Graduate Students

Claire Kaiser
[email protected]


Graduated in 2017 with a BS degree in Biomedical Engineering from the University of Rochester. Her research investigates image-guided neuromodulation to treat chronic inflammation. Claire is currently working on a project targeting the spleen using ultrasound and other modulation techniques with the goal of reducing the severity of rheumatoid arthritis inflammation. She is researching in collaboration with Daniel Zachs, Medtronic, DARPA, and Dr. Bryce Binstadt's lab in the University of Minnesota's Center for Immunology.

Abby Heiller
[email protected] 


Graduated in 2016 with a BS degree in Biomedical Engineering from Milwaukee School of Engineering. Her research is focused on modeling and developing auditory devices. She works on a project to determine the potential percepts of a novel Auditory Nerve Implant through computational modeling. Her work also focuses on using multimodal stimulation to induce neural plasticity in the auditory system.

Inderbir Sondh
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Graduated in 2017 with a BS degree in Bioengineering from the University of Pittsburgh. His research involves using multimodal stimulation strategies to induce changes in neural plasticity of brain regions in the auditory pathway (primary auditory cortex and inferior colliculus). His goal is to transition this work into a novel medical technology for selective hearing enhancement and integrate into existing assistive hearing devices. He is also interested in ultrasound neuromodulation of the immune system and ultrasound-based hearing.

Kevin Jiang
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Graduate in 2018 with a BSE in biomedical engineering from the University of Michigan. He designed curriculum as educational staff for the University of Michigan from 2018 to 2021. His research focuses on applying multimodal stimulation to generate neural plasticity and enhance hearing.

Dzifa Kwaku
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Graduated in 2020 with a master's degree in Biomedical Engineering from Arizona State University. She completed her BSE in Biomedical Engineering from Kwame Nkrumah University of Science and Technology, Ghana. Dzifa’s research focuses on developing an ultrasound powered device to modulate organs for the treatment of chronic cardiometabolic or inflammatory diseases. This project is in collaboration with Dr. Matthew Johnson’s lab in University of Minnesota.

Maryam Zebarjadi
[email protected]


Maryam is a PhD student in the Electrical Engineering department, at the University of Minnesota. She graduated with a MS in Electrical Engineering from the University of Tehran. Prior to joining the Lim Lab, Maryam worked in the area of Signal Processing and Machine Learning at the Information Theory and Coding Lab at the University of Tehran. Her research interests lie in the field of biomedical signal and image processing, data analysis, machine learning and deep learning.  She is currently researching spleen detection and segmentation in ultrasound images by applying deep learning algorithms.

Joellyn (JoJo) Speredelozzi
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Joellyn Speredelozzi
JoJo graduated in 2023 with a BS in Biomedical Engineering, a BA in Biology, and a BA in Italian from the University of Rhode Island. Her research focuses on the effect of ultrasound stimulation on auditory processing. 

Yezihalem Mesfin
[email protected]


Graduated in 2008 with a BS in Electrical Engineering from University of Minnesota. He is currently working full time at Starkey Hearing Technologies in Eden Prairie, Minnesota as a Research Engineer. His research in this lab focuses on applying neural beamforming (mSync) neuromodulation techniques for treating tinnitus in human subjects. Future research will explore incorporation of magnetic or ultrasound stimulation and integrative healing techniques into the mSync paradigm.