The Importance of Hippocampal Gamma Oscillation for Place Cells

A Model That Accounts for Phase Precession and Spatial Shift
  • Ole Jensen
  • John E. Lisman


The firing of rat hippocampal place cells advances to earlier phases of the theta cycle as the rat moves through a place field. It has also been observed that when a rat repeatedly traverses a track, the place field shifts slowly in a direction opposite to the direction of movement. We have constructed a physiologically realistic network model of the CA3 region, based on nested theta and gamma oscillations. This model accounts for the phase precession and place-field shift. From this work, a set of further predictions follows which are testable if both theta and gamma oscillations are measured in conjunction with place cell activity.


Place Cell Phase Advance Place Field Gamma Oscillation Annular Ring 
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Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Ole Jensen
    • 1
  • John E. Lisman
    • 1
  1. 1.Volen Center for Complex SystemsBrandeis UniversityWalthamUSA

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