excitatory neuron

Neurons {excitatory neuron} can excite other neurons.

types

They are either bursting {bursting cell} or non-bursting. They cannot change from one type to the other.

bursting

Bursting cells respond to sustained intracellular current with two to four spikes, followed by hyperpolarization, followed by burst, followed by hyperpolarization, and so on, with 0.2 to 10 cycles per second.

Bursting cells are large. Apical dendrites extend to layer 1 to contact many cells. Axons project to ipsilateral superior colliculus.

Bursting neurons accumulate calcium more efficiently in axon terminals than cells that have isolated spikes.

Layer-5 bursting neurons induce synaptic plasticity in neurons outside cortex. Spike bursts turn on short-term memory, which then decays over several seconds.

non-bursting

Non-bursting neurons, such as pyramidal or spiny stellate neurons, have one spike or sustained output. They do not have spike cycles.

Whole Section in One File

4-Zoology-Organ-Nerve-Neuron-Kinds

Drawings

Technical Information

Date Modified: 2022.0224