Publications

University of South Carolina Neurodevelopmental Disorders Lab
Lab Member Publications since 2008
(Lab members designated in bold text; undergraduate students designated with +)

2020

• Kelleher, B. L., Hogan, A. L., Ezell, J., Caravella, K., Schmidt, J., Wang, Q., & Roberts, J. E. (2020). Anxiety and threat-related attentional biases in adolescents with fragile X syndrome. Journal of Intellectual Disability Research, 64(4), 296-302. doi: 10.111/jir.12715
• Hahn, L. J., Hamrick, L. R., Kelleher, B. L., Roberts, J. E. (2020). Autism Spectrum Disorder-Associated Behavior in Infants with Down Syndrome. Journal of Health Science & Education, 4(2), 1-6. doi: 10.0000/JHSE.1000180
• Conte, S., Richards, J. E., Guy, M. W., Xie, W., & Roberts, J. E. (2020). Face-sensitive brain responses in the first year of life. NeuroImage, 211, 116602. doi: 10.1016/j.neuroimage.2020.116602
• Klusek, J., Moser, C., Schmidt, J., Abbeduto, L., & Roberts, J. E. (2020). A novel eye‐tracking paradigm for indexing social avoidance‐related behavior in fragile X syndrome. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 183(1), 5–16. doi: 10.1002/ajmg.b.32757
• Moskowitz, L. J., Will, E. A., Black, C. J., & Roberts, J. E. (2020). Restricted and Repetitive Behaviors in Males and Females with Fragile X Syndrome: Developmental Trajectories in Toddlers Through Young Adults Developmental Trajectories of Restricted and Repetitive Behaviors in Males and Females with Fragile X Syndrome. Journal of Autism and Developmental Disorders. doi: 10.1007/s10803-020-04459-7

2019

• Roberts, J. E., Crawford, H., Hogan, A. L., Fairchild, A., Tonnsen, B., Brewe, A., O’Conner, S., Roberts, D. A., Abbeduto, L. (2019). Social Avoidance Emerges in Infancy and Persists into Adulthood in Fragile X Syndrome. Journal of Autism and Developmental Disorders, 49(9), 3753–3766. doi: 10.1007/s10803-019-04051-8
• Hughes, K. R., Hogan, A. L., Roberts, J. E., & Klusek, J. (2019). Gesture Frequency and Function in Infants With Fragile X Syndrome and Infant Siblings of Children With Autism Spectrum Disorder. Journal of Speech, Language, and Hearing Research, 62(7), 2386–2399. doi: 10.1044/2019_jslhr-l-17-0491
• Roberts, J. E., Crawford, H., Will, E. A., Hogan, A. L., Mcquillin, S., Tonnsen, B. L., O’Conner, S., Roberts, D.A., & Brewe, A. M. (2019). Infant Social Avoidance Predicts Autism but Not Anxiety in Fragile X Syndrome. Frontiers in Psychiatry, 10, 199. doi: 10.3389/fpsyt.2019.00199
• Will, E. A., Bishop, S. L., & Roberts, J. E. (2019). Developmental divergence: motor trajectories in children with fragile X syndrome with and without co-occurring autism. Journal of Neurodevelopmental Disorders, 11(23). doi: 10.1186/s11689-019-9281-1
• Wall, C. A., Hogan, A. L., Will, E. A., Mcquillin, S., Kelleher, B. L., & Roberts, J. E. (2019). Early negative affect in males and females with fragile X syndrome: implications for anxiety and autism. Journal of Developmental Disorders, 11(1). doi: 10.1186/s11689-019-9284-y
• Ezell, J., Hogan, A. L., Fairchild, A., Hills, K., Klusek, J., Abbeduto, L., & Roberts, J. E. (2019). Prevalence and predictors of anxiety disorders in adolescent and adult males with autism spectrum disorder and fragile X syndrome. Journal of Autism and Developmental Disorders, 49, 1131-1141. doi: 10.1007/s10803-018-3804-6
• Abbeduto, L., Thurman, A. J., McDuffie, A., Klusek, J., Feigles, R. T., Brown, W. T., Harvey, D. J., Adayev, T., LaFauci, G., Dobkins, C., & Roberts, J. E. (2019). ASD comorbidity in Fragile X Syndrome: Symptom profile and predictors of symptom severity in adolescent and young adult males. Journal of Autism and Developmental Disorders, 49, 960-977. doi: 10.1007/s10803-018-3796-2
• Klusek, J., Fairchild, A. J., & Roberts, J. E. (2019). Vagal Tone as a Putative Mechanism for Pragmatic Competence: An Investigation of Carriers of the FMR1 Premutation. Journal of Autism and Developmental Disorders, 49, 197-208. doi: 10.1007%2Fs10803-018-3714-7

