Maintenance versus Manipulation of Information Held in Working Memory: An Event-Related fMRI Study
@article{DEsposito1999MaintenanceVM,
title={Maintenance versus Manipulation of Information Held in Working Memory: An Event-Related fMRI Study},
author={Mark D’Esposito and Bradley R. Postle and Dana Ballard and J Lease},
journal={Brain and Cognition},
year={1999},
volume={41},
pages={66-86}
}One model of the functional organization of lateral prefrontal cortex (PFC) in primates posits that this region is organized in a dorsal/ventral fashion subserving spatial and object working memory, respectively. Alternatively, it has been proposed that a dorsal/ventral subdivision of lateral PFC instead reflects the type of processing performed upon information held in working memory. We tested this hypothesis using an event-related fMRI method that can discriminate among functional changes…
742 Citations
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Data from a series of event-related functional magnetic-resonance-imaging studies of delayed-response tasks that were designed to investigate the role of different regions of the prefrontal cortex during different working-memory component processes conclude that lateral PFC is anatomically organized according to the types of cognitive operations one performs when attempting to temporarily maintain and manipulate information.
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