Effects of Stimulus-Response Compatibility on Neural Selection in Frontal Eye Field

We investigated the neural basis of visual and saccade selection in the frontal eye field of macaque monkeys using a singleton search task with prosaccade or antisaccade responses. Two types of neurons were distinguished. The first initially selected the singleton even in antisaccade trials, althoug...

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Bibliographic Details
Published in:Neuron (Cambridge, Mass.) Mass.), 2003-05, Vol.38 (4), p.637-648
Main Authors: Sato, Takashi R., Schall, Jeffrey D.
Format: Article
Language:English
Subjects:
Animals
Attention - physiology
Brain Mapping
Eye movements
Frontal Lobe - cytology
Frontal Lobe - physiology
Macaca radiata
Neurons
Neurons - physiology
Orientation - physiology
Photic Stimulation
Reaction Time - physiology
Response time
Saccades - physiology
Standard deviation
Visual Fields - physiology
Visual Perception - physiology
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Summary:We investigated the neural basis of visual and saccade selection in the frontal eye field of macaque monkeys using a singleton search task with prosaccade or antisaccade responses. Two types of neurons were distinguished. The first initially selected the singleton even in antisaccade trials, although most subsequently selected the endpoint of the saccade. The time the singleton was located was not affected by stimulus-response compatibility and did not vary with reaction time across trials. The second type of neuron selected only the endpoint of the saccade. The time of endpoint selection by these neurons accounted for most of the effect of stimulus-response compatibility on reaction time. These results indicate that visual selection and saccade selection are different processes.
ISSN:0896-6273
1097-4199
DOI:10.1016/S0896-6273(03)00237-X