网络词语与非网络词语的知觉差异:时间知觉、空间距离知觉与知觉范围

根据具身认知理论,人们的认知会受到身体活动的影响。网络环境下人的身体活动受到限制,因而其认知活动与非网络环境存在很大的差异。本研究目的在于考察人们对网络词语与非网络的日常词语的时间知觉,空间距离知觉与知觉范围是否有差异。结果发现被试对网络词语的时间知觉更长;网络词语的空间距离感与日常词语没有显著差异;在启动网络词语之后,被试的知觉范围缩小,对中心刺激的反应显著快于边缘刺激。本研究发现了网络词语加工在时间知觉和知觉范围上的变化。     

网络游戏过度使用者的注意偏向及其ERP特征

网络成瘾与吸烟、饮酒等物质成瘾具有许多相似性,因此也可能存在类似的认知偏向和神经机制。本研究采用事件相关电位技术,通过点探测范式研究网络游戏过度使用者的注意偏向问题。结果显示：（1）与一般使用者相比,网络游戏过度使用者存在明显的注意偏向;（2）游戏图片对网络游戏过度使用者诱发的P2的振幅小于一般使用者;（3）网络游戏过度使用者对游戏图片位置上出现的探测点的加工（P1）较早。结果提示,网络游戏过度使用者的注意偏向存在特定的脑电模式。     

Cybersecurity and Authentication: The Marketplace Role in Rethinking Anonymity – Before Regulators Intervene

Anonymous speech plays a fundamental role in America’s political history. However, that long tradition of anonymous communications faces an image problem in today’s age of spam, computer viruses, spyware, denial-of-service attacks on websites, and identity theft. The criminals and hackers who perpetrate these insults on the commercial Internet are, for the most part, anonymous; we simply do not know the identities of these bad guys. Yet, the promise of anonymous communications is vital to the preservation of political liberty across the globe. Therefore, how should we regard anonymity in a digital age? And how should we strike the right balance between security and anonymity online? To begin, we should not consider the outlawing of anonymous communications as the answer to today’s cybersecurity threats. Commercial sector “regulation” of anonymity, so to speak, can play a significant role in combating these problems. Increasingly, online authentication has become important to both personal security and to cybersecurity in general. Some recent proposals toward bolstering security have included greater authentication of the source of emails to deal with spam and the requirement that those who conduct transactions online reveal their identities – seeming violations of online culture. Policymakers also want a say in the matter, and as the process unfolds, they might feel increasingly tempted to intervene whenever issues impacting privacy and authentication emerge in debates over telecommunications, intellectual property, biometrics, cybersecurity, and more. Regardless, government should not strip us of our anonymity online. Cybersecurity concerns may instead call for the marketplace – not regulators – to deal with the fact that many threats stem from that very lack of authentication. The inclusion of greater authentication standards into online services by private vendors will lead to their working in concert in unprecedented ways that may draw attention from regulatory and antitrust authorities. But these private, experimental efforts have no implications for political liberty – nor are they anticompetitive. Private solutions are the only real hope we have for decreasing cybersecurity threats, given that previous government efforts to regulate the Internet – for example, outlawing spam in 2004 – have not lived up to expectations. Political anonymity and commercial anonymity are not the same thing, and the distinction requires better appreciation. Over the coming tumultuous period of dealing with online threats, policymakers should allow the experimentation necessary to cope with today’s lack of online authentication to proceed with minimal interference.     

Is Therapist Support Needed? Comparing Therapist- and Self-Guided Internet-Based CBT for Somatic Symptom Distress (iSOMA) in Emerging Adults

Persistent somatic symptoms of varying etiology are very common in emerging adults and can lead to distress and impairment. Internet-delivered interventions could help to prevent the burden and chronicity of persistent somatic symptoms. This study investigated the impact of therapist guidance on the effectiveness of a cognitive-behavioral Internet intervention for somatic symptom distress (iSOMA) in emerging adults, as a secondary analysis of a two-armed randomized controlled trial. We included 149 university students (83.2% female, 24.60 yrs) with varying degrees of somatic symptom distress who were either allocated to the 8-week intervention with regular, written therapeutic guidance (iSOMA guided) or to the control group (waitlist), which was afterwards crossed over to receive iSOMA with guidance-on-demand (iSOMA-GoD). Primary outcomes were somatic symptom distress (assessed by the PHQ-15) and psychobehavioral symptoms of the somatic symptom disorder (assessed by the SSD-12) at pre- and post-treatment. Secondary outcomes included depression, anxiety, and disability. Both treatments showed statistically significant pre-post improvements in primary (iSOMA-guided: d = 0.86–0.92, iSOMA-GoD: d = 0.55–0.63) and secondary outcomes. However, intention-to-treat analysis revealed non-significant between-group effects for all outcomes (ps ≥ .335), after controlling for confounding variables, and effect sizes were marginal (d = −0.06 to 0.12). Overall, our findings indicate that Internet-delivered cognitive behavioral therapy with regular guidance is not unequivocally superior to guidance-on-demand in alleviating somatic symptom distress and associated psychopathology in emerging adults. As a next step, non-inferiority studies are needed to test the robustness of these findings and their impact on clinical populations.     

闯入性思维对网络成瘾的影响:一个有调节的中介模型

本研究基于有限自制力理论考察闯入性思维对网络成瘾的影响及自我控制的中介作用和认知重评的调节作用。以371名大学生为被试,采用闯入性思维量表、自我控制量表、认知重评量表和网络成瘾量表进行测试,结果发现:(1)闯入性思维和自我控制呈显著负相关,与网络成瘾呈显著正相关;自我控制与网络成瘾呈显著负相关。(2)闯入性思维通过自我控制的中介作用对网络成瘾产生影响。(3)“闯入性思维—自我控制—网络成瘾”这一中介效应的前半段受到认知重评的影响;与低认知重评的个体相比,闯入性思维对高认知重评个体自我控制的影响更小。表达抑制不能调节闯入性思维对自我控制的影响。本研究的结果表明,闯入性思维会通过降低自我控制来增加网络成瘾的风险,而且认知重评会削弱闯入性思维对自我控制的影响。     

社会阶层与大学生网络利他行为:一个有调节的中介模型

采用问卷法对813名大学生进行调查,探讨社会阶层、公正世界信念、网络社会支持与大学生网络利他行为之间的关系及内在作用机制。结果发现：（1）客观社会阶层不能显著预测网络利他行为,主观社会阶层能正向预测网络利他行为;（2）公正世界信念在主观社会阶层与网络利他行为的关系中起部分中介作用;（3）网络社会支持调节了公正世界信念的中介作用。对于高网络社会支持个体,公正世界信念起部分中介作用;而对于低网络社会支持个体,公正世界信念的中介效应不显著,主观社会阶层对网络利他行为只有直接效应。