TY - RPRT TI - Systematic changes in motor cortex cell activity with arm posture during directional isometric force generation. AU - Lauren E Sergio AU - John F Kalaska PY - 2003 DO - 10.1152/jn.00016.2002 UR - https://pubmed.ncbi.nlm.nih.gov/12522173/ ID - 12522173 ER -