Members

Principal Investigator

Jose Rodríguez-Romaguera, PhD

Dr. Jose Rodríguez-Romaguera received his PhD in Psychology (Behavioral Neuroscience) from the University of Puerto Rico in Rio Piedras, where he worked with Dr. Gregory Quirk studying the neural circuits of fear and avoidance learning. He then completed his postdoctoral training with Dr. Garret Stuber at UNC Chapel Hill where he studied the neural circuits of arousal and motivation. Dr. Rodríguez-Romaguera is currently a principal investigator in the Department of Psychiatry, the Department of Cell Biology and Physiology, the Neuroscience Center, and the Carolina Institute for Developmental Disorders at UNC Chapel Hill. He also Co-Directs the Carolina Stress Initiative and is the Assistant Director of the Intellectual and Developmental Disorders Research Center.

Email: jose_rodriguezromaguera@med.unc.edu

Key Collaborators

Nicolas Pégard, PhD

Dr. Nicolas Pégard is a Principal Investigator in the Department of Applied Physical Sciences in the College of Arts and Science. He also Directs the Neuroscience Technology Development Core of the Carolina Stress Initiative. His group collaborates with the Rodriguez-Romaguera Lab on a daily basis to create next-generation tools for the field of systems neuroscience. Dr. Rodríguez-Romaguera and Dr. Pégard co-advise multiple trainees and mentor them in both the engineering and application of neuroscience tools to dissect the neural circuits of arousal and motivation.

Email: pegard@unc.edu

Rebecca Grzadzinski, PhD

Dr. Rebecca Grzadzinski is a Principal Investigator in the Department of Psychiatry and at the Carolina Institute for Developmental Disorders at UNC Chapel Hill. Her group collaborates with the Rodriguez-Romaguera Lab on a daily basis to develop behavioral experiments to understand the dynamics of social arousal in infants with developmental disorders. Dr. Rodríguez-Romaguera and Dr. Grzadzinski co-advise multiple trainees and mentor them in both the psychometrics and the application of arousal biomarkers to understand social arousal and motivation.

Email: rebecca_grzadzinski@med.unc.edu

Postdoctoral Fellows

Antonio Florido, MSc, PhD

Dr. Florido obtained his master's degree in Mental Health at Universidad de Almería and his doctorate in Neuroscience at the Universitat Autònoma de Barcelona under the mentorship of Dr. Raul Andero. During his graduate work, he studied sex differences in fear-memory mechanisms in rodents and humans. Currently, Antonio's interests are in overcoming the knowledge gap in pathophysiological mechanisms of stress-related disorders in women. (UNC CPPFD & Marie Curie Postdoctoral Fellowship)

Email: aflorido@email.unc.edu

Graduate Students

Maria M. Ortiz-Juza, BS

Maria Magdalena Ortiz-Juza graduated from San Francisco State University with a degree in Biology with a concentration in Physiology and minor in Chemistry. Following graduation, Maria worked as a post-baccalaureate with Dr. Khaled Moussawi at the National Institute on Drug Abuse. There, she validated and developed a fentanyl vapor self-administration model in mice to study opioid addiction. Currently, Maria is a PhD student in the Neuroscience Curriculum and is advised by Dr. Jose Rodriguez-Romaguera and Dr. Nicolas Pégard. For her graduate training, Maria hopes to dissect the precise circuitry involved in social behavior and motivation to understand dysfunctions that occur in anxiety and addiction. (NSF-GRFP Fellow & HHMI Gilliam Fellow)

Email: mariamag@email.unc.edu

Noah Miller, BS

Noah graduated from UNC-Chapel Hill with a B.S. in Psychology and B.A. in Biology. During his undergraduate studies, Noah worked in the lab of Garret Stuber, studying the neural circuitry driving motivated social behaviors in mice. After graduation, Noah worked as a Research Technician in Ben Philpot's lab, studying the molecular changes associated with the epileptic phenotype of Angelman Syndrome model mice. He is currently co-advised by Dr. Jose Rodriguez-Romaguera and Dr. Nicolas Pegard. As a graduate student in the lab, Noah is interested in investigating how the brain functions to encode arousal responses and motivated behaviors at both the single-cell level and across brain circuits using multidisciplinary methodology. (NRSA T32 & F32)

