Responses of neurons in the lateral intraparietal area to central visual cues.
Goal-directed behavior is characterized by flexible stimulus-action mappings. The lateral intraparietal area (area LIP) contains a representation of extra-personal space that is used to guide goal-directed behavior. To examine further how area LIP contributes to these flexible stimulus-action mappings, we recorded LIP activity while rhesus monkeys participated in two different cueing tasks. In the first task, the color of a central light indicated the location of a monkey's saccadic endpoint in the absence of any other visual stimuli. In the second task, the color of a central light indicated which of two visual targets was the saccadic goal. In both tasks, LIP activity was modulated by these non-spatial cues. These observations further suggest a role for area LIP in mediating endogenous associations that link stimuli with actions.
Russ
Brian E
BE
Department of Psychological and Brain Sciences and Center for Cognitive Neuroscience, Dartmouth College, 6207 Moore, Hanover, NH 03755, USA.
Kim
Amy M
AM
Abrahamsen
Karilyn L
KL
Kiringoda
Ruwan
R
Cohen
Yale E
YE
D000200:Action Potentials / Q000502:physiology; D000704:Analysis of Variance; D000818:Animals; D001288:Attention / Q000502:physiology*; D001522:Behavior, Animal; D002755:Choice Behavior / Q000502:physiology; D003463:Cues; D005260:Female; D007839:Functional Laterality; D008253:Macaca mulatta; D009474:Neurons / Q000502:physiology*; D010296:Parietal Lobe / Q000166:cytology*; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time / Q000502:physiology; D012438:Saccades; D014785:Vision, Ocular / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology