of development in relationships.InF. Masterpasqua & P. A. Perna (Eds.), The psychological meaning of chaos: Translating theory into practice (pp. 75–94). American Psychological Association.https://doi.org/10.1037/10240-003 -
Gilkerson, J., Richards, J. A., Warren, S. F., Montgomery, J. K., Greenwood, C. R., Kimbrough Oller, D., Hansen, J. H. L., & Paul, T. D. (2017). Mapping the early language environment using all-day recordings and automated analysis.American Journal of Speech-Language Pathology, 26(2), 248–265. https://doi.org/10.1044/2016_AJSLP-15-0169 -
Gilkerson, J., Richards, J. A., Warren, S. F., Oller, D. K., Russo, R., & Vohr, B. (2018). Language experience in the second year of life and language outcomes in late childhood.Pediatrics, 142(4), e20174276. https://doi.org/10.1542/peds.2017-4276 -
Goldberg, S. (1977). Social competence in infancy: A model of parent–infant interaction.Merrill-Palmer Quarterly of Behavior and Development, 23(3), 163–177. https://www.jstor.org/stable/23084549 -
Golinkoff, R. M., Hoff, E., Rowe, M. L., Tamis-LeMonda, C. S., & Hirsh-Pasek, K. (2019). Language matters: Denying the existence of the 30-million-word gap has serious consequences.Child Development, 90(3), 985–992. https://doi.org/10.1111/cdev.13128 -
Haebig, E., McDuffie, A., & Ellis Weismer, S. (2013). Brief report: Parent verbal responsiveness and language development in toddlers on the autism spectrum.Journal of Autism and Developmental Disorders, 43(9), 2218–2227. https://doi.org/10.1007/s10803-013-1763-5 -
Hart, B., & Risley, T. R. (1995). Meaningful differences in the everyday experience of young American children. Brookes. -
Haskett, M. E., Ahern, L. S., Ward, C. S., & Allaire, J. C. (2006). Factor structure and validity of the parenting stress index-short form.Journal of Clinical Child & Adolescent Psychology, 35(2), 302–312. https://doi.org/10.1207/s15374424jccp3502_14 -
Hayes, A. F. (2009). Beyond Baron and Kenny: Statistical mediation analysis in the new millennium.Communication Monographs, 76(4), 408–420. https://doi.org/10.1080/03637750903310360 -
Hayes, A. F. (2017). Introduction to mediation, moderation, and conditional process analysis: A regression-based approach. Guilford Press. -
Hayes, S. A., & Watson, S. L. (2013). The impact of parenting stress: A meta-analysis of studies comparing the experience of parenting stress in parents of children with and without autism spectrum disorder.Journal of Autism and Developmental Disorders, 43(3), 629–642. https://doi.org/10.1007/s10803-012-1604-y -
Hazlett, H. C., Gu, H., Munsell, B. C., Kim, S. H., Styner, M., Wolff, J. J., Elison, J. T., Swanson, M. R., Zhu, H., Botteron, K. N., Collins, D. L., Constantino, J. N., Dager, S. R., Estes, A. M., Evans, A. C., Fonov, V. S., Gerig, G., Kostopoulos, P., McKinstry, R. C., … The IBIS Network. (2017). Early brain development in infants at high risk for autism spectrum disorder.Nature, 542(7641), 348–351. https://doi.org/10.1038/nature21369 -
Heidlage, J. K., Cunningham, J. E., Kaiser, A. P., Trivette, C. M., Barton, E. E., Frey, J. R., & Roberts, M. Y. (2020). The effects of parent-implemented language interventions on child linguistic outcomes: A meta-analysis.Early Childhood Research Quarterly, 50, 6–23. https://doi.org/10.1016/j.ecresq.2018.12.006 -
Hirsh-Pasek, K., Adamson, L. B., Bakeman, R., Owen, M. T., Golinkoff, R. M., Pace, A., Yust, P. K. S., & Suma, K. (2015). The contribution of early communication quality to low-income children's language success.Psychological Science, 26(7), 1071–1083. https://doi.org/10.1177/0956797615581493 -
Hoff, E. (2006). How social contexts support and shape language development.Developmental Review, 26(1), 55–88. https://doi.org/10.1016/j.dr.2005.11.002 -
