Different population dynamics in the supplementary motor area and motor cortex during reaching
نویسندگان
چکیده
منابع مشابه
Comparison of neuronal activity in the supplementary motor area and primary motor cortex.
Neuronal activity in the supplementary motor area (SMA) and primary motor cortex (MI) have been compared in many experiments during performance of many different motor tasks. On one hand, the activity in both areas may appear similar, especially when the motor task is simple. On the other hand, if the motor tasks are more demanding, neuronal activity in the SMA exhibits a variety of complex rel...
متن کاملreaching dynamics in motor cortex using 1 Cartesian spatial coordinates
3 Hirokazu Tanaka and Terrence J. Sejnowski 4 5 1 Howard Hughes Medical Institute, Computational Neurobiology Laboratory, The Salk Institute for 6 Biological Studies, La Jolla, CA 92037 7 2 School of Information Science, Japan Advanced Institute of Science and Technology, Nomi, Ishikawa 8 9231211, Japan 9 3 Division of Biological Sciences, University of California at San Diego, La Jolla, CA 920...
متن کاملComputing reaching dynamics in motor cortex with Cartesian spatial coordinates.
How neurons in the primary motor cortex control arm movements is not yet understood. Here we show that the equations of motion governing reaching simplify when expressed in spatial coordinates. In this fixed reference frame, joint torques are the sums of vector cross products between the spatial positions of limb segments and their spatial accelerations and velocities. The consequences that fol...
متن کاملBilateral processing of motor commands in the motor cortex of the cat during target-reaching.
Single-unit activity of the motor cortex (area 4gamma) was studied in cats performing reaching with the contra- versus ipsilateral forelimb. Reaching was initiated by a tone burst (Go cue), different limbs were used in separate blocks of trials. During reaching performed with the contralateral limb, three types of neurons were observed. The first type had biphasic pattern with an initial compon...
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We used functional magnetic resonance imaging to examine the representation pattern for repetitive voluntary finger movements in the primary motor cortex (M1) and the supplementary motor area (SMA) of humans. Healthy right-handed participants performed repetitive individuated flexion-extension movements of digits 1, 2, and 3 using the dominant hand. Contralateral functional labeling for the gro...
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ژورنال
عنوان ژورنال: Nature Communications
سال: 2018
ISSN: 2041-1723
DOI: 10.1038/s41467-018-05146-z