Corticostriatal input zones from the supplementary motor area overlap those from the contra- rather than ipsilateral primary motor cortex.
To investigate the degree of convergence of corticostriatal inputs from the primary motor cortex (MI) and the supplementary motor area (SMA), we analyzed the extent to which corticostriatal inputs from forelimb representations of these motor-related areas spatially overlap in the macaque monkey. Of particular interest was that corticostriatal input zones from SMA overlapped those from MI of the contralateral hemisphere more extensively than from MI of the ipsilateral hemisphere.
Takada
M
M
Department of Morphological Brain Science, Faculty of Medicine, Kyoto University, Kyoto 606-01, Japan. takada@mbs.med.kyoto-u.ac.jp
Tokuno
H
H
Nambu
A
A
Inase
M
M
D000818:Animals; D001931:Brain Mapping; D003342:Corpus Striatum / Q000502:physiology*; D005260:Female; D005552:Forelimb / Q000294:innervation; D007839:Functional Laterality / Q000502:physiology*; D008251:Macaca; D009044:Motor Cortex / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology