Research Interests: How does the nervous system control species-typical behavior and how do hormones influence neural physiology to modify behavior? Our laboratory addresses these questions by studying the neuroendocrine control of sexually dimorphic communication behavior in weakly electric fish.


  • Weakly electric fish

Current research in our laboratory focuses on five main questions:

  • How does the nervous system control rhythmic behavior?
  • How do hormones modify the nervous system to produce sex differences in behavior?
  • How has the nervous system evolved to produce species diversity in behavior?
  • What mechanisms underlie species diversity in sexual dimorphism of behavior?
  • What mechanisms cause species and sex differences in more complex electrocommunication signals?

Research areas:

  • Behavior
  • Evolution


  • Evolution of electrocommunication signals
  • Functions of electrocommunication signals
  • Evolution of sex differences in signals
  • Neural and hormonal mechanisms underlying species and sex differences
  • Cellular mechanisms of motor pattern generation
  • Neuroendocrine modulation of signal function and perception across social environments
  • Electric Fish Signal Archive

Research Interests:

  • neural and hormonal control of sexually dimorphic behavior; evolution of communication signals

Subject Area

  • Biology
Molecular Biology, Biological Science, Animal Science, Neuroscience
PhD, University of Washington, 1996
BS, Cornell University, 1989