Horacio G. Rotstein

Contact Info

Title: Professor
Email: horacio.g.rotstein@njit.edu
Office: CKB 420D 4th floor
Hours: By Appointment . Please use ext. 8460 (office) if needed
Phone: 973-596-8460
Dept: Biological Sciences
Webpage: http://web.njit.edu/~horacio

Academic Interests: mathematical biology, computational neuroscience, dynamical systems

About Me

The research of Horacio G. Rotstein focuses mainly on the study of the biophysical and dynamic mechanisms underlying the generation of rhythmic oscillatory activity in the brain, particularly in the hippocampus and entorhinal cortex. Rhythmic oscillations at theta (8 - 12 Hz) and gamma (30 - 80 Hz) frequencies in these areas of the brain have been correlated with various forms of learning and memory. In addition, alteration in particular sorts of brain rhythmic oscillations have been shown to correlate with the existence and progression of a variety of neuropsychiatric conditions, including schizophrenia and dementia. Rhythms differ not only in their frequency range, but also in the underlying biophysical mechanisms by which they are generated. These mechanisms usually vary in different brain areas, and may operate at a single cell level or may involve the coherent activity of many cells and cell types in a network. The primary goal of my research is to uncover and understand the underlying biophysical and dynamic principles that govern the generation of rhythmic activity in the brain. As secondary goals I hope to understand the functional implications for brain functioning of the previous results, the relation between disruption of rhythmic activity and diseases of the nervous system, and the effects that changes at a subcellular level have on rhythms observed at the single cell and network levels.

Education

  • PhD, Applied Mathematics, TECHNION - Israel Institute of Technology (1998).
  • MSc, Applied Mathematics, TECHNION - Israel Institute of Technology (1994).
  • BSc, Chemistry, Universidad Nacional del Sur, Argentina (1989).

Vitae

Website

http://web.njit.edu/~horacio

Research Interests

  • Mathematical biology
  • Computational neuroscience
  • Pattern formation in chemical and biological systems: Oscillatory chemical reactions and evolution of fronts
  • Dynamical Systems

Selected Publications

  • H. G. Rotstein, T. Oppermann, J. A. White, N. Kopell (2006). The dynamic structure underlying subthreshold oscillatory activity and the onset of spikes in a model of medial entorhinal cortex stellate cells. To be published in the J. Comp. Neurosci.
  • D. D. Pervouchine, T. I. Netoff, H. G. Rotstein, J. A. White, M. O. Cunningham, M. A. Whittington, N. Kopell (2006). Low-dimensional maps encoding dynamics in the entorhinal cortex and the hippocampus. Neural Computation 18:2617-2650.
  • H. G. Rotstein, R. Kuske (2006). Localized and asynchronous patterns via canards in coupled calcium oscillators. Physica D. 215:46-61.
  • H. G. Rotstein, D. D. Pervouchine, C. D. Acker, M. J. Gillies, J. A. White, E. H. Buhl, M. A. Whittington, N. Kopell (2005). Slow and fast inhibition and an h-current interact to create a theta rhythm in a model of CA1 interneuron network. J. Neurophysiol. 94:1509-1518.
  • T. Gloveli, T. Dugladze, H. G. Rotstein, R. D. Traub, H. Monyer, U. Heinemann, M. Whittington, N. Kopell (2005). Orthogonal arrangement of rhythm-generating microcircuits in the hippocampus. PNAS 102:13295-13300.
  • H. G. Rotstein, N. Kopell, A. M. Zhabotinsky, I. R. Epstein (2003). Canard phenomenon and localization of oscillations in the Belousov-Zhabotinsky reaction with global feedback. J. Chem. Phys. 119:8824-8832.
  • H. G. Rotstein, N. Kopell, A. M. Zhabotinsky, I. R. Epstein (2003). A canard mechanism for localization in systems of globally coupled oscillators. SIAM J. Appl. Math., 63:1098-2019.

Book Chapters

Scienctific (Peer Reviewed) Journals

Teaching Material