2018

• Roberts, J. E., Ezell, J. E., Fairchild, A. J., Klusek, J., Thurman, A. J., Mcduffie, A., & Abbeduto, L. (2018). Biobehavioral composite of social aspects of anxiety in young adults with fragile X syndrome contrasted to autism spectrum disorder. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 177(7), 665–675. doi: 10.1002/ajmg.b.32674 
• Brewe, A. M., Reisinger, D. L., Adlof, S. M., & Roberts, J. E. (2018). Initiating joint attention use in infants at high-risk for autism spectrum disorder. Journal of Intellectual Disability Research, 62(10), 842–853. doi: 10.1111/jir.12539
• Tonnsen, B. L., Wheeler, A. C., Hamrick, L. R., & Roberts, J. E. (2018). Infant Temperament in the FMR1 Premutation and Fragile X Syndrome. Journal of Clinical Child & Adolescent Psychology, 48(3), 412–422. doi: 10.1080/15374416.2018.1514613
• Adolf, S. M., Klusek, J., Hoffman, A., Chitwood, K., Brazendale, A., Riley, K., Abbeduto, L., & Roberts, J. E. (2018) Reading in children with fragile X syndrome: Phonological awareness and feasibility of intervention.  American journal of intellectual and developmental disabilities, 123(3), 193-211. doi: 10.1352/1944-7558-123.3.193
• Guy, M. W., Richards, J. E., Tonnsen, B. L., & Roberts, J. E. (2018). Neural correlates of face processing in etiologically-distinct 12-month-old infants at high-risk of autism spectrum disorder. Developmental cognitive neuroscience, 29, 61-71. doi: 10.1016/j.dcn.2017.03.002
• Robinson, M., Klusek, J., Poe, M. D., Hatton, D. D., & Roberts, J. E. (2018). The Emergence of Effortful Control in Young Boys With Fragile X Syndrome. American journal on intellectual and developmental disabilities, 123(2), 89-102. doi: 10.1352/1944-7558-123.2.89
• Rague, L., Caravella, K. E., Tonnsen, B., Klusek, J., & Roberts, J. E. (2018). Early gesture use in fragile X syndrome. Journal of Intellectual Disability Research, 62(7), 625–636. doi: 10.1111/jir.12498
• Will, E. A., Caravella, K. E., Hahn, L. J., Fidler, D. J., & Roberts, J. E. (2018). Adaptive behavior in infants and toddlers with Down syndrome and fragile X syndrome. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 177(3), 358-368. doi: 10.1002/ajmg.b.32619
• Tonnsen, B. L., Richards, J. E., & Roberts, J. E. (2018). Heart rate-defined sustained attention in infants at risk for autism. Journal of neurodevelopmental disorders, 10(1), 7. doi: 10.1186/s11689-018-9224-2
• Klusek, J., Porter, A., Abbeduto, L., Adayev, T., Tassone, F., Mailick, M., Glicksman, A., Tonnsen, B. L., & Roberts, J. E. (2018). Curvilinear Association Between Language Disfluency and FMR1 CGG Repeat Size Across the Normal, Intermediate, and Premutation Range. Frontiers in genetics, 9, 344. doi: 10.3389/fgene.2018.00344
• Matherly, S. M., Klusek, J., Thurman, A. J., McDuffie, A., Abbeduto, L., & Roberts, J. E. (2018). Cortisol profiles differentiated in adolescents and young adult males with fragile X syndrome versus autism spectrum disorder. Developmental Psychobiology, 60(1), 78-89. doi: 10.1002/dev.21578
• Klusek, J., Ruber, A.+, & Roberts, J. E. (2018). Impaired eye contact in the FMR1 premutation is not associated with social anxiety or the broad autism phenotype. The Clinical Neuropsychologist, 32(7), 1337-1352. doi: 10.1080/13854046.2017.1384063

