Dr. Joel Hahn

Associate Professor

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Biography

Joel Hahn is an Associate Professor in the Department of Biological Sciences at the University of Southern California. His research focuses on systems neuroscience, emphasizing the structure and function of neuronal circuits. His main interests lie in the neuronal network architecture, particularly in hypothalamic circuits that regulate physiological and behavioral processes critical for survival and reproduction. Hahn's work explores various aspects of neuroanatomy and neuroinformatics, contributing significantly to our understanding of the neuroendocrine system and its motivations and emotions. He has numerous publications, including studies on the organization of the cerebral cortex and the network architecture of the hypothalamus. Hahn is affiliated with multiple research groups and initiatives, including the USC Neurobiology Section and collaborations with UCLA and the University of Sao Paulo. His contributions to neuroscience have advanced knowledge in neural networks and their implications for cognitive and motor systems.

Research Interests

Experience

Associate Professor

2018-08-01 — Present

University of Southern California • Los Angeles, CA

Teaching and conducting research in neuronal circuits, neuroanatomy, and systems neuroscience.

Requirements for University of Southern California

Master Program
Requirements
GPA Requirement
Required:3
TOEFL
Listening
Required:20
Reading
Required:20
Writing
Required:20
Speaking
Required:20
Total
Required:90
IELTS
Listening
Required:6
Reading
Required:6
Writing
Required:6
Speaking
Required:6
Overall
Required:6.5
GRE General
Prerequisites
Bachelor's degree in Engineering, Math, or Hard Science
Application Checklist
  • Online application
  • Official transcripts
  • Personal Statement
  • Resume/CV
  • Letters of Recommendation (not required for MS CS, but allowed)
Specialization Notes

GRE is NOT required for Master's applicants for 2025-2026.