What pain theory proposes that pain receptors share pathways with other sensory modalities and that different activity patterns of the same neurons can be used to signal painful or nonpainful stimuli?
A) Pattern
B) Specificity
C) Gate control
D) Neuromatrix
Ans: A
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A group of pain theories known as the pattern theory proposes that receptors share pathways with other sensory modalities, and different activity patterns of the same neurons can be used to signal painful or nonpainful stimuli. The specificity theory regards pain as a separate sensory modality evoked by the activity of specific receptors that transmit information to forebrain pain centers, where pain is experienced. Gate control theory postulated the presence of neural gating mechanisms at the segmental spinal cord level to account for interactions between pain and other sensory modalities. The neuromatrix theory proposes that the brain contains a widely distributed neural network.
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