Cingulate cortical cells projecting to monkey frontal eye field and primary motor cortex.
We compared the distribution of cingulate cortical cells projecting to the frontal eye field (FEF) and primary motor cortex (MI) using a multiple retrograde labeling technique. Two fluorescent tracers were injected into physiologically identified FEF and MI in each monkey. The location of cells projecting to the forelimb area of MI served to identify the rostral (CMAr) and caudal (CMAc) cingulate motor areas. We found two foci of cells projecting to the FEF: rostral (CEFr) and caudal (CEFc) cingulate eye field. The CEFr was located rostral to the CMAr, while the CEFc was located rostro-ventral to the CMAc. Cells projecting to the FEF and MI scarcely overlapped, indicating that each area receives different sets of information from the cingulate cortex.
Wang
Yan
Y
Department of Physiology, Tohoku University School of Medicine, Seiryo-cho, Aobaku, Sendai 980-8575, Japan.
Matsuzaka
Yoshiya
Y
Shima
Keisetsu
K
Tanji
Jun
J
D000578:Amidines / Q000378:metabolism; D000818:Animals; D001931:Brain Mapping; D002452:Cell Count / Q000379:methods; D004558:Electric Stimulation / Q000379:methods; D005123:Eye / Q000294:innervation*; D005133:Eye Movements / Q000502:physiology / Q000528:radiation effects; D006179:Gyrus Cinguli / Q000166:cytology* / Q000502:physiology; D008252:Macaca fascicularis; D009044:Motor Cortex / Q000502:physiology*; D009434:Neural Pathways / Q000502:physiology; D009474:Neurons / Q000502:physiology*
D000578:Amidines; C031455:diamidino compound 253-50; C037945:diamidino yellow