Email: nmill12@email.unc.edu

Jovan Tormes-Vaquerano, BS

Jovan Tormes-Vaquerano graduated from the University of Massachusetts Boston with a B.S in electrical engineering. As an undergraduate student, Jovan interned in the lab of Dr. Max Prigozhin at Harvard University where he studied the fluid dynamics and heat transfer of vitrification of cyro-EM samples. Prior to graduation, Jovan also interned in the labs of Dr. Eric Taylor at the University of Iowa and Dr. Carl Novina at the Dana-Farber Cancer Institute where he investigated different molecular interactions. Jovan is currently a 1st year PhD student in the Department of Applied Physical Sciences, under the co-mentorship of Dr. Nicolas Pégard and Dr. Jose Rodriguez-Romaguera. During his doctoral training, Jovan is interested in developing novel optical instruments and computer-generated holography techniques capable of interfacing with 3-dimensional neuronal structures deep in the brain.

Email: jovantv@email.unc.edu

Ray Carpenter, BS

Ray Carpenter graduated from the University of North Carolina at Chapel Hill with a B.S. in Economics and a minor in Data Science. As an undergraduate Ray worked on multiple population wide health panel studies looking at factors that affected cognition and aging. He also worked for the department of Statistics and Operations Research where he studied how the firing rates of single neurons in mice can be used to infer their visual stimulus with Dr. Vladas Pipiras. Ray is a 1st year PhD student in the Department of Applied Physical Science, under the co-mentorship of Dr. Nicolas Pégard and Dr. Jose Rodriguez-Romaguera. During his doctoral training, Ray is interested in building models that causally connect neural signal data with specific behavioral functions, external stimuli, and mental states.

Email: rcarpenter@ad.unc.edu

Sabrina Pires, BS

Sabrina Pires graduated from Emmanuel College in Boston with a degree in Neuroscience and Biology and a minor in Psychology. During her undergraduate years, she participated in three distinct research experiences. She first worked with her undergraduate advisor, Dr. Elizabeth Crofton, to establish an environmental enrichment paradigm for studying alcohol use disorder. She then joined Dr. Carlos Ponce’s lab at Harvard Medical School, where she investigated how neural encoding shapes natural viewing behavior. Before entering graduate school, she took over a clinical trial using non-invasive brain stimulation in stroke patients with Dr. Lorella Battelli at Beth Israel Deaconess Medical Center. Currently, Sabrina is a PhD student in the Neuroscience Curriculum, co-mentored by Dr. Jose Rodriguez-Romaguera and Dr. Nicolas Pégard. For her graduate training, she aims to identify and reverse maladaptive circuit changes resulting from repeated social fear exposures to better understand complex PTSD

Email: sabpires@ad.unc.edu

Undergraduate Students

Ayank Maiti

Ayank is currently a freshman majoring in Neuroscience. He is particularly interested in neuroscience research that involves identifying specific circuitry responsible for mental disorders like anxiety and depression. Outside of academics, Ayank loves staying active by going to the gym, running, and playing sports.

Email: ayank@unc.edu

Research Support and Staff

Krisha Mehta, BS

Laboratory Manager. Krisha graduated with a B.S. in Neuroscience from Dickinson College, PA, and joined our group in February 2024. During her time at Dickinson, she conducted research on sensitization to methamphetamine in mice in the lab of Anthony Rauhut, Ph.D. Her responsibilities include serving as the laboratory animal coordinator, increasing laboratory efficiency, and miscellaneous administrative tasks. Krisha also supports ongoing projects in the lab with histology, imaging, behavioral experiments, and data analysis. She hopes to pursue a graduate degree in Neuroscience in the future and is interested in dissecting the neural circuitry of psychiatric and stress-related disorders like anxiety.

Email: krisha_mehta@med.unc.edu

Hannah Potthoff, BS

Research Support. Hannah graduated with a B.S in Animal Science from North Carolina State University, and joined our group in July of 2024. During her time at NC State, Hannah was on the pre-vet track, working at veterinary clinics to gain experience with various animal species in both large and small animal medicine. Her responsibilities in the lab include working together with IACUC and DCM to care for our lab mice, performing various administrative tasks, and assisting with ongoing lab projects as needed. Her future plans are to go to vet school and pursue her DVM degree with a focus in mixed animal practice.