2017

• Klusek, J., Schmidt, J., Fairchild, A. J., Porter, A., & Roberts, J. E. (2017). Altered sensitivity to social gaze in the FMR1 premutation and pragmatic language competence. Journal of neurodevelopmental disorders, 9(1), 31. doi: 10.1186/s11689-017-9211-z
• Reisinger, D. L., & Roberts, J. E. (2017). Differential Relationships of Anxiety and Autism Symptoms on Social Skills in Young Boys With Fragile X Syndrome. American Journal on Intellectual and Developmental Disabilities, 122(5), 359-373. doi: 10.1352/1944-7558-122.5.359
• Tonnsen, B., Scherr, J., Reisinger, D., & Roberts, J. E. (2017). Behavioral Markers of Emergent Stranger Anxiety in Infants and Toddlers with Fragile X Syndrome. Journal of Autism and Developmental Disorders, 47(11), 3646-3658. doi: 10.1007/s10803-017-3270-6
• Lowell, E. P., Tonnsen, B. L., Bailey, D. B., and Roberts, J. E. (2017) The effects of optimism, religion, and hope on mood and anxiety disorders in women with the FMR1 premutation. Journal of Intellectual Disability Research, 61(10), 916–927. doi: 10.1111/jir.12409
• Hogan, A. L., Caravella, K. E., Ezell, J., Rague, L., Hills, K., & Roberts, J. E. (2017). Autism Spectrum Disorder Symptoms in Infants with Fragile X Syndrome: A Prospective Case Series. Journal of Autism and Developmental Disorders, 47(6), 1628-1644. doi: 10.1007/s10803-017-3081-9
• Klusek, J., LaFauci, G., Adayev, T., Brown, W. T., Tassone, F., & Roberts, J. E. (2017). Reduced vagal tone in women with the FMR1 premutation is associated with FMR1 mRNA but not depression or anxiety. Journal of neurodevelopmental disorders, 9(1), 16. doi: 10.1186/s11689-017-9197-6
• Caravella, K. E., & Roberts, J. E. (2017). Adaptive skill trajectories in infants with fragile X syndrome contrasted to typical controls and infants at high risk for autism. Research in Autism Spectrum Disorders, 40, 1-12. doi: 10.1016/j.rasd.2017.05.002
• Scherr, J. F., Hogan, A. L., Hatton, D., & Roberts, J. E. (2017). Stranger Fear and Early Risk for Social Anxiety in Preschoolers with Fragile X Syndrome Contrasted to Autism Spectrum Disorder. Journal of Autism and Developmental Disorders, 47, 3741-3755. doi: 10.1007/s10803-017-3059-7
• Hahn, L. J., Brady, N. C., McCary, L., Rague, L., & Roberts, J. E. (2017). Early social communication in infants with fragile X syndrome and infant siblings of children with autism spectrum disorder. Research in developmental disabilities, 71, 169-180. doi: 10.1016/j.ridd.2017.10.004

