Principal Investigator:
Dr. Amanda E. Guyer 
Chancellor’s Fellow
Professor | Dept. of Human Ecology
Chair | Human Development Graduate Group
Associate Director | Center for Mind & Brain
Education: PhD (Yale University), BA (Skidmore College)
267 Cousteau Pl., Room 196, Davis, California 95618
aeguyer@ucdavis.edu
530-297-4445
Human Development Profile
Guyer CV
Postdoctoral Scholars
Myles N Arrington
Postdoctoral Scholar
TEEN Lab (Guyer)
Education: Ph.D. (Pennsylvania State University), B.S. (University of Maryland)
mnarrington@ucdavis.edu
I joined the TEEN Lab as a postdoc at the Center for Mind and Brain in September 2024. Prior to coming to Davis, I was a graduate student at The Pennsylvania State University, University Park, in the developmental psychology Ph.D. program. At PSU, I was mentored by Dr. Suzy Scherf and Dr. Dawn Witherspoon. I attended undergrad at the University of Maryland, College Park, with a B.S. degree in psychology and a minor in neuroscience. I also was a summer intern at the University of Virginia’s School of Education in 2018. My research interests intersect around social health, internalizing symptoms, social information processing, and adolescent development. In particular, I hope to understand how adolescents’ social relationships help protect them from high levels of symptoms, and how social information processing is a tool that aids in this process. In my free time, I enjoy playing and watching basketball, hanging with friends and family, playing video games, and being active outdoors.
Yiming Qian
Postdoctoral Scholar
TEEN Lab (Guyer)
Education: Ph.D. (Pennsylvania State University), M.S.Ed (Indiana University Bloomington), B.S. (Fudan University)
ymqian@ucdavis.edu
I received dual bachelor’s degrees in Psychology and Accounting from Fudan University, an M.S.Ed. in Educational Psychology from Indiana University Bloomington, and a Ph.D. in Developmental Psychology from The Pennsylvania State University. I am currently a postdoctoral scholar at the University of California, Davis, working with Dr. Amanda E. Guyer.
My research centers on developmental processes, with a particular focus on visual and neural development. I am also interested in sex differences, brain–behavior associations, atypical vision in mental disorders, and the sociocognitive outcomes of early life stress. My current project investigates how sex and pubertal development influence brain maturation during adolescence.
Graduate Student
Brandon Hayes
Ph.D. Student
TEEN Lab (Gu
yer)
Human Development Graduate Group
UC Davis Center for Mind and Brain
Education: B.A. (Rice University)
bkhayes@ucdavis.edu
I received a B.A. degree in Psychological Sciences and Cognitive Sciences at Rice University. Prior to joining the lab, I worked as a research scientist in behavioral psychiatry at Baylor College of Medicine in Houston, TX. My research interests focus on disruptions to stress processing mechanisms and the subsequent changes in brain regions rich in glucocorticoid receptors. More specifically, I aim to understand how varied experiences with chronic stressors, such as socioeconomic stress, shape developmental trajectories of cortisol secretion and neurobiological systems during adolescence. In my free time, I enjoy spending time outdoors, trying new local coffee shops and bakeries, and playing board games.
Research Assistant
Jinghuan (Judy) Xiong
Research Assistant
TEEN Lab (Guyer)
Education: B.S. (UC Davis)
jhxiong@ucdavis.edu
I graduated from UC Davis in Spring 2025 with a B.S. in Psychology and Human Development and minors in Statistics and Neuroscience. I’m currently a research assistant at the TEEN lab. My research interest focuses on the risk factors that influence children’s socioemotional and brain development, and the mechanisms underlying them. I’m also interested in the effects of early-life adversity and factors that can buffer children from the negative effects of early experience and enhance their resilience. In my free time, I enjoy reading, playing the piano, and picking up new hobbies.