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Thornton B. Alexander Mason, MD, PhD, MSCE

Attending Physician

Assistant Professor, Perelman School of Medicine at the University of Pennsylvania


1995 - 2000, NIH Neuroscience Academic Development Award Scholar, Columbia University

1990, Sigma Zeta Honorary Science Society

1990, Phi Kappa Phi

1990, Alpha Omega Alpha

1988, Medical Society of Virginia Scholarship

1987, Southern Medical Association Scholarship

1986 - 90, Florence Smith Medical Scholarship, Norfolk Foundation

1983 - 86, William C. Folkes Scholarship

1983 - 86, National Two-Ten Foundation Scholarship

1982 - 86, Craddock-Terry Foundation Scholarship

1982 - 86, Curriculum One Honors Program




Mason, T.B.A. Genetics of parasomnias. Pack, A.I., ed. Sleep Medicine Clinics 6: 229- 236, 2011.

Editorial and Academic Positions


Reviewer, Sleep 2003-present
Reviewer, European Journal of Pediatric Neurology 2006-present

Academic and Institutional Committees:

2005 -   Fellowship Committee, Division of Sleep Medicine, University of Pennsylvania

9 South (CHOP Main Hospital) Neurology Medical Director, 9 South Patient Safety Officer, Co-chair 9 South Unit Partners Leadership Committee




1993 -   American Academy of Neurology
1994 -   Child Neurology Society 1996 -   American Academy of Pediatrics (Fellow) 2000 -   Sleep Research Society 2006 -   American Academy of Sleep Medicine

Original Papers


DeScipio C, Conlin L, Rosenfeld J, Tepperberg J, Pasion R, Patel A, McDonald MT, Aradhya S, Ho D, Goldstein J, McGuire M, Mulchandani S, Medne L, Rupps R, Serrano AH, Thorland EC, Tsai AC, Hilhorst-Hofstee Y, Ruivenkamp CA, Van Esch H, Addor MC, Martinet D, Mason TB, Clark D, Spinner NB, Krantz ID. Subtelomeric deletion of chromosome 10p15.3: clinical findings and molecular cytogenetic characterization. Am J Med Genet A. 2012 Sep;158A(9):2152-61. doi: 10.1002/ajmg.a.35574. Epub 2012 Jul 27. PubMed PMID: 22847950; PubMed Central PMCID: PMC3429713.

Rogers VE, Gallagher PR, Marcus CL, Ohene-Frempong K, Traylor JT, Mason TB. Capturing PLMS and their variability in children with sickle cell disease: does ankle activity monitoring measure up to polysomnography? Sleep Med. 2012 Sep;13(8):1013-20. doi: 10.1016/j.sleep.2012.06.016. Epub 2012 Jul 25. PubMed PMID: 22841030.

Caboot JB, Jawad AF, McDonough JM, Bowdre CY, Arens R, Marcus CL, Mason TB, Smith-Whitley K, Ohene-Frempong K, Allen JL. Non-invasive measurements of carboxyhemoglobin and methemoglobin in children with sickle cell disease. Pediatr Pulmonol. 2012 Aug;47(8):808-15. doi: 10.1002/ppul.22504. Epub 2012 Feb 10. PubMed PMID: 22328189; PubMed Central PMCID: PMC3368100.

Strauss T, Sin S, Marcus CL, Mason TB, McDonough JM, Allen JL, Caboot JB, Bowdre CY, Jawad AF, Smith-Whitley K, Ohene-Frempong K, Pack AI, Arens R. Upper airway lymphoid tissue size in children with sickle cell disease. Chest. 2012 Jul;142(1):94-100. doi: 10.1378/chest.11-2013. PubMed PMID: 22241762; PubMed Central PMCID: PMC3419377.


Mason TB, Arens R, Sharman J, Bintliff-Janisak B, Schultz B, Walters AS, Cater JR, Kaplan P, Pack AI. Sleep in children with Williams Syndrome. Sleep Med. 2011 Oct;12(9):892-7. doi: 10.1016/j.sleep.2011.05.003. Epub 2011 Sep 21. PubMed PMID: 21940205; PubMed Central PMCID: PMC3210863.

Rogers VE, Marcus CL, Jawad AF, Smith-Whitley K, Ohene-Frempong K, Bowdre C, Allen J, Arens R, Mason TB. Periodic limb movements and disrupted sleep in children with sickle cell disease. Sleep. 2011 Jul 1;34(7):899-908. doi: 10.5665/SLEEP.1124. Erratum in: Sleep. 2012 Jun;35(6):725. PubMed PMID: 21731140; PubMed Central PMCID: PMC3119832.

Lam JC, Mahone EM, Mason TB, Scharf SM. Defining the roles of actigraphy and parent logs for assessing sleep variables in preschool children. Behav Sleep Med. 2011;9(3):184-93. doi: 10.1080/15402002.2011.583906. PubMed PMID: 21722013; PubMed Central PMCID: PMC3206727.

Huang J, Pinto SJ, Allen JL, Arens R, Bowdre CY, Jawad AF, Mason TB 2nd, Ohene-Frempong K, Smith-Whitley K, Marcus CL. Upper airway genioglossal activity in children with sickle cell disease. Sleep. 2011 Jun 1;34(6):773-8. doi: 10.5665/SLEEP.1046. PubMed PMID: 21629365; PubMed Central PMCID: PMC3099498.

Das S, Mindell J, Millet GC, Ofer D, Beck SE, Mason TB, Brooks LJ, Traylor J, Marcus CL. Pediatric polysomnography: the patient and family perspective. J Clin Sleep Med. 2011 Feb 15;7(1):81-7. PubMed PMID: 21344042; PubMed Central PMCID: PMC3041616.

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