Research Article

Experimental Brain Research

, Volume 174, Issue 4, pp 712-727

Responses of neurons in the lateral intraparietal area to central visual cues

  • Brian E. RussAffiliated withDepartment of Psychological and Brain Sciences and Center for Cognitive Neuroscience, Dartmouth College
  • , Amy M. KimAffiliated withDepartment of Psychological and Brain Sciences and Center for Cognitive Neuroscience, Dartmouth College
  • , Karilyn L. AbrahamsenAffiliated withDepartment of Psychological and Brain Sciences and Center for Cognitive Neuroscience, Dartmouth College
  • , Ruwan KiringodaAffiliated withDepartment of Psychological and Brain Sciences and Center for Cognitive Neuroscience, Dartmouth College
  • , Yale E. CohenAffiliated withDepartment of Psychological and Brain Sciences and Center for Cognitive Neuroscience, Dartmouth College Email author 

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Abstract

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.

Keywords

Parietal cortex Rhesus macaque Attention Vision