Journal
NEUROSCIENCE RESEARCH
Volume 53, Issue 1, Pages 1-7Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neures.2005.05.005
Keywords
prefrontal cortex; supplementary eye field; presupplementary motor area; primate; retrograde labeling
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We examined the location and spatial distribution of prefrontal cortical (PF) cells projecting to the supplementary eye field (SEF) and presupplementary motor area (pre-SMA) using a double retrograde-labeling technique in monkeys (Macaca fuscata). The SEF and pre-SMA were physiologically identified based on the findings of intracortical microstimulation and single cell recordings. Two fluorescent tracers, diamidino yellow and fast blue, were injected into the SEF and pre-SMA of each monkey. Retrogradely labeled cells in the PF were plotted with an automated plotting system. The cells projecting to the SEF and pre-SMA were mainly distributed in the upper and lower banks of the principal sulcus (area 46), with little overlap. Cells projecting to the SEF, but not to the pre-SMA, were observed in areas 8a, 8b, 9, 12, and 45. These findings suggest that the SEF and pre-SMA receive different sets of information from the PF cells. (c) 2005 Elsevier Ireland Ltd and the Japan Neuroscience Society. All rights reserved.
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