An unpleasant sensory and emotional experience. Pain should be distinguished from a stimulus applied by an experimenter and from an observer's inference that someone else is experiencing pain.
Reduction in pain, distinguished from sedation and from elimination of the underlying injury or disease. Drug exposure, expectation and prior experience can contribute through different mechanisms.

Ancestors (5)

  1. Perception
  2. Sensory system
  3. Neuroscience
  4. Biology
  5. Home

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