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The gate control theory of pain describes how non-painful sensations can override and reduce painful sensations. A painful, nociceptive stimulus stimulates primary afferent fibers and travels to the brain via transmission cells. Increasing activity of the transmission cells results in increased perceived pain. Conversely, decreasing activity of ...
This research demonstrated how the perception of pain relies on visual input. The use of fMRI to study brain activity confirms the link between visual perception and pain perception. It has been found that the brain regions that convey the perception of pain are the same regions that encode the size of visual inputs. [21]
Pain and pleasure. Some philosophers, such as Jeremy Bentham, Baruch Spinoza, and Descartes, have hypothesized that the feelings of pain (or suffering) and pleasure are part of a continuum. There is strong evidence of biological connections between the neurochemical pathways used for the perception of both pain and pleasure, as well as other ...
Retrieved 12 January 2015. Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage Alt URL [permanent dead link] Derived from Bonica JJ (June 1979). "The need of a taxonomy". Pain. 6 (3): 247–248. doi: 10.1016/0304-3959 (79)90046-0.
Pain tolerance. Pain tolerance is the maximum level of pain that a person is able to tolerate. Pain tolerance is distinct from pain threshold (the point at which pain begins to be felt). [1] The perception of pain that goes in to pain tolerance has two major components. First is the biological component—the headache or skin prickling that ...
The sensory nervous system is a part of the nervous system responsible for processing sensory information. A sensory system consists of sensory neurons (including the sensory receptor cells), neural pathways, and parts of the brain involved in sensory perception and interoception. Commonly recognized sensory systems are those for vision ...
Biopsychosocial models are a class of trans-disciplinary models which look at the interconnection between biology, psychology, and socio - environmental factors. These models specifically examine how these aspects play a role in a range of topics but mainly psychiatry, health and human development. The term is generally used to describe a model ...
A nociceptor (from Latin nocere 'to harm or hurt'; lit. 'pain receptor') is a sensory neuron that responds to damaging or potentially damaging stimuli by sending "possible threat" signals [1][2][3] to the spinal cord and the brain. The brain creates the sensation of pain to direct attention to the body part, so the threat can be mitigated; this ...