Primary motor and sensory cortical areas communicate via spatiotemporally coordinated networks at multiple frequencies

被引:62
作者
Arce-McShane, Fritzie I. [1 ]
Ross, Callum F. [1 ]
Takahashi, Kazutaka [1 ]
Sessle, Barry J. [2 ]
Hatsopoulos, Nicholas G. [1 ,3 ,4 ]
机构
[1] Univ Chicago, Dept Organismal Biol & Anat, 1025 E 57Th St, Chicago, IL 60637 USA
[2] Univ Toronto, Fac Dent, 124 Edward St, Toronto, ON M5G 1G6, Canada
[3] Univ Chicago, Comm Computat Neurosci, Chicago, IL 60637 USA
[4] Univ Chicago, Comm Neurobiol, Chicago, IL 60637 USA
关键词
motor cortex; somatosensory cortex; coherence; learning; orofacial cortex; OROFACIAL SENSORIMOTOR CORTEX; PRIMARY SOMATOSENSORY CORTEX; MONKEY MACACA-FASCICULARIS; FUNCTIONAL-PROPERTIES; VOLUNTARY MOVEMENTS; MACAQUE MONKEYS; SINGLE NEURONS; FACE; SYNCHRONIZATION; OSCILLATIONS;
D O I
10.1073/pnas.1600788113
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Skilled movements rely on sensory information to shape optimal motor responses, for which the sensory and motor cortical areas are critical. How these areas interact to mediate sensorimotor integration is largely unknown. Here, we measure intercortical coherence between the orofacial motor (MIo) and somatosensory (SIo) areas of cortex as monkeys learn to generate tongue-protrusive force. We report that coherence between MIo and SIo is reciprocal and that neuroplastic changes in coherence gradually emerge over a few days. These functional networks of coherent spiking and local field potentials exhibit frequency-specific spatiotemporal properties. During force generation, theta coherence (2-6 Hz) is prominent and exhibited by numerous paired signals; before or after force generation, coherence is evident in alpha (6-13 Hz), beta (15-30 Hz), and gamma (30-50 Hz) bands, but the functional networks are smaller and weaker. Unlike coherence in the higher frequency bands, the distribution of the phase at peak theta coherence is bimodal with peaks near 0 degrees and similar to 180 degrees, suggesting that communication between somatosensory and motor areas is coordinated temporally by the phase of theta coherence. Time-sensitive sensorimotor integration and plasticity may rely on coherence of local and large-scale functional networks for cortical processes to operate at multiple temporal and spatial scales.
引用
收藏
页码:5083 / 5088
页数:6
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