Journal
DEVELOPMENTAL COGNITIVE NEUROSCIENCE
Volume 18, Issue -, Pages 78-88Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dcn.2016.02.004
Keywords
Working memory; Working memory filtering; Basal ganglia; Adolescence
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Funding
- National Institute of Mental Health [K01-MH092625, K01-MH092555]
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While most measures of working memory (WM) performance have been shown to plateau by mid adolescence and developmental changes in fronto-parietal regions supporting WM encoding and maintenance have been well characterized, little is known about developmental variation in WM filtering. We investigated the possibility that the neural underpinnings of filtering in WM reach maturity later in life than WM function without filtering. Using a cued WM filtering task (McNab and Klingberg, 2008), we investigated neural activity during WM filtering in a sample of 64 adults and adolescents. Regardless of age, increases in WM activity with load were concentrated in the expected fronto-parietal network. For adults, but not adolescents, recruitment of the basal ganglia during presentation of a filtering cue was associated with neural and behavioral indices of successful filtering, suggesting that WM filtering and related basal ganglia function may still be maturing throughout adolescence and into adulthood. (C) 2016 The Authors. Published by Elsevier Ltd.
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