Leonard Abbeduto, Ph.D.
Journal Articles
2014 Benjamin DP, Mastergeorge AM, McDuffie AS, Kover ST, Hagerman RJ,
Abbeduto L. Effects of labeling and pointing on object gaze in boys with fragile X
syndrome: An eye-tracking study. Research in Developmental Disabilities, 35, 26582672.
2014 Channell M, Thurman AJ, Kover ST, Abbeduto L. Patterns of change in nonverbal
cognition in adolescents with Down syndrome. Research in Developmental
Disabilities, 35, 2933-2941.
2014 Doers ME, Musser M, Nichol R, Berndt E, Baker M, Weick JP, Gomez T, Zhang S-C,
Abbeduto L, Bhattacharyya A. Induced pluripotent stem cell derived forebrain
neurons from FXS individuals show defects in initial neurite outgrowth. Stem Cells and
Development, 23, 1777-1787.
2014 Hauser CT, Kover ST, Abbeduto L. Maternal well-being and child behavior in families
with fragile X syndrome. Research in Developmental Disabilities, 35, 2477-2486.
2014 Kover ST, Haebig E, McDuffie A, Abbeduto L. Sentence comprehension in boys with
autism spectrum disorder. American Journal of Speech Language Pathology, 23, 385394.
2014 Machalicek W, McDuffie A, Oakes A, Ma M, Thurman AJ, Rispoli MJ, Abbeduto L.
Examining the operant function of challenging behavior in young males with fragile X
syndrome: A summary of 12 cases. Research in Developmental Disabilities, 35, 16941704.
2014 Turkstra LS, Abbeduto L, Meulenbroek P. Social cognition in adolescent girls with
fragile X syndrome. American Journal on Intellectual and Developmental Disabilities,
119, 319-339.
2014 Abbeduto L, McDuffie A, Thurman AJ. The fragile X syndrome-autism comorbidity:
what do we really know? Frontiers in Genetics, October 5, 355. Epub only.
2015 Benjamin DP, McDuffie A, Thurman A, Kover ST, Mastergeorge A, Hagerman RJ,
Abbeduto L. Effect of speaker gaze on word learning in fragile X syndrome: A
comparison with nonsyndromic ASD. Journal of Speech, Language, and Hearing
Research, 58, 383-395.
2015 Oakes A, Ma M, McDuffie A, Machalicek W, Abbeduto L. Providing a parentimplemented language intervention to a young male with fragile X syndrome: Brief
report. Developmental Neurorehabilitation, 18, 65-68.
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2015 Thurman A, McDuffie A, Kover ST, Channell MM, Mastergeorge A, Hagerman RJ,
Abbeduto L. Use of emotional cues for lexical learning: A comparison of autism
spectrum disorder and fragile X syndrome. Journal of Autism and Developmental
Disorders, 45, 1042-1061.
Books
2014 Abbeduto L, Symons F (Eds.). Taking sides: Clashing views on controversial issues
in educational psychology, 7th edition. Guilford, CT: Dushkin/McGraw-Hill.
Abstracts and Presentations
2014 Abbeduto L, McDuffie A. (July). Understanding and Treating Language Problems in
Children and Adolescents with Fragile X Syndrome. Presentation at the biennial
International Conference of the National Fragile X Foundation. Cedar Grove, CA.
2014 Bullard L, Channel MM, McDuffie A, Abbeduto L. (July). Narrative Language
Competence 1: Story Completeness in Males with FXS. Presentation at the biennial
International Conference of the National Fragile X Foundation. Cedar Grove, CA.
2014 Summers S, McDuffie A, Abbeduto L. (July). Play Skill of Toddlers with Fragile X
Syndrome: Associations with Language Development. Poster presented at the
biennial International Conference of the National Fragile X Foundation. Cedar Grove,
CA.
2014 Chela M, Channel M, McDuffie A, Abbeduto L. (July). Narrative Language
Competence 2: Story Organization in Males with FXS. Presentation at the biennial
International Conference of the National Fragile X Foundation. Cedar Grove, CA.
2014 Tempero-Feigles R, Wong C, Channell M, McDuffie A, Abbeduto L. (July). Narrative
Language Competence 3: The Use of Narrative Evaluations by Males with FXS.
Presentation at the biennial International Conference of the National Fragile X
Foundation. Cedar Grove, CA.
2014 Benjamin D, Chela M, McDuffie A, Abbeduto L. (July). Use of Psychiatric Medications
in Young Males with FXS. Poster presented at the biennial International Conference of
the National Fragile X Foundation. Cedar Grove, CA.
2014 Thurman AT, Channell M, McDuffie A, Abbeduto L. (July). A Longitudinal
Examination of Expressive Language in Males and Females with Fragile X Syndrome.
Presentation at the biennial International Conference of the National Fragile X
Foundation. Cedar Grove, CA.
2014 McDuffie A, Abbeduto L. (July). Parent Implemented Early Language Intervention
Delivered by Distance Video Teleconferencing. Presentation at the biennial
International Conference of the National Fragile X Foundation. Cedar Grove, CA.
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2014 Abbeduto L. (July). Language Development in People with Intellectual Disabilities
and Outcome Measures for Clinical Trials. Presentation to Center for Genomic
Regulation/Institut de Recerca Hospital del Mar. Barcelona, Spain.
2014 Abbeduto L. (September). Understanding Variability in Language Development:
Implications for Assessment of Individuals with Intellectual Disabilities. Presentation at
the conference, Intellectual Disability and the Importance of Assessment, hosted by
the Jerome Lejune Foundation. Paris, France.
2014 Finestack L, Abbeduto L. (November). Conversational and narrative grammatical
abilities of adolescents and young adults with developmental disabilities. Presentation
at the annual meeting of the American Speech-Language-Hearing Association.
