Increasing excitatory signals above the threshold for a neuron to fire will not affect the intensity of an action potential.This indicates that a neuron's reaction

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This statement refers to the phenomenon of the all-or-none response in neurons, which means that once a neuron reaches its threshold for firing an action potential, the resulting response will be the same regardless of the strength of the stimulus that triggered it. This is due to the fact that once the threshold is reached, voltage-gated ion channels will open and propagate the action potential along the axon, regardless of how many excitatory signals were received.

Increasing Excitatory Signals Above the Threshold for a Neuron to Fire