Institute of Psychology Chinese Academy of Sciences The

Institute of Psychology Chinese Academy of Sciences 电子媒体使用对幼儿执行功能的影响 The Effect of Media Use on

Introduction Media use among Chinese children • 72. 8% children aged 8~18 had their

Background • Internet use: 98. 1% – Children younger than 10 ys: 72. 0%

• Electronic media – especially influential to children during periods of rapid brain

Introduction • Executive Function, EF – a family of top-down mental processes that aid

Introduction The Development of EF p Executive function is orchestrated by activity within the

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Institute of Psychology Chinese Academy of Sciences 电子媒体使用对幼儿执行功能的影响 The Effect of Media Use on Children’s Executive Function 朱莉琪中科院心理所华中师范大学 2018. 10

Introduction Media use among Chinese children • 72. 8% children aged 8~18 had their own Smartphone (China youth Internet program, 2011). • 94. 1% children aged 4～ 16 watched TV, with an average of 1. 16 hours per day (Zhen, Zhang, 2011). • 72. 69% preschoolers' family in Shanghai have i. Pad, 78. 16% of children who had ipad spend 0 ～ 1. 5 h to use the ipad per day (Dai, 2013). 2021/9/7 2

Background • Internet use: 98. 1% – Children younger than 10 ys: 72. 0% – Preschool children: 27. 9% – Left behind children: 80. 9% • Wechat 84. 6%。季�民 , 沈杰, �斌� , 季琳. (2018). 中国未成年人互联网运用报告(2017～ 2018). 社会科学文献出版社. 2021/9/7 3

• Electronic media – especially influential to children during periods of rapid brain development(Christakis et al. , 2012; Bush and Boyce, 2014) – powerful impacts on the development of social emotional competencies (e. g. , Babaroglu, 2013) and cognitive capacities including executive function (EF) (e. g. , Lillard and Peterson, 2011; Nathanson et al. , 2014). 2021/9/7 4

Introduction • Executive Function, EF – a family of top-down mental processes that aid in the monitoring and control of thought and action (Lezak, 1995; Mesulam, 2002). – Core EFs include Inhibition, working memory, and cognitive flexibility (Diamond, 2013). 2021/9/7 5

Introduction The Development of EF p Executive function is orchestrated by activity within the prefrontal cortex and develops at an unprecedented rate during the preschool period. （Tsujimoto , 2008)