Spinal premotor interneurons controlling antagonistic muscles are spatially intermingled
Spinal premotor interneurons controlling antagonistic muscles are spatially intermingled
复制标题
控制拮抗肌的脊髓前运动中间神经元在空间上混合
DOI:
10.1101/2021.02.10.430608
复制
发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Ronzano R
中科院分区:
文献类型:
--
作者:
Ronzano R
Elaborate behaviours are produced by tightly controlled flexor-extensor motor neuron activation patterns. Motor neurons are regulated by a network of interneurons within the spinal cord, but the computational processes involved in motor control are not fully understood. The neuroanatomical arrangement of motor and premotor neurons into topographic patterns related to their controlled muscles is thought to facilitate how information is processed by spinal circuits. Rabies retrograde monosynaptic tracing has been used to label premotor interneurons innervating specific motor neuron pools, with previous studies reporting topographic mediolateral positional biases in flexor and extensor premotor interneurons. To more precisely define how premotor interneurons contacting specific motor pools are organized, we used multiple complementary viral-tracing approaches in mice to minimize systematic biases associated with each method. Contrary to expectations, we found that premotor interneurons contacting motor pools controlling flexion and extension of the ankle are highly intermingled rather than segregated into specific domains like motor neurons. Thus, premotor spinal neurons controlling different muscles process motor instructions in the absence of clear spatial patterns among the flexor-extensor circuit components.
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影响因子:
9.8
作者:
Bhumbra GS;Beato M
通讯作者:
Beato M
DOI:
10.1523/jneurosci.16-03-00974.1996
发表时间:
1996-02
影响因子:
5.8
作者:
A. Todd;C. Watt;R. Spike;W. Sieghart
通讯作者:
A. Todd;C. Watt;R. Spike;W. Sieghart
影响因子:
16.2
作者:
Balaskas, Nikolaos;Abbott, L. F.;Ng, David
通讯作者:
Ng, David
DOI:
--
发表时间:
2019
期刊:
bioRxiv
影响因子:
--
作者:
Estibaliz Gómez;A. Sneider;Hasini Jayatilaka;J. Phillip;D. Wirtz;A. Muñoz
通讯作者:
A. Muñoz
影响因子:
8.8
作者:
Kim EJ;Jacobs MW;Ito-Cole T;Callaway EM
通讯作者:
Callaway EM