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Class Summary
| Class |
Description |
| Edge |
The connection between neurons.
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| Neuron |
The neuron vertex in the growing neural gas network.
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Package smile.vq.hebb Description
Hebbian theory is a neuroscientific theory claiming that an increase in
synaptic efficacy arises from a presynaptic cell's repeated and persistent
stimulation of a postsynaptic cell. It is an attempt to explain synaptic
plasticity, the adaptation of brain neurons during the learning process.
It was introduced by Donald Hebb in his 1949 book The Organization of
Behavior.
The theory is often summarized as "Cells that fire together wire together."
This summary, however, should not be taken too literally. Hebb emphasized
that cell A needs to "take part in firing" cell B, and such causality can
occur only if cell A fires just before, not at the same time as, cell B.
This important aspect of causation in Hebb's work foreshadowed what is
now known about spike-timing-dependent plasticity, which requires temporal
precedence.
The theory attempts to explain associative or Hebbian learning, in which
simultaneous activation of cells leads to pronounced increases in synaptic
strength between those cells. In the study of neural networks in cognitive
function, it is often regarded as the neuronal basis of unsupervised
learning.