On-line memory formation with theta phase precession

 

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Neural activiries with theta phase precession and synaptic plasticity in the CA3 of the hippocampus during one-time traverse.
Theta phase precession allows selective and asymmetric connections among cells according to the time sequence of the traverse.
Reactivation in motionless state (the sleeping rat in the figure) reconstruct the sequence of the traverse.
Reactivation at the goal position just after the traverse can generate reverse reactivation from the goal to the start position.

REFERENCES

  • Molter C, Sato N, Yamaguchi Y, “Reactivation of behavioral activity during sharp waves: A computational model for two stage hippocampal dynamics”, Hippocampus, Volume 17, Issue 3 pp. 201-209 (2007)
  • Yamaguchi Y, “A Theory of hippocampal memory based on theta phase precession”, Biological Cybernetics, vol.89, pp. 1-9. (2003)

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