2016

• Roberts, J. E., Tonnsen, B. L., McCary, L. M., Ford, A. L., Golden, R. N., & Bailey, D. B. (2016). Trajectory and predictors of depression and anxiety disorders in mothers with the FMR1 premutation. Biological psychiatry, 79(10), 850-857. doi: 10.1016/j.biopsych.2015.07.015
• Roberts, J. E., McCary, L. M., Shinkareva, S. V., & Bailey Jr, D. B. (2016). Infant development in fragile X syndrome: Cross-syndrome comparisons. Journal of autism and developmental disorders, 46(6), 2088-2099. doi: 10.1007/s10803-016-2737-1
• Robinson, A. N., Roberts, J. E., Brady, N. C., McQuillin, S. D., & Warren, S. F. (2016). Physiological correlates of maternal responsivity in mothers of preschoolers with fragile X syndrome. American journal on intellectual and developmental disabilities, 121(2), 111-120. doi: 10.1352/1944-7558-121.2.111
• Scherr, J. F., Hahn, L. J., Hooper, S. R., Hatton, D., & Roberts, J. E. (2016). HPA axis function predicts development of working memory in boys with FXS. Brain and cognition, 102, 80-90. doi: 10.1016/j.bandc.2015.12.002
• Grefer, M., Flory, K., Cornish, K., Hatton, D., & Roberts, J. E. (2016). The emergence and stability of attention deficit hyperactivity disorder in boys with fragile X syndrome. Journal of Intellectual Disability Research, 60(2), 167-178. doi: 10.1111/jir.12226
• Klusek, J., McGrath, S. E., Abbeduto, L., & Roberts, J. E. (2016). Pragmatic Language Features of Mothers With the FMR1 Premutation Are Associated With the Language Outcomes of Adolescents and Young Adults With Fragile X Syndrome. Journal of Speech, Language, and Hearing Research, 59(1), 49-61. doi: 10.1044/2015_JSLHR-L-15-0102
• Tonnsen, B. L., & Roberts, J. E. (2016) Chapter Two – Characterizing Emergent Anxiety Through the Lens of Fragile X, International Review of Research in Developmental Disabilities, 51, 41-83. doi: 10.1016/bs.irrdd.2016.07.003
• Matherly, S. & Hills, K. (2016). Social Skills Training Programs for Preschool Age Children with Developmental Delays and Autism Spectrum Disorder. South Carolina Association of School Psychologist Newsletter, 20-21.
• Roberts, J. E., Tonnsen, B. L., McCary, L. M., Caravella, K. E., & Shinkareva, S. V. (2016). Brief Report: Autism Symptoms in Infants with Fragile X Syndrome. Journal of Autism and Developmental Disorders, 42(12), 3830-3837. doi: 10.1007/s10803-016-2903-5
• Tonnsen, B. L., & Hahn, E. R. (2016). Middle School Students’ attitudes toward a peer with autism spectrum disorder: Effects of social acceptance and physical inclusion. Focus on Autism and Other Developmental Disabilities, 31(4), 262-274. doi: 10.1177/1088357614559213

2015

• Brazendale, A., Adlof, S., Klusek, J., & Roberts, J. E. (2015). Teaching reading to youth with fragile X syndrome: Should phonemic awareness and phonics instruction be used? Evidence Based Practice Briefs, 9, 47-61
• Klusek, J., Hunt, A. W., Mirrett, P. L., Hatton, D. D., Hooper, S. R., Roberts, J. E., & Bailey, D. B., Jr. (2015). Reading and phonological skills in boys with fragile X syndrome. Journal of Autism and Developmental Disorders, 45, 1699-1711. doi: 10.1111/jcpp.12267
• Randel, A., Sorensen, C., Schenkelberg, M., Grefer, M., Flory, K., & Beets, M. (2015). Camp PALS: An Innovative Summer Camp Program for Youth with Developmental Disabilities. Report on Emotional & Behavioral Disorders in Youth, 15(3), 57-64.
• Klusek, J., Roberts, J. E., & Losh, M. (2015). Cardiac autonomic regulation in autism and fragile X syndrome: A review. Psychological Bulletin, 141, 141-175. doi: 10.1037/a0038237
• Adlof, S., Klusek, J., Svetlana, S., Mounts, M., Hatton, D., & Roberts, J. E. (2015). Phonological awareness and reading in boys with fragile X syndrome.  Journal of Child Psychiatry and Psychology, 56, 30-39. doi: 10.1111/jcpp.12267
• Tonnsen, B. L., Grefer, M. L., Hatton, D. D. & Roberts, J. E. (2015). Developmental trajectories of attentional control in preschool males with fragile X syndrome. Research in Developmental Disabilities, 36, 62-71. doi: 10.1016/j.ridd.2014.09.015
• Kover, S. T., McCary, L. M., Ingram, A. M., Hatton, D. D., & Roberts, J. E. (2015). Language development in infants and toddlers with fragile X syndrome: change over time and the role of attention. American journal on intellectual and developmental disabilities, 120(2), 125-144. doi: 10.1352/1944-7558-120.2.125

