Journal article

Coding of spatial attention priorities and object features in the macaque lateral intraparietal cortex

Ekaterina Levichkina, Yuri B Saalmann, Trichur R Vidyasagar



Primate posterior parietal cortex (PPC) is known to be involved in controlling spatial attention. Neurons in one part of the PPC, the lateral intraparietal area (LIP), show enhanced responses to objects at attended locations. Although many are selective for object features, such as the orientation of a visual stimulus, it is not clear how LIP circuits integrate feature-selective information when providing attentional feedback about behaviorally relevant locations to the visual cortex. We studied the relationship between object feature and spatial attention properties of LIP cells in two macaques by measuring the cells' orientation selectivity and the degree of attentional enhancement while p..

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Awarded by Australian National Health and Medical Research Council

Awarded by Brain and Behavior Research Foundation

Awarded by Whitehall Foundation

Funding Acknowledgements

This work was supported by project grants (251600, 454676 and 628668) from the Australian National Health and Medical Research Council to T.R.V. Y.B.S. is supported by grants from the Brain and Behavior Research Foundation (23017) and Whitehall Foundation (2015-12-71). We thank Dr. Ivan Pigarev for taking part in some of the early studies.