PSYC 323 Lecture Notes - Lecture 10: Hyperalgesia, Enkephalin, Fibromyalgia
Document Summary
Thinner, slower axons dull pain (prolonging pain) 2 types of neurons found in the spinal cord. Interneuron = neural projection that"s contained within a structure (accepting infor within that structure) Inhibits relay of pain information to brain (shuts message off)(sharp pain comes in and goes away all of a sudden) Both aid in ability to experience pain. Sharp pain stimulation of both neuron types. Pain infor is sent brain (interneurons then are inhibiting) Inhibition of pain infor sent to brain sharp burst of pain. Dull pain stimulation of first neuron type. Sent using thin, slow fiber (activating interneuron, creating sharp pain to get interneuron to shut off annoying hey you still got pain signal) Brain"s interpretation of pain is subjective. Intensity (how strong is the pain) vs unpleasantness (how you feel about pain) Emotions and context can alter degree of unpleasantness. Alteration of spinal cord response to painful infor.