Sensorimotor network
In neuroscience, the sensorimotor network (SMN) is a large-scale brain network . The SMN includes somatosensory (post-central gyrus) and motor (pre-central gyrus) regions and extends to the supplementary motor areas.[1] Studies have shown that this network is activated during motor tasks such as finger tapping[2] indicating that these regions may involve a pre-mediated state that ready the brain when performing and coordinating a motor task.[1] Dysfunction in the SMN has been implicated in various neuropsychiatric disorders.
Pathophysiology
- 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.[3][4]
- Amyotrophic Lateral Sclerosis: Altered functional connectivity patterns in the SMN may contribute to various symptoms in the neurodegenerative disease .[1][2][5]
References
- Chenji S, Jha S, Lee D, Brown M, Seres P, Mah D, Kalra S (June 2016). "Investigating Default Mode and Sensorimotor Network Connectivity in Amyotrophic Lateral Sclerosis". PLOS One. 11 (6): e0157443. doi:10.1371/journal.pone.0157443. PMC 4913931. PMID 27322194.
- Biswal B, Yetkin FZ, Haughton VM, Hyde JS (October 1995). "Functional connectivity in the motor cortex of resting human brain using echo-planar MRI". Magnetic Resonance in Medicine. 34 (4): 537–41. doi:10.1002/mrm.1910340409. PMID 8524021.
- Martino M, Magioncalda P, Huang Z, Conio B, Piaggio N, Duncan NW, Rocchi G, Escelsior A, Marozzi V, Wolff A, Inglese M, Amore M, Northoff G (April 2016). "Contrasting variability patterns in the default mode and sensorimotor networks balance in bipolar depression and mania". Proceedings of the National Academy of Sciences of the United States of America. 113 (17): 4824–9. doi:10.1073/pnas.1517558113. PMC 4855585. PMID 27071087.
- Doucet GE, Bassett DS, Yao N, Glahn DC, Frangou S (December 2017). "The Role of Intrinsic Brain Functional Connectivity in Vulnerability and Resilience to Bipolar Disorder". The American Journal of Psychiatry. 174 (12): 1214–1222. doi:10.1176/appi.ajp.2017.17010095. PMC 5711589. PMID 28817956.
- Agosta F, Valsasina P, Absinta M, Riva N, Sala S, Prelle A, Copetti M, Comola M, Comi G, Filippi M (October 2011). "Sensorimotor functional connectivity changes in amyotrophic lateral sclerosis". Cerebral Cortex. 21 (10): 2291–8. doi:10.1093/cercor/bhr002. PMID 21368084.
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