Dr. Li Feng Jiang Xie

Assistant Professor

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Biography

Li-Feng Jiang-Xie is an Assistant Professor in the Neuroscience Graduate Group at the University of Pennsylvania. He completed his Bachelor’s degree in Psychology and his Master’s in Brain Mind Sciences at National Taiwan University, followed by a PhD in Neurobiology from Duke University. His research specializes in elucidating the functions of sleep, particularly focusing on the self-cleansing brain hypothesis. Jiang-Xie's lab integrates a variety of experimental and computational techniques, including electrophysiology, two-photon imaging, and artificial intelligence, to explore the mechanisms through which sleep maintains metabolic homeostasis in the brain and its implications for neurodegenerative disorders. His recent work has unveiled significant insights into how neuronal activity during wakefulness drives the need for sleep and how sleep functions to clear metabolic waste. Jiang-Xie is pursuing innovative research directions, such as the dynamics of interstitial fluid during different brain states and the neural circuits responsible for fluid perfusion and molecular clearance.

Research Interests

Requirements for University of Pennsylvania

Doctorate Program
Requirements
GPA Requirement
Required:3.6
GRE General
Verbal
Required:162
Quantitative
Required:162
Overall
Required:162
GMAT
Total Score
Required:728
Overall
Required:728
TOEFL
Total
Required:115
Prerequisites
Bachelor's degree or equivalent Strong quantitative background
Application Checklist
  • Academic Transcripts
  • Letters of Recommendation (2-3)
  • Resume/CV
  • Statement of Purpose
  • Essays
Specialization Notes

Wharton Doctoral programs cover fields like Finance, Marketing, Management, and Operations, Information and Decisions.