Karp, E. A., Ibañez, L. V., Warren, Z., & Stone, W. L. (2017). Brief report: What drives parental concerns about their 18-month-olds at familial risk for autism spectrum disorder?.Journal of Autism and Developmental Disorders, 47(5), 1535–1541. https://doi.org/10.1007/s10803-017-3060-1 -
Landa, R. J., Gross, A. L., Stuart, E. A., & Bauman, M. (2012). Latent class analysis of early developmental trajectory in baby siblings of children with autism.Journal of Child Psychology and Psychiatry and Allied Disciplines, 53(9), 986–996. https://doi.org/10.1111/j.1469-7610.2012.02558.x -
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(6), 694–703. https://doi.org/10.1177/1362361313491327 -
Leung, C. Y. Y., Hernandez, M. W., & Suskind, D. L. (2020). Enriching home language environment among families from low-SES backgrounds: A randomized controlled trial of a home visiting curriculum.Early Childhood Research Quarterly, 50, 24–35. https://doi.org/10.1016/j.ecresq.2018.12.005 -
Lord, C., Rutter, M., DiLavore, P., Risi, S., Gotham, K., & Bishop, S. L. (2012). Autism Diagnostic Observation Schedule, Second Edition (ADOS-2) Manual (Part I): Modules 1–4. Western Psychological Services. -
MacDuffie, K. E., Turner-Brown, L., Estes, A. M., Wilfond, B. S., Dager, S. R., Pandey, J., Zwaigenbaum, L., Botteron, K. N., Pruett, J. R., Jr., Piven, J., Peay, H. L. , & The IBIS Network. (2020). “If he has it, we know what to do”: Parent perspectives on familial risk for autism spectrum disorder.Journal of Pediatric Psychology, 45(2), 121–130. https://doi.org/10.1093/jpepsy/jsz076 -
McDuffie, A., & Yoder, P. (2010). Types of parent verbal responsiveness that predict language in young children with autism spectrum disorder.Journal of Speech, Language, and Hearing Research, 53(4), 1026–1039. https://doi.org/10.1044/1092-4388(2009/09-0023 -
McGillion, M., Pine, J. M., Herbert, J. S., & Matthews, D. (2017). A randomised controlled trial to test the effect of promoting caregiver contingent talk on language development in infants from diverse socioeconomic status backgrounds.Journal of Child Psychology and Psychiatry and Allied Disciplines, 58(10), 1122–1131. https://doi.org/10.1111/jcpp.12725 -
Meera, S. S., Donovan, K., Wolff, J. J., Zwaigenbaum, L., Elison, J. T., Kinh, T., Shen, M. D., Estes, A. M., Hazlett, H. C., Watson, L. R., Baranek, G. T., Swanson, M. R., John, T. S., Burrows, C. A., Schultz, R. T., Dager, S. R., Botteron, K. N., Pandey, J., Piven, J. , & IBIS Network. (2020). Towards a data-driven approach to screen for autism risk at 12 months of age.Journal of the American Academy of Child & Adolescent Psychiatry, 60(8), 968–977. https://doi.org/10.1016/j.jaac.2020.10.015 -
Messinger, D. S., Young, G. S., Ozonoff, S., Dobkins, K., Carter, A., Zwaigenbaum, L., Landa, R. J., Charman, T., Stone, W. L., Constantino, J. N., Hutman, T., Carver, L. J., Bryson, S., Iverson, J. M., Strauss, M. S., Rogers, S. J., & Sigman, M. (2013). Beyond autism: A baby siblings research consortium study of high-risk children at three years of age.Journal of the American Academy of Child & Adolescent Psychiatry, 52(3), 300–308.e1. https://doi.org/10.1016/j.jaac.2012.12.011 -
Messinger, D. S., Young, G. S., Webb, S. J., Ozonoff, S., Bryson, S. E., Carter, A., Carver, L., Charman, T., Chawarska, K., Curtin, S., Dobkins, K., Hertz-Picciotto, I., Hutman, T., Iverson, J. M., Landa, R., Nelson, C. A., Stone, W. L., Tager-Flusberg, H., & Zwaigenbaum, L. (2015). Early sex differences are not autism-specific: A Baby Siblings Research Consortium (BSRC) study.Molecular Autism, 6(1), Article 32. https://doi.org/10.1186/s13229-015-0027-y -
