Generation of sleep spindles |
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Spindles are generated due to the capability of
thalamic reticular neurons to generate
a rebound low-threshold calcium spike and a burst of action potentials
in thalamocortical neurons, which then returns to the same thalamic
reticular cell as a barrage of excitatory postsynaptic potentials (EPSPs).
The waxing of spindle waves is due to the recruitment of additional cells into the network oscillation. |
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Adapted from Fig. 5 from McCormick and Bal (1997)
©1998 BITS OF SLEEP (Demo) : The brain in sleep: Thalamocortical system.