Serious Science.

Seriously Fun People.


Lab Director

Tiffany Woynaroski, PhD, CCC-SLP

Assistant Professor in Hearing and Speech Sciences

BS, Psychology, Valparaiso University (2002)
MS, Speech-Language Pathology, Vanderbilt University (2009)
PhD, Hearing and Speech Science, Vanderbilt University (2014)

Tiffany received her PhD from Vanderbilt University’s Department of Hearing and Speech Sciences in December 2014 after an extensive clinical career working with children with autism spectrum disorder (ASD) and other intellectual and developmental disabilities (IDD) as an early interventionist/parent educator, speech language pathologist, and autism consultant. She has authored 33 published or in-press peer-reviewed articles, 2 book chapters, and 90 presentations at academic conferences.

Research Staff


Bahar Keçeli-Kaysili, PhD

Clinical/Translational Research Coordinator

Bahar completed her PhD in Special Education at Ankara University. Her research specializes in communication, language development and social interaction dynamics. She also studies educational interventions to promote communication and language, as well as developmental links between language and theory of mind in children with ASD.

Doctoral Students


Kacie Dunham, BA

Graduate Research Assistant, Neuroscience

Kacie is a second year PhD student in the Neuroscience Graduate Program at Vanderbilt University. She graduated with a bachelors in Neuroscience from Vanderbilt University in 2018.


Through her research, Kacie has demonstrated interest in differences in cognitive processes in developmental disorders, particularly differences in communication and memory, as well as the role that music plays on cognition.


Jacob Feldman, MS, CCC-SLP

Graduate Research Assistant, Hearing and Speech Sciences

Jacob is a fifth year PhD student in the Department of Hearing and Speech Sciences. He completed his bachelors in Communication Sciences and Disorders and Psychology at the Pennsylvania State University and his masters in Speech-Language Pathology at Vanderbilt University.

He is interested in early identification of autism spectrum disorder and how audiovisual multisensory integration may explain variance in core autism symptoms and higher level factors, such as language and literacy. He has been an author on 5 peer-reviewed publications, 1 clinical tool, and 44 conference presentations.


Zachary Williams, BS

Graduate Research Assistant, Medical Scientist Training Program

Zack is a first year graduate student in the Medical Scientist Training Program. He received his bachelors in Psychology from Yale University, where he was heavily involved in autism research at the Yale Child Study Center.


Zack is interested in the phenomenology of sensory abnormalities, specificially auditory processing, in ASD and other IDDs, particularly in adolescence and adulthood.

Masters Students


Sam Bordman, BPhil

Graduate Research Assistant, Master's in Speech-Language Pathology

Sam is a first year master's student in Speech-Language Pathology. She graduated from the University of Pittsburgh with a Bachelor of Philosophy in Communication Science in 2018. She is interested in all things infant and is particularly interested in language development in infants at high risk for autism and the impact of an autism diagnosis on medical care.


Jennifer Markfeld, BS

Graduate Research Assistant, Master's in Speech-Language Pathology

Jennifer is a first year master's student in Speech-Language Pathology. She graduated with a degree in Communication Sciences and Disorders from James Madison University in 2019. Jennifer’s research interests include caregiver-infant interaction, infant language development, and interventions designed to address risk factors that contribute to ASD and other neurodevelopmental disorders.


Evan Suzman, BS

Graduate Research Assistant, Master's Program in Biomedical Sciences

Evan is a first year master's student in the Biomedical Sciences Program. He graduated with degrees in Child Development and History from Vanderbilt University in 2019. Evan's research looks at links between sensory functioning and higher-order processes in infants with ASD.

Undergraduate Students


Peter Abdelmessih

Undergraduate Research Assistant

Peter is a junior majoring in Neuroscience. His research looks at neurophysiological correlates of sensorimotor and multisensory integration adults and children with ASD.


Claire Daly

Lead Undergraduate Research Assistant

Claire is a senior double majoring in Psychology and Spanish. Her research looks at communication and language development in infants and young children with ASD.


Varsha Garla

Undergraduate Research Assistant

Varsha is a junior majoring in Neuroscience. Her research involves the diagnosis of ASD in the third year of life.


Sophie Kaiser

Undergraduate Research Assistant

Sophie is a freshman pursuing degrees in Cognitive Studies and Medicine, Health, and Society with a minor in Spanish. Her research interests include language and communication development in infants and children with or at high risk for ASD.


Yupeng Liu

Lead Undergraduate Research Assistant

Yupeng is a senior majoring in Neuroscience. His research interests include the measurement and malleability of audiovisual multisensory integration in children with ASD.


Nisha Mailapur

Undergraduate Research Assistant

Nisha is a freshman pursuing a pre-medicine track with a major in Economics and a minor in Spanish. She is participating in the SyBBURE Searle Undergraduate Research Program. She is interested in how senses and perception impact behavior in autism and sensory disorders such as synesthesia.


Aine Muhumuza

Undergraduate Research Assistant

Aine is a senior majoring in neuroscience. Her research interests involve using electrophyisology to predict later development in infants at high-risk for ASD.


Grace Pulliam

Undergraduate Research Assistant

Grace is a sophomore majoring in neuroscience. Her research interests involve audiovisual integration in school-aged children with ASD.


Sweeya Raj

Lead Undergraduate Research Assistant

Sweeya is a senior majoring in neuroscience. Her research interests include sensory development of children with ASD and Down syndrome.

Affiliated Students


Pooja Santapuram, BA

Vanderbilt University School of Medicine

Pooja graduated from Vanderbilt with a major in Neuroscience in 2018. As a medical student at Vanderbilt, she continues to work in the lab to complete her honors thesis project looking at the link between attention to audiovisual speech and prelinguistic development in infants at high- and low-familial risk for ASD.