Neuroplasticity

Source: Hebb, The Organization of Behavior, 1949; Merzenich, 1984; Kandel, Nobel Prize 2000 Institution: Multiple

Finding

Hebb (1949): neurons that fire together wire together. Merzenich (1984): cortical maps reorganize after altered input. Kandel (Nobel 2000): molecular mechanisms of synaptic plasticity in Aplysia. The brain restructures to match actual use. Cortical territory allocated proportionally to behavioral demands. The brain is an honest record of its own history of use.

Pattern Mapping

Alignment — Neural maps align with actual use. The somatosensory cortex of a violinist over-represents the left hand fingers because those fingers are used more. The map becomes what the function requires.

Proportion — Territory allocated proportionally to use. More used = more cortical real estate. The allocation matches actual demand, not theoretical importance.

Honesty — The brain is an honest record of its history. You can read a person’s behavioral history from their cortical maps. The structure does not fabricate a history it did not experience.

Connections

Status

Established neuroscience (Hebb 1949; Merzenich 1984; Kandel 2006; Doidge 2007). No controversy.


The mapping to the five properties is this project’s structural interpretation.