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Cycle 8: Gamma oscillations. Why gamma gives good buzz [50 Hz = 20 ms period] Self-organizing cell assemblies group in 15-30 ms windows The time constant of PSPs leads to best integration of inputs received within 30 ms Best window for synaptic plasticity within 40 ms.

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cycle 8 gamma oscillations

Cycle 8: Gamma oscillations

Why gamma gives good buzz

[50 Hz = 20 ms period]

Self-organizing cell assemblies group in 15-30 ms windows

The time constant of PSPs leads to best integration of inputs received within 30 ms

Best window for synaptic plasticity within 40 ms

cycle 8 gamma oscillations1

Cycle 8: Gamma oscillations

Best window for synaptic plasticity within 40 ms

cycle 9 gamma oscillations

Cycle 9: Gamma oscillations

Gamma mechanisms – external and internal generation

stimulus-locked (evoked) activity competes with induced gamma

..see Cycle 10, p.263 “Evoked activity…”