deafferentation
Input pathway severance
Deafferentation is the loss or interruption of sensory nerve input to the central nervous system.
When afferent nerves—those carrying signals from the body to the brain—are damaged or severed, the affected area loses sensation.
The term appears in medical and neuroscience contexts: deafferentation pain, deafferentation syndrome.
Phantom limb sensations arise partly from deafferentation of the missing limb's neural pathways.
research
Blocking all external stimuli
- neuroplasticityBrain's self-rewiring ability
- denervationLoss of nerve supply
- sproutingSeeds beginning growth
sensory
Body's spatial self-awareness
- somatosensoryRelating to bodily sensation
- sensory lossImpaired ability to perceive
- numbnessLoss of sensation
- phantom sensationFeeling from missing body part
sensory deprivation
Blocking all external stimuli
- neuroplasticityBrain's self-rewiring ability
- denervationLoss of nerve supply
- sproutingSeeds beginning growth
proprioception
Body's spatial self-awareness
- somatosensoryRelating to bodily sensation
- sensory lossImpaired ability to perceive
- numbnessLoss of sensation
phantom limb
Sensation from amputated part
neurectomy
Surgical nerve excision
- myelotomySurgical cut into spinal cord