Cortical and Subcortical Contributions to Long-Term Memory-Guided Visuospatial Attention.

ABSTRACT: Long-term memory (LTM) helps to efficiently direct and deploy the scarce resources of the attentional system; however, the neural substrates that support LTM-guidance of visual attention are not well understood. Here, we present results from fMRI experiments that demonstrate that cortical and subcortical regions of a network defined by resting-state functional connectivity are selectively recruited for LTM-guided attention, relative to a similarly demanding stimulus-guided attention paradigm that lacks memory retrieval and relative to a memory retrieval paradigm that lacks covert deployment of attention. Memory-guided visuospatial attention recruited posterior callosal sulcus, posterior precuneus, and lateral intraparietal sulcus bilaterally. Additionally, 3 subcortical regions defined by

SUBMITTER: Rosen ML 

PROVIDER: S-EPMC6041969 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature