[Cell activities in primate areas F2 and F4 of the monkey during sequential motor task guided by recognition of figures].
Single-unit activities were recorded in the area F2 of dorsal premotor cortex (PMd) and area F4 of ventral premotor cortex (PMv) while a monkey was performing a sequential motor task guided by recognition of figures (FRS). During the cue period, 52% (39/75) and 16.9% (13/77) of the task-related neurons exhibited changes in activities in the areas F2 and F4, respectively. During the touch period, 51% (38/75) and 87% (67/77) of the task-related neurons exhibited changes in activities in the areas F2 and F4, respectively. There were more cells responding to the cue signal in F2 than in F4 (X(2)  20.8, P<0.005). In contrast, there were more cells responding during the touch period in F4 than in F2 (X(2)  23.5, P<0.005). The present findings indicate that a lot of neurons in the PMd and PMv are differently involved in the FRS task.
Shen
L M
LM
Shanghai Institute of Brain Research, Chinese Academy of Sciences, Shanghai 200031, China. Shenlimin@hotmail.com
Chen
Y C
YC
D000818:Animals; D004594:Electrophysiology; D005260:Female; D008253:Macaca mulatta; D009044:Motor Cortex / Q000502:physiology*; D009474:Neurons / Q000502:physiology; D010364:Pattern Recognition, Visual; D013647:Task Performance and Analysis