Editing Neural Darwinism (section)

===== Synaptic modification =====

Once the basic variegated anatomical structure of the primary repertoire of neuronal groups is laid down, it is more or less fixed. But given the numerous and diverse collection of neuronal group networks, there are bound to be functionally equivalent albeit anatomically non-[[isomorphic]] neuronal groups and networks capable of responding to certain sensory input. This creates a competitive environment where neuronal groups proficient in their responses to certain inputs are "differentially amplified" through the enhancement of the synaptic [[efficacy|efficacies]] of the selected neuronal group network. This leads to an increased probability that the same network will respond to similar or identical signals at a future time. This occurs through the strengthening of neuron-to-neuron synapses. These adjustments allow for [[neural plasticity]] along a fairly quick timetable.