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- W2066659341 abstract "The prefrontal cortex is known to represent different types of information in working memory. Contrasting theories propose that the dorsal and ventral regions of the lateral prefrontal cortex are innately specialized for the representation of spatial and nonspatial information, respectively (Goldman-Rakic, 1996), or that the two regions are shaped by the demands of cognitive tasks imposed on them (Miller, 2000). To resolve this issue, we recorded from neurons in the two regions, before and at multiple stages of training monkeys on visual working memory tasks. Before training, substantial functional differences were present between the two regions. Dorsal prefrontal cortex exhibited higher overall responsiveness to visual stimuli and higher selectivity for spatial information. After training, stimulus selectivity generally decreased, although dorsal prefrontal cortex retained higher spatial selectivity regardless of task performed. Ventral prefrontal cortex appeared to be affected to a greater extent by the nature of the task. Our results indicate that regional specialization for stimulus selectivity is present in the primate prefrontal cortex regardless of training. Dorsal areas of the prefrontal cortex are inherently organized to represent spatial information, and training has little influence on this spatial bias. Ventral areas are biased toward nonspatial information, although they are more influenced by training both in terms of activation and changes in stimulus selectivity." @default.
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- W2066659341 date "2011-04-27" @default.
- W2066659341 modified "2023-10-10" @default.
- W2066659341 title "Stimulus Selectivity in Dorsal and Ventral Prefrontal Cortex after Training in Working Memory Tasks" @default.
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- W2066659341 doi "https://doi.org/10.1523/jneurosci.6798-10.2011" @default.
- W2066659341 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3103869" @default.
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