Causal relationship between Internet use and social capital in Japan

Based on longitudinal data collected from a random sample panel survey, the present study found that different types of Internet usage are differentially related to social networks. The more social ties people have, the more likely they are to use personal computer (PC) email, and the use of PC email increases social ties. The results also show that the more supportive ties people have, the more they tend to use mobile phone email; however, it does not prove the use of mobile phone email increases supportive ties. However, participation in an online community is not related social networks. These findings suggest that PC email may increase the size of personal social networks, whereas mobile phone email is useful in maintaining existing strong ties which provide social support.     

How do shy people expand their social networks? Using social surrogates as a strategy to expand one's network

The authors examined the use of social surrogates by shy people to expand their social network when entering a new environment, following Bradshaw's social surrogate hypothesis. The authors conducted a panel survey of 70 friendship pairs of students 7 months after they entered university. The results revealed that when a friend acted as a surrogate, the shy students extended their joint networks more. In contrast, not-shy students extended their networks regardless of whether a friend acted as a surrogate. These results indicate that even shy people can adjust indirectly to new social circumstances because they can expand their social networks by using a close friend as a surrogate.     

Identification and integration of sensory modalities: Neural basis and relation to consciousness

A key question in studying consciousness is how neural operations in the brain can identify streams of sensory input as belonging to distinct modalities, which contributes to the representation of qualitatively different experiences. The basis for identification of modalities is proposed to be constituted by self-organized comparative operations across a network of unimodal and multimodal sensory areas. However, such network interactions alone cannot answer the question how sensory feature detectors collectively account for an integrated, yet phenomenally differentiated experiential content. This problem turns out to be different from, although related to, the binding problem. It is proposed that the neural correlate of an enriched, multimodal experience is constituted by the attractor state of a dynamic associative network. Within this network, unimodal and multimodal sensory maps continuously interact to influence each other’s attractor state, so that a feature change in one modality results in a fast re-coding of feature information in another modality. In this scheme, feature detection is coded by firing-rate, whereas firing phase codes relational aspects.     

Testing neural network models of personality

Attempts to develop neural network models of personality have not generally used empirical data for training and validating the models. Two illustrations are provided which demonstrate the incorporation of empirical data into the modeling of behavioral responses to situations varying in closeness and hierarchical role relationships. An event-contingent recording procedure is utilized to obtain data from the same participant in multiple events for multiple situations. This data is then used in the training and validation of the neural networks. The first illustration models dominant and submissive behaviors in response to situations varying in social role status. The second illustration models agreeable and quarrelsome behaviors in response to situations varying in closeness and gender of the interaction partner. The predictions from both neural network models are consistent with previous research.     

Optimism and resources: Effects on each other and on health over 10 years

Dispositional optimism may be associated with growth of social and status resources by virtue of optimists' greater persistence and better performance. Conversely, resource growth may give people a more positive view of their future and increase optimism. Changes in dispositional optimism and resources over 10 years were examined in former law students (N = 61). More optimistic first-year law students made more money 10 years later, but income did not predict later optimism. More optimistic students did not have larger social networks 10 years later, but increases in social network size predicted increased optimism. These changes predicted mental and physical health. Dispositional optimism was less stable than many personality traits (r = .35), potentially because it is responsive to resource change.     

内群体情绪强度的系统动力学模型

选取自愿参加本实验的某高校20个教学班级的686人为被试,基于社会网络（social network）的系统动力学（system of dynamic）建模的方法建立了内群体情绪强度的系统动力学模型,并采用心理实验的方法对模型的合理性进行了检验,结果表明,所建立的模型能够与实验数据较好拟合,能较合理地对内群体情绪强度变化的动力学规律进行刻画。此外,通过与以往同类研究对比,本研究还发现：内群体情绪强度的减弱滞后于群体内群体情绪传播的减弱。     

高职生自主学习能力与网络依赖程度关系的研究

在问卷调查法的基础上,本研究对高职生自主学习能力与网络依赖程度进行多种维度的相关分析,并通过多重线性回归分别对突出影响网络依赖及其四种维度的自主学习因子进行考察.结果表明:高职生自主学习能力和网络依赖程度之间存在十分密切的关系,其中学习策略分量表中的学习求助因子和学习管理因子对高职生的网络依赖有最大的影响.     

The Big Five personality traits,Big Two metatraits and social media: A meta-analysis

This article reported a meta-analysis of the relationships between social network site use and the Big Five (neuroticism, extraversion, openness, agreeableness, and conscientiousness) as well as the Big Two (plasticity and stability) personality meta-traits. A random effect meta-analysis model was used to calculate the meta-results of Big Five. Extraversion and openness were the strongest predictor of SNS activities (e.g. gaming, SNS interaction, etc.), while conscientiousness, neuroticism, and agreeableness only correlated with a few of the SNS activities. A meta-analytical structural equation model further demonstrated that plasticity was positively correlated with SNS activities, whereas stability was a negative predictor. Practical implications for social media industry and users were discussed.     

社交网站中的上行社会比较与抑郁的关系:一个有调节的中介模型及性别差异

为明确社交网站中的上行社会比较对青少年抑郁的作用机制,本研究构建了一个有调节的中介模型,重点考察了妒忌在二者关系中的中介作用、反刍思维的调节作用及其性别差异。以836名高中生为被试(M=16.34岁,SD=1.06),采用问卷法对社交网站中的上行社会比较、妒忌、反刍思维以及抑郁进行调查。结果显示:(1)在控制性别、年龄、年级、社交网站好友数量以及平均每天使用社交网站频率、时间后,社交网站上行社会比较对抑郁具有显著的正向预测作用;(2)妒忌能够在社交网站上行社会比较与抑郁的关系中起中介作用,且这种间接效应会受到反刍思维的调节;(3)有调节的中介模型存在性别差异:与男生相比,妒忌的中介效应在女生被试群体中更显著;在男生被试群体中,妒忌的中介作用会受到反刍思维的调节作用的影响,而在女生被试群体中,该调节效应不显著。