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• W3097438523 abstract "Abstract One of the hallmarks of anxiety disorders is impaired cognitive control, affecting working memory (WM). The dorsolateral prefrontal cortex (dlPFC) is critical for WM; however, it is still unclear how dlPFC activity relates to WM impairments in patients. Forty-one healthy volunteers and 32 anxiety (general and/or social anxiety disorder) patients completed the Sternberg WM paradigm during safety and unpredictable shock threat. On each trial, a series of letters was presented, followed by brief retention and response intervals. On low- and high-load trials, subjects retained the series (five and eight letters, respectively) in the original order, while on sort trials, subjects rearranged the series (five letters) in alphabetical order. We sampled the blood oxygenation level–dependent activity during retention using a bilateral anatomical dlPFC mask. Compared to controls, patients showed increased reaction time during high-load trials, greater right dlPFC activity and reduced dlPFC activity during threat. These results suggest that WM performance for patients and controls may rely on distinct patterns of dlPFC activity with patients requiring bilateral dlPFC activity. These results are consistent with reduced efficiency of WM in anxiety patients. This reduced efficiency may be due to an inefficient allocation of dlPFC resources across hemispheres or a decreased overall dlPFC capacity." @default.
• W3097438523 created "2020-11-09" @default.
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• W3097438523 date "2020-11-04" @default.
• W3097438523 modified "2023-10-14" @default.
• W3097438523 title "Patients with anxiety disorders rely on bilateral dlPFC activation during verbal working memory" @default.
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• W3097438523 doi "https://doi.org/10.1093/scan/nsaa146" @default.
• W3097438523 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7759210" @default.
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• W3097438523 hasPublicationYear "2020" @default.
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