The versatility of the nervous system comes from not only the various ways in which neurons communicate, but also their “plasticity,” or ability to change those connections. The protein tomosyn’s ability to prevent SNARE binding of vesicles and resulting glutamate release makes a dramatic difference in neural communication style and plasticity between tonic and phasic neurons.
The versatility of the nervous system comes from not only the diversity of ways in which neurons communicate in circuits, but also their "plasticity," or ability to change those connections when new information has to be remembered, when their circuit partners change, or other conditions emerge.