Top-down control of MEG alpha-band activity in children performing Categorical N-Back Task

被引：13

作者：

Ciesielski, Kristina T. ^{[1
,2
]}

Ahlfors, Seppo P. ^{[1
,3
]}

Bedrick, Edward J. ^{[4
]}

Kerwin, Andra A. ^{[1
]}

Hamalainen, Matti S. ^{[1
,3
]}

机构：

[1] Harvard Univ, Massachusetts Gen Hosp, Sch Med, MGH MIT HMS Athinoula A Martinos Ctr Biomed Imagi, Charlestown, MA 02129 USA

[2] Univ New Mexico, Dept Psychol, Albuquerque, NM 87131 USA

[3] Harvard MIT Div Hlth Sci & Technol, Cambridge, MA 02135 USA

[4] Univ New Mexico, Hlth Sci Ctr, Dept Epidemiol, Albuquerque, NM 87131 USA

来源：

NEUROPSYCHOLOGIA | 2010年 / 48卷 / 12期

关键词：

Top down control of alpha band activity; Cognitive development; Dorsal visual cortical network; Visual Categorical N Back Task; Magnetoencephalography; HUMAN VISUAL-CORTEX; REACTION TIME TASKS; WORKING-MEMORY; PARIETAL CORTEX; ATTENTION; RHYTHMS; DESYNCHRONIZATION; MODULATION; DORSAL; ELECTROENCEPHALOGRAM;

D O I：

10.1016/j.neuropsychologia.2010.08.006

中图分类号：

B84 [心理学]; C [社会科学总论]; Q98 [人类学];

学科分类号：

03 ; 0303 ; 030303 ; 04 ; 0402 ;

摘要：

Top-down cognitive control has been associated in adults with the prefrontal-parietal network In children the brain mechanisms of top-down control have rarely been studied We examined developmental differences in top-down cognitive control by monitoring event-related desynchronization (ERD) and event-related synchronization (ERS) of alpha-band oscillatory activity (8-13 Hz) during anticipation target detection and post-response stages of a visual working memory task Magnetoencephalography (MEG) was used to record brain oscillatory activity from healthy 10-year-old children and young adults performing the Categorical N-Back Task (CNBT) Neuropsychological measures assessing frontal lobe networks were also acquired Whereas adults showed a modulation of the ERD at the anticipatory stages of CNBT and ERS at the post-response stage children displayed only some anticipatory modulation of ERD but no ERS at the post-response stage with alpha-band remaining at a desynchronized state Since neuropsychological and prior neuroimaging findings indicate that the prefrontal-parietal networks are not fully developed in 10-year olds and since the children performed as well as the adults on CNBT and yet displayed different patterns of ERD/ERS we suggest that children may be using different top-down cognitive strategies and hence different developmentally apt neuronal networks (C) 2010 Elsevier Ltd All rights reserved

引用

页码：3573 / 3579

页数：7

共 71 条

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