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Christopher E. Niemczak AuD, PhD

Title(s)
Assistant Professor of Medicine

Additional Titles/Positions/Affiliations
Senior Scientist, Department of Medicine, Section of Hyperbaric Medicine
Quantitative Biomedical Sciences Faculty

Department(s)
Medicine

Education
Syracuse University
Au.D./Ph.D. in Auditory Neuroscience
Dissertation Title: Cortical auditory processing of informational masking effects by target-masker similarity and stimulus uncertainty

University of Vermont
B.S. Communication Sciences and Disorders

Programs
Quantitative Biomedical Sciences

Curriculum Vitae
Niemczak_C_CV_2025-08-06.pdf

Websites
https://sites.dartmouth.edu/smil/research/

Contact Information

1 Medical Center Dr
Space Medicine Innovations Lab
Lebanon NH 03766

Phone: (603) 646-5329
Email: christopher.e.niemczak@dartmouth.edu


Biography

Dr. Niemczak is a Scientist and Assistant Professor in Space Medicine Innovations Lab. He graduated from Syracuse University with his clinical doctorate in Audiology and PhD in auditory neuroscience in the cortical processing of speech perception in backgrounds noise. Dr. Niemczak is an early career researcher with the goal of developing an independent and externally funded research program focused on exploring auditory pathways to understand and assess clinically relevant populations, such as those with hearing loss, HIV, Alzheimer’s Disease, and COVID-19. In his free time, Chris enjoys snowboarding, fly fishing, and DIY projects around the house.


Selected Publications

 

Peripheral and central auditory impairment linked to heavy metal exposure in Nicaraguan children from artisanal mining communities.
Kachadoorian M, Lee T, Fitzgerald J, Geffert M, Rieke C, Clavier O, Fuente A, Gui J, Zhou J, Li S, Jackson B, Karagas M, Mojica K, Gonzalez-Quiroz M, Niemczak C, Buckey J, Saunders J
J Glob Health. 2026 Jul 17;16:04192. doi: 10.7189/jogh.16.04192. Epub 2026 Jul 17.
PMID: 42464958

Response times from gap detection threshold testing relate to cognitive processing speed in young adults.
Niemczak C, Ealer C, Froese K, Fellows A, Leigh S, Mirza S, Gui J, Magohe A, Massawe E, Musiek F, Buckey J
Neuroscience. 2026 Sep 11;611:251-260. doi: 10.1016/j.neuroscience.2026.07.010. Epub 2026 Jul 3.
PMID: 42398888

In Reference to Adjunctive Hyperbaric Oxygen Therapy or Intratympanic Steroids in Sudden Sensorineural Hearing Loss?
Ganga K, Niemczak C, Buckey J
Laryngoscope. 2026 Jun 7; doi: 10.1002/lary.70670. Epub 2026 Jun 7.
PMID: 42252517

Central auditory tests reveal deficits in HIV treatment.
Kambhampaty AK, Niemczak CE, Hill RA, Howe CG, Leigh SM, Lichtenstein J, Roth RM, Adhikari M, Zhang L, Fellows AM, Magohe A, Palumbo P, Gui J, Massawe ER, Buckey JC
Front Public Health. 2026;14:1751685. doi: 10.3389/fpubh.2026.1751685. Epub 2026 May 20.
PMID: 42245361

Different Predictors for Components of Spaceflight-Associated Neuro-Ocular Syndrome.
Mirza S, Lan M, Chen B, Niemczak CE, Buckey JC
JAMA Ophthalmol. 2026 Jun 1;144(6):561-563. doi: 10.1001/jamaophthalmol.2026.1054.
PMID: 42060285

Harnessing machine learning with auditory tests and demographic factors to forecast children's reading abilities in children living with and without HIV.
Joseph J, Niemczak C, Lichtenstein J, Magohe A, Leigh S, Zhang L, Massawe E, Gui J, Buckey JC
BioData Min. 2026 Mar 28;19(1) doi: 10.1186/s13040-026-00545-1. Epub 2026 Mar 28.
PMID: 41904517

Central auditory processing is altered after traumatic brain injury in Tanzanian adults.
Lichtenstein JD, Niemczak CE, Fellows A, Wood LJ, Masoud S, Rooney A, Adhikari M, Magohe A, Buckey JC
Front Neurosci. 2025;19:1720978. doi: 10.3389/fnins.2025.1720978. Epub 2025 Dec 12.
PMID: 41459565

Central auditory testing in young Tanzanian children: feasibility and relationship to cognition.
Ealer C, Niemczak CE, Lichtenstein J, Leigh S, Fellows A, Zhang Z, Rieke C, Kobrina A, Magohe A, Massawe ER, Buckey JC
Int J Audiol. 2026 Apr;65(4):464-475. doi: 10.1080/14992027.2025.2545441. Epub 2025 Aug 21.
PMID: 40839536

The data presented in Zhi et al. do not support the conclusion that HBOT leads to worse hearing improvement in sudden hearing loss.
Ganga K, Niemczak C, Buckey J
Am J Otolaryngol. 2025 Nov-Dec;46(6):104719. doi: 10.1016/j.amjoto.2025.104719. Epub 2025 Aug 5.
PMID: 40812078

Altered auditory brainstem responses are post-acute sequela of SARS-CoV-2 (PASC).
Niemczak C, Skoe E, Leigh S, Zhang L, Dotzenrod M, Kieley A, Stone S, Parsonnet J, Martin C, Ealer C, Clavier O, Gui J, Waszkiewicz A, Roth R, Buckey J
Sci Rep. 2025 Mar 18;15(1):9387. doi: 10.1038/s41598-025-93664-4. Epub 2025 Mar 18.
PMID: 40102496

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