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• W1966660644 abstract "To study how event-related brain potentials (ERPs) and underlying cortical mechanisms of selective attention change from childhood to old age, we investigated lifespan age differences in ERPs during an auditory oddball task in four age groups including 24 younger children (9-10 years), 28 older children (11-12 years), 31 younger adults (18-25), and 28 older adults (63-74 years). In the Unattend condition, participants were asked to simply listen to the tones. In the Attend condition, participants were asked to count the deviant stimuli. Five primary ERP components (N1, P2, N2, P3 and N3) were extracted for deviant stimuli under Attend conditions for lifespan comparison. Furthermore, Mismatch Negativity (MMN) and Late Discriminative Negativity (LDN) were computed as difference waves between deviant and standard tones, whereas Early and Late Processing Negativity (EPN and LPN) were calculated as difference waves between tones processed under Attend and Unattend conditions. These four secondary ERP-derived measures were taken as indicators for change detection (MMN and LDN) and selective attention (EPN and LPN), respectively. To examine lifespan age differences, the derived difference-wave components for attended (MMN and LDN) and deviant (EPN and LPN) stimuli were specifically compared across the four age groups.Both primary and secondary ERP components showed age-related differences in peak amplitude, peak latency, and topological distribution. The P2 amplitude was higher in adults compared to children, whereas N2 showed the opposite effect. P3 peak amplitude was higher in older children and younger adults than in older adults. The amplitudes of N3, LDN, and LPN were higher in older children compared with both of the adult groups. In addition, both P3 and N3 peak latencies were significantly longer in older than in younger adults. Interestingly, in the young adult sample P3 peak amplitude correlated positively and P3 peak latency correlated negatively with performance in the Identical Picture test, a marker measure of fluid intelligence.The present findings suggest that patterns of event-related brain potentials are highly malleable within individuals and undergo profound reorganization from childhood to adulthood and old age." @default.
• W1966660644 created "2016-06-24" @default.
• W1966660644 creator A5004524827 @default.
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• W1966660644 creator A5061691494 @default.
• W1966660644 creator A5084761067 @default.
• W1966660644 date "2008-01-31" @default.
• W1966660644 modified "2023-10-17" @default.
• W1966660644 title "Electrophysiological correlates of selective attention: A lifespan comparison" @default.
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• W1966660644 doi "https://doi.org/10.1186/1471-2202-9-18" @default.
• W1966660644 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/2270855" @default.
• W1966660644 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/18237433" @default.
• W1966660644 hasPublicationYear "2008" @default.
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