Email: hlpottho@email.unc.edu

Isabel Castro-Rivera, BS

Research Support. Isabel graduated with a B.S. in Environmental Sciences from the University of Puerto Rico- Rio Piedras (UPRRP) and joined our group in August 2024. While at UPRRP, she researched the effects of emerging contaminants on the nervous system and behavior of freshwater crustaceans in the lab of Maria Sosa Llorens, Ph.D. Since joining the Rod-Roma lab, her responsibilities included facilitating administrative tasks while supporting ongoing lab projects, such as histology, imaging, behavioral experiments, and data analysis. For career goals, she wants to pursue a graduate degree in neuroscience. With a passion for environmental neuroscience, she is interested in seeing how ecological stressors affect behavioral and neural circuits in the different stages of the estrogen cycle in female mice.

Email: iscr@unc.edu

Kameron Thomas, BS

Laboratory Manager. Kam is a senior majoring in Computer Science and minoring in Applied Science and studio art. He initiated his career at the Pegard Laboratory as a Research Assistant in 2024, where he has since been instrumental in the design of custom optical devices tailored for neuroscience research. His responsibilities include enhancing laboratory capabilities through dedicated project support and pioneering tool development. Kam also facilitates interactions with external vendors and collaborators to ensure smooth and efficient laboratory operations.

Email: kamthoma@email.unc.edu

Kattia Mata, BS

Research Technician. Kattia graduated with a B.S. in Neuroscience from UNC-Chapel Hill in May 2022. While at UNC-Chapel Hill, she contributed to both wet lab and clinical neuroscience research, investigating brain development and neural circuits involved in neurodevelopmental disorders. In her current role, she supports the team with administrative tasks, as well as administering behavioral assessments to infants. She hopes to pursue a graduate degree in psychology, with a goal of reducing disparities in clinical assessments and improving learning and functional outcomes for children.

Email: kattia_mata@med.unc.edu

Lab Alumni

Rizk A. Alghorazi, BS

(Research Technician in the lab from 2019-2021)Now a medical student at UNC School of Medicine.

Randall Ung, MD, PhD

(Post-doc in the lab from 2019-2021)Now a resident at University of Pennsylvania.

Rubén García-Reyes, BA

(Post-Baccalaureate Scholar in the lab from 2020-2021)Now a graduate student at Washington University in St. Louis.

Kattia Mata

(Undergraduate Research Assistant in the lab in 2021)Now a Research Assistant with my colleague/collaborator Dr. Rebecca Grzadzinski.

Hannah Baker

(Undergraduate Research Assistant in the lab in 2022)

Carla M. Rivera-Pacheco, BS

(Post-Baccalaureate Scholar in the lab from 2022-2023)Now a graduate student at University of Texas Southwestern.

Samir Patel, BS

(Undergraduate Research Assistant and Research Technician in the lab from 2021-2023)Now a medical student at Campbell University School of Osteopathic Medicine.

Joshua Rutsohn, DrPH

(Post Doc in the lab from 2023-2024)

Ayden Ring, BA

(Research Technician in the lab from 2021-2023)Now a Teaching Assistant at the Expedition School

Sophia Hegel, BS

(Undergraduate Assistant in the lab from 2022-2024)Now an NIH IRTA Baccalaureate Fellow

Kisha Young

(Administrative Support in the lab from 2022-2024)

Micah Baldonado, BS

(Undergraduate Assistant in the lab from 2023-2024)Now a Masters Student at Carnegie Mellon University

Kayal Udaiyar, BS

(Undergraduate Assistant in the lab from 2022-2024)

Geronimo Velazquez-Hernandez, PhD

(Postdoctoral Researcher in the lab from 2021-2024)

Vincent R. Curtis, PhD

(Graduate student in the lab from 2020-2024)

Ellora (Ellie) McTaggart, BS

(Undergraduate Research Assistant and Lab Manager in the lab from 2022-2024)

Sarah Lowe

(Undergraduate Research Assistant from 2023-2024)

Changjia Cai, MS, PhD

(Graduate student in the lab from 2022-2024)

Jose Rios, BS

(Research Technician in the lab from 2023-2025)

If interested in joining us, please see the Join section for more details.

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