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Evan M. Gordon, Roselyne J. Chauvin, Andrew N. Van, Aishwarya Rajesh, Ashley N. Nielsen, Dillan J. Newbold, Charles J. Lynch, Nicole A. Seider, Samuel R. Krimmel, Kristen M. Scheidter and 38 more
Motor cortex (M1) has been thought to form a continuous somatotopic homunculus extending down the precentral gyrus from foot to face representations 1,2 , despite evidence for concentric functional zones 3 and maps of complex actions 4 . Here, using precision functional magnetic resonance imaging (fMRI) methods, we find that the classic homunculus is interrupted by regions with distinct connectivity, structure and function, alternating with effector-specific (foot, hand and mouth) areas. These inter-effector regions exhibit decreased cortical thickness and strong functional connectivity to each other, as well as to the cingulo-opercular network (CON), critical for action 5 and physiological control 6 , arousal 7 , errors 8 and pain 9 . This interdigitation of action control-linked and motor effector regions was verified in the three largest fMRI datasets. Macaque and pediatric (newborn, infant and child) precision fMRI suggested cross-species homologues and developmental precursors of the inter-effector system. A battery of motor and action fMRI tasks documented concentric effector somatotopies, separated by the CON-linked inter-effector regions. The inter-effectors lacked movement specificity and co-activated during action planning (coordination of hands and feet) and axial body movement (such as of the abdomen or eyebrows). These results, together with previous studies demonstrating stimulation-evoked complex actions 4 and connectivity to internal organs 10 such as the adrenal medulla, suggest that M1 is punctuated by a system for whole-body action planning, the somato-cognitive action network (SCAN). In M1, two parallel systems intertwine, forming an integrate–isolate pattern: effector-specific regions (foot, hand and mouth) for isolating fine motor control and the SCAN for integrating goals, physiology and body movement.
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Gordon, E. M., Chauvin, R. J., Van, A. N., Rajesh, A., Nielsen, A. N., Newbold, D. J., Lynch, C. J., Seider, N. A., Krimmel, S. R., Scheidter, K. M., Monk, J., Miller, R. L., Metoki, A., Montez, D. F., Zheng, A., Elbau, I., Madison, T. J., Nishino, T., Myers, M. J., … Dosenbach, N. U. (2023). A somato-cognitive action network alternates with effector regions in motor cortex. Nature, 617(7960), 351–359. https://doi.org/10.1038/s41586-023-05964-2
Gordon, Evan M., et al. "A somato-cognitive action network alternates with effector regions in motor cortex." Nature, vol. 617, no. 7960, 2023, pp. 351–359, https://doi.org/10.1038/s41586-023-05964-2.
Gordon, Evan M., Roselyne J. Chauvin, Andrew N. Van, Aishwarya Rajesh, Ashley N. Nielsen, Dillan J. Newbold, Charles J. Lynch, et al. "A somato-cognitive action network alternates with effector regions in motor cortex." Nature 617, no. 7960 (2023): 351–359. https://doi.org/10.1038/s41586-023-05964-2.
Gordon E. M., Chauvin R. J., Van A. N. [и др.] A somato-cognitive action network alternates with effector regions in motor cortex // Nature. — 2023. — Vol. 617, № 7960. — P. 351–359. — URL: https://doi.org/10.1038/s41586-023-05964-2
@article{gordon2023somatocognitive,
title = {{A somato-cognitive action network alternates with effector regions in motor cortex}},
author = {Evan M. Gordon and Roselyne J. Chauvin and Andrew N. Van and Aishwarya Rajesh and Ashley N. Nielsen and Dillan J. Newbold and Charles J. Lynch and Nicole A. Seider and Samuel R. Krimmel and Kristen M. Scheidter and Julia Monk and Ryland L. Miller and Athanasia Metoki and David F. Montez and Annie Zheng and Immanuel Elbau and Thomas J. Madison and Tomoyuki Nishino and Michael J. Myers and Sydney Kaplan and Carolina Badke D’Andrea and Damion V. Demeter and Matthew Feigelis and Julian S.B. Ramirez and Ting Xu and Deanna M. Barch and Christopher D. Smyser and Cynthia E. Rogers and Jan Zimmermann and Kelly N. Botteron and John R. Pruett and Jon Timothy Willie and Peter Brunner and Joshua S. Shimony and Benjamin P. Kay and Scott A. Marek and Scott A. Norris and Caterina Gratton and Chad M. Sylvester and Jonathan D. Power and Conor M. Liston and Deanna J. Greene and Jarod L. Roland and Steven E. Petersen and Marcus E. Raichle and Timothy O. Laumann and Damien A. Fair and Nico U.F. Dosenbach},
journal = {Nature},
year = {2023},
volume = {617},
number = {7960},
pages = {351--359},
doi = {10.1038/s41586-023-05964-2},
url = {https://doi.org/10.1038/s41586-023-05964-2}
}TY - JOUR AU - Gordon, Evan M. AU - Chauvin, Roselyne J. AU - Van, Andrew N. AU - Rajesh, Aishwarya AU - Nielsen, Ashley N. AU - Newbold, Dillan J. AU - Lynch, Charles J. AU - Seider, Nicole A. AU - Krimmel, Samuel R. AU - Scheidter, Kristen M. AU - Monk, Julia AU - Miller, Ryland L. AU - Metoki, Athanasia AU - Montez, David F. AU - Zheng, Annie AU - Elbau, Immanuel AU - Madison, Thomas J. AU - Nishino, Tomoyuki AU - Myers, Michael J. AU - Kaplan, Sydney AU - D’Andrea, Carolina Badke AU - Demeter, Damion V. AU - Feigelis, Matthew AU - Ramirez, Julian S.B. AU - Xu, Ting AU - Barch, Deanna M. AU - Smyser, Christopher D. AU - Rogers, Cynthia E. AU - Zimmermann, Jan AU - Botteron, Kelly N. AU - Pruett, John R. AU - Willie, Jon Timothy AU - Brunner, Peter AU - Shimony, Joshua S. AU - Kay, Benjamin P. AU - Marek, Scott A. AU - Norris, Scott A. AU - Gratton, Caterina AU - Sylvester, Chad M. AU - Power, Jonathan D. AU - Liston, Conor M. AU - Greene, Deanna J. AU - Roland, Jarod L. AU - Petersen, Steven E. AU - Raichle, Marcus E. AU - Laumann, Timothy O. AU - Fair, Damien A. AU - Dosenbach, Nico U.F. TI - A somato-cognitive action network alternates with effector regions in motor cortex JO - Nature VL - 617 IS - 7960 SP - 351 EP - 359 PY - 2023 DA - 2023/04/19 DO - 10.1038/s41586-023-05964-2 UR - https://doi.org/10.1038/s41586-023-05964-2 ER -
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