Principle
Neuron Doctrine
The nervous system is made up of discrete individual cells (neurons), which are genetically and metabolically distinct units.
Neuroscience
Field: Neuroscience
Sequence of Expressions
Principle
Hebbian Learning
An increase in synaptic efficacy arises from a presynaptic cell's repeated and persistent stimulation of a postsynaptic cell ('Cells that fire together, wire together').
Principle
Dale's Principle
A neuron performs the same chemical action at all of its synaptic connections to other cells, regardless of the identity of the target cell.
The anterior spinal nerve roots contain only motor fibers and posterior roots only sensory fibers.