Mullen, E. M. (1995). Mullen scales of early learning. AGS. -
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(5), 523–547. https://doi.org/10.1111/infa.12090 -
Oller, D. K., Niyogi, P., Gray, S., Richards, J. A., Gilkerson, J., Xu, D., Yapanel, U., & Warren, S. F. (2010). Automated vocal analysis of naturalistic recordings from children with autism, language delay, and typical development.Proceedings of the National Academy of Sciences, 107(30), 13354–13359. https://doi.org/10.1073/pnas.1003882107 -
Ozonoff, S., Gangi, D., Hanzel, E. P., Hill, A., Hill, M. M., Miller, M., Schwichtenberg, A. J., Steinfeld, M. B., Parikh, C., & Iosif, A.-M. (2018). Onset patterns in autism: Variation across informants, methods, and timing.Autism Research, 11(5), 788–797. https://doi.org/10.1002/aur.1943 -
Ozonoff, S., Young, G. S., Carter, A., Messinger, D., Yirmiya, N., Zwaigenbaum, L., Bryson, S., Carver, L. J., Constantino, J. N., Dobkins, K., Hutman, T., Iverson, J. M., Landa, R., Rogers, S. J., Sigman, M., & Stone, W. L. (2011). Recurrence risk for autism spectrum disorders: A baby siblings research consortium study.Pediatrics, 128(3), e488–e495. https://doi.org/10.1542/peds.2010-2825 -
Ozonoff, S., Young, G. S., Landa, R. J., Brian, J., Bryson, S., Charman, T., Chawarska, K., Macari, S. L., Messinger, D., Stone, W. L., Zwaigenbaum, L., & 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 and Allied Disciplines, 56(9), 988–998. https://doi.org/10.1111/jcpp.12421 -
Quittner, A. L., Barker, D. H., Cruz, I., Snell, C., Grimley, M. E., Botteri, M. , & CDaCI Investigative Team. (2010). Parenting stress among parents of deaf and hearing children: Associations with language delays and behavior problems.Parenting: Science and Practice, 10(2), 136–155. https://doi.org/10.1080/15295190903212851 - R Core Team. (2020). R: A language and environment for statistical computing
(version 4.0.2) . R Foundation for Statistical Computing. https://www.R-project.org/ -
Ramírez, N. F., Lytle, S. R., & Kuhl, P. K. (2020). Parent coaching increases conversational turns and advances infant language development.Proceedings of the National Academy of Sciences, 117(7), 3484–3491. https://doi.org/10.1073/pnas.1921653117 -
Roberts, N. K. (2019). The relationship between behavior problems, language development, and parental stress in children with autism[Doctoral dissertation, fielding Graduate University] . ProQuest Dissertations and Theses Global. -
Rogers, S. J., Yoder, P., Estes, A., Warren, Z., McEachin, J., Munson, J., Rocha, M., Greenson, J., Wallace, L., Gardner, E., Dawson, G., Sugar, C. A., Hellemann, G., & Whelan, F. (2021). A multisite randomized controlled trial comparing the effects of intervention intensity and intervention style on outcomes for young children with autism.Journal of the American Academy of Child & Adolescent Psychiatry, 60(6), 710–722. https://doi.org/10.1016/j.jaac.2020.06.013 -
Romeo, R. R., Choi, B., Gabard-Durnam, L. J., Wilkinson, C. L., Levin, A. R., Rowe, M. L., Tager-Flusberg, H. L., & Nelson, C. A., III. (2021). Parental language input predicts neuroscillatory patterns associated with language development in toddlers at risk of autism.Journal of Autism and Developmental Disorders, 52(6), 2717–2731. https://doi.org/10.1007/s10803-021-05024-6 -
Romeo, R. R., Leonard, J. A., Robinson, S. T., West, M. R., Mackey, A. P., Rowe, M. L., & Gabrieli, J. D. E. (2018). Beyond the 30-million-word gap: Children's conversational exposure is associated with language-related brain function.Psychological Science, 29(5), 700–710. https://doi.org/10.1177/0956797617742725 -