2014

• Tonnsen, B. L., Cornish, K. M., Wheeler, A. C., & Roberts, J. E. (2014). Maternal predictors of anxiety risk in young males with fragile X.  American Journal of Medical Genetics, Part B: Neuropsychiatric Genetics, 165(5), 399-409. doi: 10.1002/ajmg.b.32244
• Roberts, J. E., Tonnsen, B. L., Robinson, M., McQuillin, S., & Hatton, D. D. (2014). Temperament factor structure in fragile X syndrome: The Child Behavior Questionnaire. Research in Developmental Disabilities, 35(2), 563-571. doi: 10.1016/j.ridd.2013.11.024
• Klusek, J., Losh, M., & Martin, G. (2014). Sex differences and within-family associations in the broad autism phenotype. Autism: International Journal of Research and Practice, 18(2), 106-116. doi: 10.1177/1362361312464529
• Klusek, J., Martin, G. E., & Losh, M. (2014). Consistency between research and clinical diagnoses of autism among boys and girls with fragile X syndrome. Journal of Intellectual Disabilities Research, 58(10), 940-952. doi: 10.1111/jir.12121
• Klusek, J.,  Martin, G. E., & Losh, M. (2014). A comparison of pragmatic language in boys with autism and fragile X syndrome. Journal of Speech, Language and Hearing Research, 57(5), 1692-1707. doi: 10.1044/2014_JSLHR-L-13-0064

 2013

• Klusek, J., Martin, G. E., & Losh, M. (2013). Physiological arousal in autism and fragile X syndrome: Group comparisons and links with pragmatic language.  American Journal on Intellectual and Developmental Disabilities, 118(6),475-495. doi: 10.1352/1944.7558-118.6.475
• McCary, L. M., Machlin, L., & Roberts, J. E. (2013). The development of adaptive behavior in toddlers and preschoolers with fragile x versus autism. International Journal of Developmental Disabilities, 59(2), 67-79. doi: 10.1179/2047387713Y.0000000016
• Roberts, J. E., Long, C., J., McCary, L. M., Quady, A. N., Rose, B. S., Widrick D. & Baranek, G. (2013). Cardiovascular and behavioral response to auditory stimuli in boys with fragile x syndrome. Journal of Pediatric Psychology, 38(3), 276-284. doi: 10.1093/jpepsy/jss114
• Tonnsen, B. L., Malone, P. S., Hatton, D. D., & Roberts, J. E. (2013). Early negative affect predicts anxiety, not autism, in preschool boys with fragile x syndrome. Journal of Abnormal Child Psychology, 41(2), 267-280. doi: 10.1007/s10802-012-9671-2
• Tonnsen, B. L., Shinkareva, S., Deal, S., Hatton, D. & Roberts, J. E. (in 2013). Biobehavioral indicators of social fear in young children with fragile X syndrome. American Journal of Intellectual and Developmental Disabilities, 118(6), 447-459. doi: 10.1352/1944-7558-118.6.447.
• Symons, F.J., Roberts, J. E. (2013). Biomarkers, behavior, and intellectual and developmental disabilities. American Journal on Intellectual and Developmental Disabilities, 118(6), 413-415. doi: 10.1352/1944-7558-118.6.413
• McCary, L. M., & Roberts, J. E. (2013).  Early identification of autism in fragile X syndrome: A Review. Journal of Intellectual Disability Research, 57(9), 803-814. doi: 10.1111/j.1365-2788.2012.01609.x

