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Critical Reviews™ in Biomedical Engineering
SJR: 0.26 SNIP: 0.375 CiteScore™: 1.4

ISSN 印刷: 0278-940X
ISSN オンライン: 1943-619X

Critical Reviews™ in Biomedical Engineering

DOI: 10.1615/CritRevBiomedEng.2016016540
pages 33-45

Neural Correlates of Cognitive Modulation of Pain Perception in the Human Brainstem and Cervical Spinal Cord using Functional Magnetic Resonance Imaging: A Review

Roxanne H. Leung
Center for Neuroscience Studies, Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada
Patrick W. Stroman
Centre for Neuroscience Studies, Queen's University, 2nd floor, Botterell Hall, 18 Stuart Street, Kingston, ON, Canada K7L 3N6; Department of Physics, Queen's University, Kingston, ON, Canada, K7L 3N6

要約

Pain is a multifaceted and malleable sensory experience that is processed at all levels of the central nervous system (CNS). The experience of pain can vary widely across a healthy population and even within an individual and can be influenced by cognitive factors such as attention, expectation, suggestion, and attitudes. The neurophysiological role of attention in cognitive modulation of pain is the focus for the work presented in this review. Behavioral studies show that pain perception was reduced under cognitive loads that placed a continuous demand on executive functions such as working memory. Neuroimaging, pharmacological studies, and electrophysiological studies provide evidence that the underpinnings of cognitive modulation of pain involve a network of descending modulation of pain among cortical and brainstem structures. However, the role and relationship of subcortical regions in the brainstem and spinal cord during cognitive modulation of pain are not well understood. This review examines the neurophysiology of pain, processing in the CNS, and how cognitive factors such as attention can modulate nociceptive signaling and alter the perception of pain, especially at the subcortical level.


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