Rowe, M. L. (2012). A longitudinal investigation of the role of quantity and quality of child-directed speech in vocabulary development.Child Development, 83(5), 1762–1774. https://doi.org/10.1111/j.1467-8624.2012.01805.x -
Rushton, J. P., Brainerd, C. J., & Pressley, M. (1983). Behavioral development and construct validity: The principle of aggregation.Psychological Bulletin, 94(1), 18–38. https://doi.org/10.1037/0033-2909.94.1.18 -
Rutter, M., Bailey, A., & Lord, C. (2003). The Social Communication Questionnaire (SCQ). Western Psychological Services. -
Sameroff, A. (2009). The transactional model.InA. Sameroff (Ed.), The transactional model of development: How children and contexts shape each other (pp. 3–21). American Psychological Association. https://doi.org/10.1037/11877-001 -
Santapuram, P., Feldman, J. I., Bowman, S. M., Raj, S., Suzman, E., Crowley, S., Kim, S. Y., Keceli-Kaysili, B., Bottema-Beutel, K., Lewkowicz, D. J., Wallace, M. T., & Woynaroski, T. G. (2022). Mechanisms by which early eye gaze to the mouth during multisensory speech influences expressive communication development in infant siblings of children with and without autism.Mind, Brain and Education, 16(1), 62–74. https://doi.org/10.1111/mbe.12310 -
Sarant, J., & Garrard, P. (2014). Parenting stress in parents of children with cochlear implants: Relationships among parent stress, child language, and unilateral versus bilateral implants.Journal of Deaf Studies and Deaf Education, 19(1), 85–106. https://doi.org/10.1093/deafed/ent032 -
Seidl, A., Cristia, A., Soderstrom, M., Ko, E. S., Abel, E. A., Kellerman, A., & Schwichtenberg, A. J. (2018). Infant–mother acoustic–prosodic alignment and developmental risk.Journal of Speech, Language, and Hearing Research, 61(6), 1369–1380. https://doi.org/10.1044/2018_JSLHR-S-17-0287 -
Shonkoff, J. P., & Phillips, D. A. (2000). From neurons to neighborhoods: The science of early child development. National Academies Press. -
Sparrow, S. S., Cicchetti, D. V., & Bella, D. A. (2005). Vineland Adaptive Behavior Scales–Second Edition (VABS-2). Pearson. -
Stekhoven, D. J., & Bühlmann, P. (2012). MissForest—Non-parametric missing value imputation for mixed-type data.Bioinformatics, 28, 112–118. https://doi.org/10.1093/bioinformatics/btr597 -
Swanson, M. R., Donovan, K., Paterson, S., Wolff, J. J., Parish-Morris, J., Meera, S. S., Watson, L. R., Estes, A. M., Marrus, N., Elison, J. T., Shen, M. D., McNeilly, H. B., MacIntyre, L., Zwaigenbaum, L., St. John, T., Botteron, K., Dager, S., Piven, J. , & the IBIS Network. (2019). Early language exposure supports later language skills in infants with and without autism.Autism Research, 12(12), 1784–1795. https://doi.org/10.1002/aur.2163 -
Swanson, M. R., Shen, M. D., Wolff, J. J., Boyd, B., Clements, M., Rehg, J., Elison, J. T., Paterson, S., Parish-Morris, J., Chappell, J. C., Hazlett, H. C., Emerson, R. W., Botteron, K., Pandey, J., Schultz, R. T., Dager, S. R., Zwaigenbaum, L., Estes, A. M., Piven, J. , & the IBIS Network. (2018). Naturalistic language recordings reveal “hyper-vocal” infants at high familial risk for autism.Child Development, 89(2), e60–e73. https://doi.org/10.1111/cdev.12777 -
Tager-Flusberg, H. (2016). Risk factors associated with language in autism spectrum disorder: Clues to underlying mechanisms.Journal of Speech, Language, and Hearing Research, 59(1), 143–154. https://doi.org/10.1044/2015_JSLHR-L-15-0146 -
Tamis-LeMonda, C. S., Kuchirko, Y., & Song, L. (2014). Why is infant language learning facilitated by parental responsiveness?.Current Directions in Psychological Science, 23(2), 121–126. https://doi.org/10.1177/0963721414522813 -
Vihman, M. M. (2014). Phonological development: The first two years (2nd ed.). Wiley. -