Orlando, FL.
2015 Abbeduto L. (January). Language Development in Fragile X Syndrome: Variation,
Mechanisms, and Treatment. Presentation at the Annual Autism Conference of
Association for Behavior Analysis International. Las Vegas, NV.
2015 Abbeduto L. (February). Autism as a Comorbid Condition in Fragile X Syndrome:
What Do We Really Know? Presentation in the Autism Affinity Group Lecture, Center
for Autism Research and Treatment, UCLA, Los Angeles, CA.
2015 Channell MM, McDuffie A, Chela M, Bullard L, Abbeduto L. (March). Story Grammar
Organization in Youth with Down Syndrome or Fragile X Syndrome. Poster presented
at the biennial meeting of the Society for Research in Child Development,
Philadelphia, PA.
2015 Abbeduto L. (April). Discussant. In L. Finestack (Chair), Different Approaches to
Better Understanding the Language Skills of Children with Developmental Disabilities.
Symposium presented at the annual Gatlinburg Conference on Research and Theory
in Intellectual and Developmental Disabilities, New Orleans, LA
2015 Bullard L, Nelson S, Castignetti N, Tempero-Feigles R, Mello M, McDuffie A,
Abbeduto L. (April). Parent-Implemented Spoken Language Intervention for Boys
with FXS: Effects of Clinician Coaching on Maternal Strategy Use. Poster presented at
the 48th Annual Gatlinburg Conference on Research and Theory in Intellectual and
Developmental Disabilities, New Orleans, LA.
2015 Castignetti N, Nelson S, Tempero-Feigles R, Bullard L, Mello M, McDuffie A,
Abbeduto L. (April). Parent-Implemented Spoken Language Intervention for Boys
with FXS: Effects on Number of Exemplars within Grammatical Categories. Poster
presented at the 48th Annual Gatlinburg Conference on Research and Theory in
Intellectual and Developmental Disabilities, New Orleans, LA.
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2015 Channell MM, McDuffie A, Bullard LM, Chela M K, Tempero-Feigles R, Abbeduto L.
(April). Narrative structure in adolescents with Down syndrome or fragile X syndrome.
In L. Finestack (Chair), Different Approaches to Better Understanding the Language
Skills of Children with Developmental Disabilities. Symposium presented at the annual
Gatlinburg Conference on Research and Theory in Intellectual and Developmental
Disabilities, New Orleans, LA.
2015 McDuffie A, Thurman A, Abbeduto L. (April). Expressive language sampling as an
outcome measure: Preliminary data. In N. Brady (Chair), New Developments in
Measuring Communication. Symposium presented at the 48th Annual Gatlinburg
Conference, New Orleans, LA.
2015 Nelson S, Bullard L, Tempero-Feigles R, Castignetti N, Mello M, McDuffie A,
Abbeduto L. (April). Parent-Implemented Spoken Language Intervention for Boys
with FXS: Effects on Generalized Maternal Strategy Use and Child Spoken Language.
Poster presented at the 48th Annual Gatlinburg Conference on Research and Theory
in Intellectual and Developmental Disabilities, New Orleans, LA.
2015 Thurman AJ, McDuffie A, Hagerman R, Abbeduto L. (April). Language skills of males
with fragile X syndrome or nonsyndromic autism spectrum disorder. In L. Wilde
(Chair), Delineating behavioral phenotypes of genetic disorders associated with
autism spectrum disorder. Symposium presented at the Gatlinburg Conference on
Research and Theory in Intellectual and Developmental Disabilities, New Orleans, LA.
2015 Nelson S, McDuffie A, Bullard L, Tempero-Feigles R, Abbeduto L. (June). ParentImplemented Spoken Language Intervention for Adolescent Boys with FXS: Effects on
Child’s Use of Narrative Inferences. Poster presentation at the Symposium on
Research in Child Language Disorders, Madison, WI.
2015 Abbeduto L, McDuffie A, Thurman AJ, Channell MM. (June). Measuring language
change in individuals with Down syndrome: Expressive language sampling. Invited
presentation at the International Conference of the Trisomy 21 Research Society:
Changing Paradigms in Down Syndrome. Paris, France.
Research Funding
PI/PD, Social-affective bases of word learning in fragile X syndrome and autism. R01
HD054764 3/8/08-2/28/15, approx. $3,000,000 (total costs).
Co-Investigator (F. Conners, University of Alabama, PI/PD). Cognitive precursors of
language impairment in Down syndrome. R01 HD055345 2/20/09-1/31/15, approximately
$3.0 million (total costs).
PI/PD, Language development in fragile X syndrome. National Institute of Child Health and
Human Development, R01 HD204356, 2/20/12-1/31/17, $2,600,000 (total costs).
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PI/PD, Expressive Language Sampling as an Outcome Measure. National Institute of Child
Health and Human Development, R01 HD074346, 3/1/13-2/28/2018, (approximately
$3,000,000 total costs).
PI/PD, MIND Institute Intellectual and Developmental Disabilities Research Center, National
Institute of Child Health and Human Development, U54 HD079125, 9/24/13-6/30/18,
$6,500,000 (total costs).
Community Service
Chair, NIH NICHD Division of Scientific review, Behavioral and Biobehavioral Study Section
Director, UC Davis MIND Institute
Editor, American Journal on Intellectual and Developmental Disabilities
Member, Biospecimen Repository Working Group
Member, Executive Committee, Gatlinburg Conference on Research and Theory in
Intellectual and Developmental Disabilities
Member, Genomics Working Group, UC Davis School of Medicine
Member, NIH NICHD Division of Scientific review, Behavioral and Biobehavioral study
section
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