Brain Activity Related to Working Memory and Distraction in Children and Adults
| Autor: | Julian Macoveanu, Pernille J. Olesen, Jesper Tegnér, Torkel Klingberg |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Adult
Male Aging Adolescent Brain activity and meditation Cognitive Neuroscience education behavioral disciplines and activities Brain mapping Cellular and Molecular Neuroscience Memory Distraction Task Performance and Analysis medicine Humans Middle frontal gyrus Attention Evoked Potentials Cerebral Cortex Brain Mapping medicine.diagnostic_test Working memory Age Factors humanities Emotional lateralization Frontal lobe Female Psychology Functional magnetic resonance imaging Perceptual Masking Neuroscience psychological phenomena and processes |
| Zdroj: | Cerebral Cortex. 17:1047-1054 |
| ISSN: | 1460-2199 1047-3211 |
| DOI: | 10.1093/cercor/bhl014 |
| Popis: | In order to retain information in working memory (WM) during a delay, distracting stimuli must be ignored. This important ability improves during childhood, but the neural basis for this development is not known. We measured brain activity with functional magnetic resonance imaging in adults and 13-year-old children. Data were analyzed with an event-related design to isolate activity during cue, delay, distraction, and response selection. Adults were more accurate and less distractible than children. Activity in the middle frontal gyrus and intraparietal cortex was stronger in adults than in children during the delay, when information was maintained in WM. Distraction during the delay evoked activation in parietal and occipital cortices in both adults and children. However, distraction activated frontal cortex only in children. The larger frontal activation in response to distracters presented during the delay may explain why children are more susceptible to interfering stimuli. |
| Databáze: | OpenAIRE |
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