How the frontal eye field can impose a saccade goal on superior colliculus neurons.
Saccades were electrically evoked from the frontal eye field (FEF) of two trained monkeys while saccade-cells were recorded from the intermediate layers of the superior colliculus (SC). We found that FEF microstimulation, eliciting saccades of a given vector, excited SC saccade-cells encoding the same vector and inhibited all others. Such a mechanism can prevent competing commands from arising simultaneously in different structures.
Schlag-Rey
M
M
Department of Anatomy and Cell Biology, University of California, Los Angeles 90024-1763.
Schlag
J
J
Dassonville
P
P
D000818:Animals; D004558:Electric Stimulation; D005071:Evoked Potentials; D000882:Haplorhini; D009474:Neurons / Q000502:physiology*; D009799:Ocular Physiological Phenomena; D012438:Saccades / Q000502:physiology*; D013477:Superior Colliculi / Q000502:physiology*; D014794:Visual Fields / Q000502:physiology*