scholarly journals Cortical Projection From the Premotor or Primary Motor Cortex to the Subthalamic Nucleus in Intact and Parkinsonian Adult Macaque Monkeys: A Pilot Tracing Study

2020 ◽  
Vol 14 ◽  
Author(s):  
Simon Borgognon ◽  
Jérôme Cottet ◽  
Simon Badoud ◽  
Jocelyne Bloch ◽  
Jean-François Brunet ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Subthalamic Nucleus ◽  
Primary Motor Cortex ◽  
Cortical Projection ◽  
Macaque Monkeys

scholarly journals Corticotectal Projections From the Premotor or Primary Motor Cortex After Cortical Lesion or Parkinsonian Symptoms in Adult Macaque Monkeys: A Pilot Tracing Study

2019 ◽  
Vol 13 ◽  
Author(s):  
Michela Fregosi ◽  
Alessandro Contestabile ◽  
Simon Badoud ◽  
Simon Borgognon ◽  
Jérôme Cottet ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Primary Motor Cortex ◽  
Cortical Lesion ◽  
Macaque Monkeys

Somatotopically arranged inputs from putamen and subthalamic nucleus to primary motor cortex

2006 ◽  
Vol 56 (3) ◽  
pp. 300-308 ◽  
Author(s):  
Shigehiro Miyachi ◽  
Xiaofeng Lu ◽  
Michiko Imanishi ◽  
Kaori Sawada ◽  
Atsushi Nambu ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Subthalamic Nucleus ◽  
Primary Motor Cortex

scholarly journals Short-term effects of unilateral lesion of the primary motor cortex (M1) on ipsilesional hand dexterity in adult macaque monkeys

2011 ◽  
Vol 217 (1) ◽  
pp. 63-79 ◽  
Author(s):  
Shahid Bashir ◽  
Mélanie Kaeser ◽  
Alexander Wyss ◽  
Adjia Hamadjida ◽  
Yu Liu ◽  
...  
Keyword(s):  
Motor Cortex ◽  
Primary Motor Cortex ◽  
Unilateral Lesion ◽  
Short Term ◽  
Macaque Monkeys ◽  
Hand Dexterity ◽  
Short Term Effects

scholarly journals Layer specificity of inputs from supplementary motor area and dorsal premotor cortex to primary motor cortex in macaque monkeys

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Taihei Ninomiya ◽  
Ken-ichi Inoue ◽  
Eiji Hoshi ◽  
Masahiko Takada
Keyword(s):  
Motor Cortex ◽  
Primary Motor Cortex ◽  
Supplementary Motor Area ◽  
Motor Behavior ◽  
Premotor Cortex ◽  
Distribution Patterns ◽  
Motor Area ◽  
Tracer Injection ◽  
Macaque Monkeys ◽  
Motor Information

AbstractThe primate frontal lobe processes diverse motor information in parallel through multiple motor-related areas. For example, the supplementary motor area (SMA) is mainly involved in internally-triggered movements, whereas the premotor cortex (PM) is highly responsible for externally-guided movements. The primary motor cortex (M1) deals with both aspects of movements to execute a single motor behavior. To elucidate how the cortical motor system is structured to process a variety of information, the laminar distribution patterns of signals were examined between SMA and M1, or PM and M1 in macaque monkeys by using dual anterograde tract-tracing. Dense terminal labeling was observed in layers 1 and upper 2/3 of M1 after one tracer injection into SMA, another tracer injection into the dorsal division of PM resulted in prominent labeling in the deeper portion of layer 2/3. Weaker labeling was also visible in layer 5 in both cases. On the other hand, inputs from M1 terminated in both the superficial and the deep layers of SMA and PM. The present data indicate that distinct types of motor information are arranged in M1 in a layer-specific fashion to be orchestrated through a microcircuit within M1.

Reorganization of Primary Motor Cortex in Adult Macaque Monkeys With Long-Standing Amputations

2000 ◽  
Vol 84 (4) ◽  
pp. 2133-2147 ◽  
Author(s):  
Hui-Xin Qi ◽  
Iwona Stepniewska ◽  
Jon H. Kaas
Keyword(s):  
Motor Cortex ◽  
Primary Motor Cortex ◽  
Arm Movements ◽  
Threshold Current ◽  
Macaque Monkeys ◽  
Stimulation Of

The organization of primary motor cortex (M1) of adult macaque monkeys was examined years after therapeutic amputation of part of a limb or digits. For each case, a large number of sites in M1 were electrically stimulated with a penetrating microelectrode, and the evoked movements and levels of current needed to evoke the movements were recorded. Results from four monkeys with the loss of a forelimb near or above the elbow show that extensive regions of cortex formerly devoted to the missing hand evoked movements of the stump and the adjoining shoulder. Threshold current levels for stump movements were comparable to those for normal arm movements. Few or no sites in the estimated former territory of the hand evoked face movements. Similar patterns of reorganization were observed in all four cases, which included two monkeys injured as adults, one as a juvenile, and one as an infant. In a single monkey with a hindlimb amputation at the knee as an infant, stimulation of cortex in the region normally devoted to the foot moved the leg stump, again at thresholds in the range for normal movements. Finally, in a monkey that had lost digit 5 and the distal phalanges of digits 2–4 at 2 yr of age, much of the hand portion of M1 was devoted to movements of the digit stumps.

scholarly journals Subthalamic Nucleus Neurons Are Synchronized to Primary Motor Cortex Local Field Potentials in Parkinson's Disease

2013 ◽  
Vol 33 (17) ◽  
pp. 7220-7233 ◽  
Author(s):  
S. A. Shimamoto ◽  
E. S. Ryapolova-Webb ◽  
J. L. Ostrem ◽  
N. B. Galifianakis ◽  
K. J. Miller ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Motor Cortex ◽  
Subthalamic Nucleus ◽  
Local Field ◽  
Primary Motor Cortex ◽  
Local Field Potentials ◽  
Field Potentials
Sign in / Sign up

Export Citation Format

Share Document