Distinguish nociception from pain perception, and explain why the distinction matters when discussing chronic pain.

### What a good answer covers - Define nociception as the detection of noxious stimuli by specialized sensory neurons. - Define pain perception as a subjective experience involving brain processing. - Describe signal transmission through the spinal cord and ascending pathways. - Explain that emotion can influence pain and that chronic pain can be associated with emotional distress. ### The concept Nociception identifies a sensory process, whereas pain names the experience interpreted by the nervous system. The thalamus, somatosensory cortex, insula, and anterior cingulate cortex contribute to interpreting pain signals. Emotional states can affect that experience, which helps explain why chronic pain has emotional as well as sensory dimensions in the material. ### Terms - **Nociception**: Detection of noxious stimuli. - **Nociceptor**: A sensory neuron detecting noxious stimuli. - **Subjective experience**: A personally experienced state. ### Remember Do not use nociception and pain as synonyms: detection and experience are related but distinct.