网络成瘾倾向者对负性表情注意的脱离困难

采用Young编制的IAT量表从382名青少年中筛选出网络成瘾倾向者15名，非网络成瘾控制组被试18名，利用视觉搜索范式比较了两组被试对真人面孔和卡通面孔表情的注意偏向差异。结果表明：（1）在注意快速定向阶段，当要求被试快速准确地从中性面孔矩阵中搜索高兴或者愤怒面孔时，相较于控制组被试，网络成瘾倾向者搜索愤怒面孔更迅速，尤其表现为对卡通愤怒面孔的快速定向优势；（2）在注意的维持和脱离阶段，当在愤怒或高兴面孔矩阵中搜索中性面孔时，相较于控制组被试，网络成瘾倾向者在更具威胁性的真人愤怒面孔矩阵中最难脱离。结论：网络成瘾倾向者具有负性注意偏向特点，表现为对负性表情具有快速定向和解脱困难。且相较于控制组被试，网络成瘾倾向者对卡通面孔注意定向更快而更难从真人愤怒面孔矩阵中脱离，也说明了其注意偏向主要为对负性信息的注意解除困难。

Impaired Disengagement from Negative Emotional Faces in Youth with Internet Addiction

It has been consistently found that Internet Addiction Disorder(IAD) has deficits in realistic social interaction while not in online interaction. The ability to perceive human face is the basis of social activities. Realistic and online interaction deal with different kinds of faces, the former is usually realistic faces while the latter is usually cartoon faces.A visual search paradigm was used to investigate attentional biases to realisticistic and cartoon emotinal faces in individuals who suffer from Internet Addiction Disorder and in controls.Totally 382 adolescents were identified based on Young's Online Internet Addiction test (IAT), and were selected15 IADs, and 18 HCs.The results showed that IADs showed quick orientation to angry face in real face and cartoon face condition; especially with showing the fastest detecting the angry face from the cartoon face matrix. More importantly, compared with the HCs, IADs had difficult disengagement from angry faces only in real face condition. IADs showed more negative emotional attentional bias to realisticistic faces than cartoon faces, with taking a longer time to disengage from realistic faces matrix. The results suggested that difficult disengagement from threatening stimuliaffect IADs' attentional bias to realisticistic and cartoon emotional faces.