Phantom Limb
Updated 2026-08-02
INTRODUCTION
English translation pending.
CORE DEFINITION
First described systematically by the physician Silas Weir Mitchell during the American Civil War, phantom limb is the experience of a missing body part as still present, often with cramping or burning pain. The accepted explanation is that the somatosensory cortex retains a representation of the limb and continues generating signals after the input disappears. Mirror therapy, introduced by V. S. Ramachandran, uses visual feedback to retrain that map.
SCAFFOLDING EFFECT
Reduce cognitive load
- Expect residue after loss: treat lingering pain after a breakup, exit, or death as a map that has not updated - Retrain the map: use new evidence and feedback rather than waiting for the feeling to fade - Check the structure: ask whether an organization still reacts to a unit that no longer exists
Anchor fast decisions
The somatosensory cortex keeps a topographic map of the body, and removing a limb does not delete that map. Spontaneous activity and rewiring from neighboring regions keep generating sensations that the brain attributes to the missing part. Pain arises partly from the mismatch between the map's expectation of movement and the absence of confirming feedback.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- zh.wikipedia.orghttps://zh.wikipedia.org/wiki/%E5%B9%BB%E8%82%A2verified
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