Distributions of Visual Receptive Fields from Retinotopic to Craniotopic Coordinates in the Lateral Intraparietal Area and Frontal Eye Fields of the Macaque  

作　　者：Lin Yang Min Jin Cong Zhang Ning Qian Mingsha Zhang 

机构地区：[1]Key Laboratory of Cognitive Neuroscience and Learning,Division of Psychology,Beijing Normal University,Beijing 100875,China [2]Institute of Neuroscience,Key Laboratory of Primate Neurobiology,CAS Center for Excellence in Brain Science and Intelligence Technology,Chinese Academy of Sciences,Shanghai 200031,China [3]Department of Neuroscience and Zuckerman Institute,Columbia University,New York 10027,USA

出　　处：《Neuroscience Bulletin》2024年第2期171-181,共11页神经科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(32030045,32061143004,and 31871078);STI2030-Major Projects+2021ZD0204300.

摘　　要：Even though retinal images of objects change their locations following each eye movement,we perceive a stable and continuous world.One possible mechanism by which the brain achieves such visual stability is to construct a craniotopic coordinate by integrating retinal and extraretinal information.There have been several proposals on how this may be done,including eye-position modulation(gain fields)of retinotopic receptive fields(RFs)and craniotopic RFs.In the present study,we investigated coordinate systems used by RFs in the lateral intraparietal(LIP)cortex and frontal eye fields(FEF)and compared the two areas.We mapped the two-dimensional RFs of neurons in detail under two eye fixations and analyzed how the RF of a given neuron changes with eye position to determine its coordinate representation.The same recording and analysis procedures were applied to the two brain areas.We found that,in both areas,RFs were distributed from retinotopic to craniotopic representations.There was no significant difference between the distributions in the LIP and FEF.Only a small fraction of neurons was fully craniotopic,whereas most neurons were between the retinotopic and craniotopic representations.The distributions were strongly biased toward the retinotopic side but with significant craniotopic shifts.These results suggest that there is only weak evidence for craniotopic RFs in the LIP and FEF,and that transformation from retinotopic to craniotopic coordinates in these areas must rely on other factors such as gain fields.

关 键 词：Reference frames Eye-centered Headcentered Visual stability 

分 类 号：Q954.52[生物学—动物学]