2012

• McCary, L. M.,  Grefer, M., Mounts, M., Robinson, A. N., Tonnsen, B., & Roberts, J. E. (2012). The importance of differential diagnosis in neurodevelopmental disorders: Implications for IDEIA. The School Psychologist, 66(2), 19-24. 
• Roberts, J. E., Hatton, D. D., Long, C. J, Anello, V., & Colombo, J. (2012). Visual attention and autistic behavior in infants with fragile x syndrome. Journal of Autism and Developmental Disorders, 42(6), 937-946. doi: 10.1007/s10803-011-1316-8
• Roberts, J. E., Tonnsen, B. L., Robinson, A. R., & Shrinkareva, S. (2012). Heart activity and autistic behavior in toddlers with fragile X syndrome. American Journal of Intellectual and Developmental Disabilities, 117(2), 90-102. doi: 10.1352/1944-7558-117.2.90
• Watson, L. R., Roberts, J. E., Baranek, G. T., Mandulak, K. C., & Dalton, J. C. (2012). Behavioral and physiological responses to child-directed speech of children with autism spectrum disorders or typical development. Journal of Autism and Developmental Disorders, 42(8), 1616-1629. doi: 10.1007/s10803-011-1401-z
• Tonnsen, B.L., Richards, J.E., Roberts, J.E. (2012). Experimental and parent-reported self-regulation in infants at high and low risk for autism. Developmental Medicine and Child Neurology, 54, 19. 

2011

• Bailey, D. B., Hazlett, H. C., Roberts, J. E., & Wheeler, A. C. (2011). Early development in fragile X syndrome: Implications for developmental screening. In D. Fidler (Ed.), International Review of Research in Mental Retardation: Early Development in Genetic Disorders Associated with Intellectual Disabilities, 40. San Diego: Elsevier.
• Roberts, J. E., Miranda, M., Boccia, M., Janes, H., Tonnsen, B. L., & Hatton, D. D. (2011). Treatment effects of stimulant medication in young boys with fragile X syndrome. Journal of Neurodevelopmental Disorders, 3(3), 175-184. doi: 10.1007/s11689-011-9085-4

2010

• Watson, L. R., Baranek, G. T., Roberts, J. E., David, F. J., & Perryman, T. Y. (2010). Behavioral and Physiological Responses to Child-Directed Speech as Predictors of Communication Outcomes in Children with Autism Spectrum Disorders. Journal of Speech, Language and Hearing Research, 53(4), 1052-1064. doi: 10.1044/1092-4388%282009/09-0096%29
• Wheeler, A. C., Hatton, D., Holloway, V. T., Sideris, J., Neebe, E. C., Roberts, J. E., & Reznick, J.S. (2010). Maternal responses to child frustration and requests for help in dyads with fragile X syndrome. Journal of Intellectual Disability Research, 54(6), 501-515. doi: 10.1111/j.1365-2788.2010.01269.x

2009

• Roberts, J. E., Bailey, D. B., Mankowski, J., Ford, A. F., Weisenfeld, L. H., Heath, T. M, & Golden, R. (2009). Mood and anxiety disorders in females with the FMR1 premutation. American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, 150B(1), 130-139. doi: 10.1002/ajmg.b.30786
• Roberts, J. E., Mankowski J. B., Sideris J., Goldman B. D., Hatton D. D,, Mirrett P. L, Baranek G.T., Reznick J.S., Long, A.C.J., Bailey D.B. Jr. (2009). Trajectories and predictors of the development of very young boys with fragile X syndrome. Journal of Pediatric Psychology, 34(8), 827-36. doi: 10.1093/jpepsy/jsn129
• Roberts, J. E., Clarke, M. A., Alcorn, K., Carter, J. C., Long, A. C., & Kaufmann, W. E. (2009). Autistic Behavior in Boys with Fragile X Syndrome: Social Approach and HPA-Axis Dysfunction. Journal of Neurodevelopmental Disorders, 1(4), 283-291. doi: 10.1007/s11689-009-9028-5

2008

• Roberts, J. E., Mazzocco, M. M. M., Murphy, M. M., & Hoehn-Saric, R. (2008). Arousal modulation in females with fragile X or Turner Syndrome. Journal of Autism and Developmental Disorders, 38, 20-27. doi: 10.1007/s10803-007-0356-6
• Bailey, D. B., Sideris, J., Roberts, J. E., & Hatton, D. D. (2008). Child and genetic variables associated with maternal adaptation to fragile X syndrome: A multidimensional analysis. American Journal of Medical Genetics, Part A, 146A(6), 720-729. doi: 10.1002/ajmg.a.32240