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Sensorimotor network
Network of the brain used for somatosensory-informed coordination of movement From Wikipedia, the free encyclopedia
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The sensorimotor network (SMN), also known as somatomotor network, is a large-scale brain network that primarily includes somatosensory (postcentral gyrus) and motor (precentral gyrus) regions and extends to the supplementary motor areas (SMA).[1] The auditory cortex may also be included,[2] as well as the visual cortex.[3] The SMN is activated during motor tasks, such as finger tapping,[4] indicating that the network readies the brain when performing and coordinating motor tasks.[1]
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Clinical significance
Dysfunction in the SMN has been implicated in various neuropsychiatric disorders.
- Bipolar Disorder: The psychomotor disturbances that characterize the depressive and manic phases of bipolar disorder may be related to dysfunction in the sensorimotor network (SMN) and its balance with other large-scale networks such as the default mode network.[5][6]
- Amyotrophic Lateral Sclerosis: Altered functional connectivity patterns in the SMN may contribute to various symptoms in the neurodegenerative disease .[1][4][7]
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Nomenclature
In 2019, Uddin et al. proposed that pericentral network (PN) be used as a standard anatomical name for the network.[2]
References
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