%0 Journal Article %1 Kakei1999 %A Kakei, Shinji %A Hoffman, Donna S. %A Strick, Peter L. %D 1999 %J Science %K M1, cortex, external, frame, internal joint motor movement, muscle population primary reference representation, vectors %P 2136-2139 %T Muscle and Movement Representations in the Primary Motor Cortex %V 285 %X What aspects of movement are represented in the primary motor cortex (M1): relatively low-level parameters like muscle force, or more abstract parameters like handpath? To examine this issue, the activity of neurons in M1 was recorded in a monkey trained to perform a task that dissociates three major variables of wrist movement: muscle activity, direction of movement at the wrist joint, and direction of movement in space. A substantial group of neurons in M1 (28 out of 88) displayed changes in activity that were muscle-like. Unexpectedly, an even larger group of neurons in M1 (44 out of 88) displayed changes in activity that were related to the direction of wrist movement in space independent of the pattern of muscle activity that generated the movement. Thus, both ?muscles? and ?movements? appear to be strongly represented in M1.

@article{Kakei1999, abstract = {What aspects of movement are represented in the primary motor cortex (M1): relatively low-level parameters like muscle force, or more abstract parameters like handpath? To examine this issue, the activity of neurons in M1 was recorded in a monkey trained to perform a task that dissociates three major variables of wrist movement: muscle activity, direction of movement at the wrist joint, and direction of movement in space. A substantial group of neurons in M1 (28 out of 88) displayed changes in activity that were muscle-like. Unexpectedly, an even larger group of neurons in M1 (44 out of 88) displayed changes in activity that were related to the direction of wrist movement in space independent of the pattern of muscle activity that generated the movement. Thus, both ?muscles? and ?movements? appear to be strongly represented in M1.}, added-at = {2009-06-26T15:25:19.000+0200}, author = {Kakei, Shinji and Hoffman, Donna S. and Strick, Peter L.}, biburl = {https://www.bibsonomy.org/bibtex/248d89cc9f591a6e3bbcd6641a32ea017/butz}, comment = {Versuch: Es wurde untersucht, welche Infos im M1 von einem Affen repräsentiert sind. Es gibt Neuronen, die Muskelaktivität und es gibt welche die externe Koordinaten repräsentieren.}, description = {diverse cognitive systems bib}, interhash = {f9d06ddc5c8cf79b38331b261be893a7}, intrahash = {48d89cc9f591a6e3bbcd6641a32ea017}, journal = {Science}, keywords = {M1, cortex, external, frame, internal joint motor movement, muscle population primary reference representation, vectors}, month = {September}, owner = {martin}, pages = {2136-2139}, timestamp = {2009-06-26T15:25:39.000+0200}, title = {Muscle and Movement Representations in the Primary Motor Cortex}, volume = 285, year = 1999 }