Wan, M. W., Green, J., Elsabbagh, M., Johnson, M., Charman, T., Plummer, F. , & the BASIS Team. (2012). Parent–infant interaction in infant siblings at risk of autism.Research in Developmental Disabilities, 33(3), 924–932. https://doi.org/10.1016/j.ridd.2011.12.011 -
Wan, M. W., Green, J., Elsabbagh, M., Johnson, M., Charman, T., Plummer, F. , & the BASIS Team. (2013). Quality of interaction between at-risk infants and caregiver at 12–15 months is associated with 3-year autism outcome.The Journal of Child Psychology and Psychiatry, 54(7), 763–771. https://doi.org/10.1111/jcpp.12032 -
Warren, S. F., Gilkerson, J., Richards, J. A., Oller, D. K., Xu, D., Yapanel, U., & Gray, S. (2010). What automated vocal analysis reveals about the vocal production and language learning environment of young children with autism.Journal of Autism and Developmental Disorders, 40(5), 555–569. https://doi.org/10.1007/s10803-009-0902-5 -
Weitlauf, A. S., Broderick, N., Stainbrook, J. A., Taylor, J. L., Herrington, C. G., Nicholson, A. G., Santulli, M., Dykens, E. M., Juárez, A. P., & Warren, Z. E. (2020). Mindfulness-based stress reduction for parents implementing early intervention for autism: An RCT.Pediatrics, 145(Suppl. 1), S81–S92. https://doi.org/10.1542/peds.2019-1895K -
Whiteside-Mansell, L., Ayoub, C., McKelvey, L., Faldowski, R. A., Hart, A., & Shears, J. (2007). Parenting stress of low-income parents of toddlers and preschoolers: Psychometric properties of a short form of the parenting stress index.Parenting: Science and Practice, 7(1), 26–56. https://doi.org/10.1080/15295190709336775 -
Woolfenden, S., Sarkozy, V., Ridley, G., & Williams, K. (2012). A systematic review of the diagnostic stability of autism spectrum disorder.Research in Autism Spectrum Disorders, 6(1), 345–354. https://doi.org/10.1016/j.rasd.2011.06.008 -
Woynaroski, T. G. (2014). The stability and validity of automated vocal analysis in preschoolers with autism spectrum disorder in the early stages of language development[Doctoral dissertation Vanderbilt University Institutional Repository] , http://hdl.handle.net/1803/14805 -
Woynaroski, T. G., Yoder, P. J., Fey, M. E., & Warren, S. F. (2014). A transactional model of spoken vocabulary variation in toddlers with intellectual disabilities.Journal of Speech, Language, and Hearing Research, 57(5), 1754–1763. https://doi.org/10.1044/2014_JSLHR-L-13-0252 -
Yirmiya, N., Gamliel, I., Pilowsky, T., Feldman, R., Baron-Cohen, S., & Sigman, M. (2006). The development of siblings of children with autism at 4 and 14 months: Social engagement, communication, and cognition.Journal of Child Psychology and Psychiatry and Allied Disciplines, 47(5), 511–523. https://doi.org/10.1111/j.1469-7610.2005.01528.x -
Yoder, P., Oller, D. K., Richards, J. A., Gray, S., & Gilkerson, J. (2013). Stability and validity of an automated measure of vocal development from day-long samples in children with and without autism spectrum disorder.Autism Research, 6(2), 103–107. https://doi.org/10.1002/aur.1271 -
Yoder, P., Watson, L. R., & Lambert, W. (2015). Value-added predictors of expressive and receptive language growth in initially nonverbal preschoolers with autism spectrum disorders.Journal of Autism and Developmental Disorders, 45(5), 1254–1270. https://doi.org/10.1007/s10803-014-2286-4 -
Zaidman-Zait, A., Mirenda, P., Zumbo, B. D., Georgiades, S., Szatmari, P., Bryson, S., Fombonne, E., Roberts, W., Smith, I., Vaillancourt, T., Volden, J., Waddell, C., Zwaigenbaum, L., Duku, E., Thompson, A. , & the Pathways in ASD Study Team. (2011). Factor analysis of the parenting stress index-short form with parents of young children with autism spectrum disorders.Autism Research, 4(5), 336–346. https://doi.org/10.1002/aur.213