Brain oscillatory 4-30 Hz electroencephalogram responses in adolescents during a visual memory task

被引：22

作者：

Krause, Christina M. ^{[1
]}

Pesonen, Mirka ^{[1
]}

Hamalainen, Heikki ^{[2
,3
]}

机构：

[1] Univ Helsinki, Inst Behav Sci, FIN-00014 Helsinki, Finland

[2] Univ Turku, Ctr Cognit Neurosci, SF-20500 Turku, Finland

[3] Univ Turku, Dept Behav Sci & Philosophy, SF-20500 Turku, Finland

来源：

NEUROREPORT | 2010年 / 21卷 / 11期

基金：

芬兰科学院;

关键词：

alpha; beta; brain oscillations; electroencephalogram; event-related desynchronization/event-related synchronization; memory; theta; visual adolescents; EVENT-RELATED DESYNCHRONIZATION; THETA OSCILLATIONS; SEARCH TASK; EEG ALPHA; CHILDREN; LOAD; SYNCHRONIZATION; AGE;

D O I：

10.1097/WNR.0b013e32833bfcbb

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

Brain oscillatory responses of the 4-30 Hz electroencephalogram frequencies were assessed in 12 adolescents (mean age 14 years) during a visual N-back task with four memory load conditions (0-back, 1-back, 2-back, and 3-back). Theta frequency range (approximately 4-6 Hz) responses were elicited in all memory load conditions. The magnitude and duration of alpha frequency range (approximately 8-12 Hz) responses varied as a function of memory load. Beta frequency range (approximately 15-20 Hz) responses were modulated by both task difficulty and cognitive strategy. The differences between the memory load conditions were most prominent between the 0-back and 1-back conditions in the approximately 10 and 20 Hz electroencephalogram frequencies. Dynamic alpha and beta rhythm brain oscillatory responses are related to the cognitive processes in adolescence. NeuroReport 21:767-771 (C) 2010 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins.

引用

页码：767 / 771

页数：5

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