Frequency bands in seeing and remembering: comparing ADHD and typically developing children

Pub Date : 2018-11-01 DOI:10.7358/NEUR-2018-024-FABI

R. Fabio, T. Caprì, N. Mohammadhasani, A. Gangemi, A. Gagliano, G. Martino

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引用次数: 31

Abstract

This study aimed to examine whether the visual working memory (VWM) phases, encoding and recall, may be impaired in children with Attention Deficit/Hyperactivity Disorder (ADHD). The second aim was to measure electroencephalographic (EEG) correlates of two types of encoding: efficient and inefficient encoding. 23 children with ADHD, age and sex matched with 23 non-ADHD subjects, were recruited. With reference to neurophysiological measures, an EEG was recorded before the WMT, during the encoding and finally during the recalling phases of the WMT. With reference to neuropsychological measures, we tested the encoding phase through eye-tracker measures and the recalling phase through the free recall span measure. In comparison to the control subjects, the ADHD group showed lower eye-tracker measurements and free recall span. They also showed lower alpha, beta and theta levels than the control group. Only in the efficient encoding, the control and ADHD groups showed similar beta bands. These results suggest that the ADHD group showed a decrease in the power of nearly all bands. 2 Department of Educational Technology, Faculty of Psychology and Education, Kharazmi University, Tehran, Iran R.A. Fabio T. Caprì N. Mohammadhasani A. Gangemi A. Gagliano G. Martino 98 Neuropsychological Trends – 24/2018 http://www.ledonline.it/neuropsychologicaltrends/ 98

查看原文

视觉和记忆的频带:比较多动症和正常发育的儿童

本研究旨在探讨视觉工作记忆(VWM)阶段，编码和回忆是否可能在注意缺陷/多动障碍(ADHD)儿童中受损。第二个目的是测量两种编码类型的脑电图(EEG)相关性:高效编码和低效编码。研究招募了23名患有ADHD的儿童，年龄和性别与23名非ADHD受试者相匹配。参照神经生理学的测量方法，在WMT之前、编码期间和最后在WMT的回忆阶段记录EEG。参照神经心理学的测量方法，采用眼动仪测量编码阶段和自由回忆广度测量回忆阶段。与对照组相比，ADHD组的眼动仪测量值和自由回忆时间都较低。与对照组相比，他们的α、β和α水平也较低。只有在有效编码中，对照组和多动症组显示出相似的β带。这些结果表明，多动症组几乎所有波段的力量都有所下降。2伊朗哈拉兹米大学心理与教育学院教育技术系R.A. Fabio T. Caprì N. Mohammadhasani A. Gangemi A. Gagliano G. Martino 98神经心理学趋势- 24/2018 http://www.ledonline.it/neuropsychologicaltrends/ 98

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