13-18岁青少年表象能力的发展和脑电α波的关系

本研究以188名1318岁青少年为研究对象,采用脑电波超慢涨落分析技术(简称ET),对其12导联脑电波(EEG)进行了记录和分析,并对其表象能力进行了考察。重点探讨了表象能力的发展与脑α波特点之间的关系。结果表明:(1)13～18岁青少年随年龄增长,对表象任务正确反应需要的时间逐渐下降,其反应时变化的转折时期为16岁;(2)男女生之间差异不显著;(3)在句图匹配和心理旋转作业中好组10Hzα波的比率均高于差组,其它频率差异不显著,说明表象能力好组与占主频的α波相联系。

The Developmental Features of Imagery Ability and Its Relationship with electroencephalography (EEG):A Study of Adolescent Aged from 13 to 18

In the present work,12-channel electroencephalography(EEG) of 188 adolescent aged from 13 to 18 were recorded and analyzed by Encephalofluctuography Technology (ET).And all subjects completed two imagery tasks including sentence-figure matching and mental rotation.The research put emphasis on the developmental characteristics of the imagery ability and its relationships with electroencep halograp by(EEG).The results obtained were as follows:(i) With the increase of the age,the time decreased when 13 to 18 age groups reacted correctly to the imagery tasks.The turning period of the reaction is at the age of 16 writh no marked difference for the boys and girls.(ii) In twa imagery tasks of sentence-figure matching and mental rotation,10Hz α brain powers in the good group of imagery ability are hyper than that in the low group of imagery ability, but it showed no significant difference in other α powers frequency of different groups with different ages.