Hartley, Sigan L.

Alzheimer's disease associated with Down syndrome: a genetic form of dementia

Fortea, J., Zaman, S. H., Hartley, S., Rafii, M. S., Head, E., & Carmona-Iragui, M. (2021) · The Lancet Neurology

Down syndrome and intellectual disability researchDementia and Cognitive Impairment Research

Cited by 357

Sex Differences in Autism Spectrum Disorder: An Examination of Developmental Functioning, Autistic Symptoms, and Coexisting Behavior Problems in Toddlers

Hartley, S. L., & Sikora, D. M. (2009) · Journal of Autism and Developmental Disorders

Autism Spectrum Disorder ResearchChild Nutrition and Feeding Issues

Cited by 355

A review of the reliability and validity of Likert‐type scales for people with intellectual disability

Hartley, S. L., & MacLean, W. E. (2006) · Journal of Intellectual Disability Research

Psychometric Methodologies and TestingDown syndrome and intellectual disability research

Cited by 273

Outcome Measures for Clinical Trials in Down Syndrome

Esbensen, A. J., Hooper, S. R., Fidler, D., Hartley, S. L., Edgin, J., d'Ardhuy, X. L., Capone, G., Conners, F. A., Mervis, C. B., Abbeduto, L., et al. (2017) · American Journal on Intellectual and Developmental Disabilities

Down syndrome and intellectual disability researchHealth Education and Validation

Cited by 153

Maladaptive behaviors and risk factors among the genetic subtypes of Prader-Willi syndrome

Hartley, S. L., MacLean, W. E., Butler, M. G., Zarcone, J., & Thompson, T. (2005) · American Journal of Medical Genetics Part A

Genetic Syndromes and ImprintingWilliams Syndrome Research

Cited by 112

Further understanding the connection between Alzheimer's disease and Down syndrome

Snyder, H. M., Bain, L. J., Brickman, A. M., Carrillo, M. C., Esbensen, A. J., Espinosa, J. M., Fernandez, F., Fortea, J., Hartley, S. L., Head, E., et al. (2020) · Alzheimer's & Dementia

Down syndrome and intellectual disability researchDementia and Cognitive Impairment Research

Cited by 105

Characterizing the emergence of amyloid and tau burden in Down syndrome

Zammit, M. D., Betthauser, T. J., McVea, A. K., Laymon, C. M., Tudorascu, D. L., Johnson, S. C., Hartley, S. L., Converse, A. K., Minhas, D. S., Zaman, S. H., et al. (2024) · Alzheimer's & Dementia

Dementia and Cognitive Impairment ResearchAlzheimer's disease research and treatments

Cited by 60

Comparison of amyloid burden in individuals with Down syndrome versus autosomal dominant Alzheimer's disease: a cross-sectional study

Boerwinkle, A. H., Gordon, B. A., Wisch, J., Flores, S., Henson, R. L., Butt, O. H., McKay, N., Chen, C. D., Benzinger, T. L. S., Fagan, A. M., et al. (2023) · The Lancet Neurology

Alzheimer's disease research and treatmentsDementia and Cognitive Impairment Research

Cited by 55

Couple conflict in parents of children with versus without autism: Self-reported and observed findings

Hartley, S. L., Papp, L. M., Mihaila, I., Bussanich, P. M., Goetz, G., & Hickey, E. J. (2017) · Journal of Child and Family Studies

Family and Disability Support ResearchAttachment and Relationship Dynamics

Cited by 54

Daily Couple Experiences and Parent Affect in Families of Children with Versus Without Autism

Hartley, S. L., DaWalt, L. S., & Schultz, H. M. (2017) · Journal of Autism and Developmental Disorders

Family and Disability Support ResearchAttachment and Relationship Dynamics

Cited by 43

The Alzheimer's Biomarker Consortium–Down Syndrome (ABC‐DS): A 10‐year report

Handen, B. L., Mapstone, M., Hartley, S., Andrews, H., Christian, B., Lee, J. H., Tudorascu, D., Hom, C., Ances, B. M., Zaman, S., et al. (2025) · Alzheimer's & Dementia

Down syndrome and intellectual disability researchDementia and Cognitive Impairment Research

Cited by 29

Timeline to symptomatic Alzheimer's disease in people with Down syndrome as assessed by amyloid-PET and tau-PET: a longitudinal cohort study

Schworer, E. K., Zammit, M. D., Wang, J., Handen, B. L., Betthauser, T., Laymon, C. M., Tudorascu, D. L., Cohen, A. D., Zaman, S. H., Ances, B. M., et al. (2024) · The Lancet Neurology

Dementia and Cognitive Impairment ResearchDown syndrome and intellectual disability research

Cited by 29

Detecting Autism Spectrum Disorder in Children With Intellectual Disability: Which DSM-IV-TR Criteria Are Most Useful?

Hartley, S. L., & Sikora, D. M. (2010) · Focus on Autism and Other Developmental Disabilities

Autism Spectrum Disorder ResearchChild Nutrition and Feeding Issues

Cited by 24

Use and Benefit of Dyadic Coping for Couple Relationship Satisfaction in Parents of Children with Autism

Putney, J. M., Greenlee, J. L., & Hartley, S. L. (2021) · Family Process

Family and Disability Support ResearchAttachment and Relationship Dynamics

Cited by 20

Alzheimer's polygenic risk scores are associated with cognitive phenotypes in Down syndrome

Gorijala, P., Aslam, M. M., Dang, L. T., Xicota, L., Fernandez, M. V., Sung, Y. J., Fan, K., Feingold, E., Surace, E. I., Chhatwal, J. P., et al. (2024) · Alzheimer's & Dementia

Down syndrome and intellectual disability researchDementia and Cognitive Impairment Research

Cited by 13

Decoding brain structure to stage Alzheimer's disease pathology in Down syndrome

Kennedy, J. T., Wisch, J. K., Dincer, A., Roman, J., Gordon, B. A., Handen, B., Benzinger, T. L. S., Head, E., Mapstone, M., Christian, B. T., et al. (2025) · Alzheimer's & Dementia

Dementia and Cognitive Impairment ResearchDown syndrome and intellectual disability research

Cited by 7