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Intro -- Preface -- Contents -- Abstract -- Introduction to Internet Addiction -- 1 The Evolution of Internet Addiction Disorder -- Abstract -- 1.1 Introduction -- 1.1.1 Diagnosis of Internet Addiction -- 1.1.2 The Evolution of Internet Addiction -- 1.1.3 Internet Addiction Test -- 1.2 Risk Factors for Internet Addiction -- 1.2.1 Social Factors -- 1.2.2 Psychological Factors -- 1.2.3 Biological Factors -- 1.3 Treatment Approaches -- 1.3.1 Motivational Interviewing -- 1.3.2 Cognitive Behavior Therapy -- 1.3.3 Inpatient Care and Retreat Centers -- 1.4 Final Thoughts -- References -- 2 Theoretical Models of the Development and Maintenance of Internet Addiction -- Abstract -- 2.1 Introduction: Why Are Theoretical Models of the Development and Maintenance of Internet Addiction Important? -- 2.2 Recent Models of the Development and Maintenance of Internet Addiction -- 2.3 Previous and Current Research as the Basis for the Model's Assumptions -- 2.4 Neurocognitive Mechanisms Potentially Underlying Internet Addiction -- 2.5 Conclusion -- References -- Neuroscientific Approaches to Internet Addiction -- 3 Structural Brain Imaging and Internet Addiction -- Abstract -- 3.1 Introduction -- 3.2 Methodologies for Assessing Structural Changes of the Brain -- 3.2.1 Three-Dimensional Anatomical MRI -- 3.2.1.1 Volumetric Analysis -- 3.2.1.2 Voxel-Based Morphometry -- 3.2.1.3 Cortical Thickness Measurement -- 3.2.2 Diffusion Tensor Imaging -- 3.2.2.1 Voxel-Based Analysis -- 3.2.2.2 Tract-Based Spatial Statistics -- 3.2.2.3 Tractography-Based Analysis -- 3.3 Brain Structural Abnormalities Associated with IAD -- 3.3.1 Results from Anatomical MRI -- 3.3.1.1 VBM Analysis -- 3.3.1.2 Cortical Thickness Analysis -- 3.3.2 Results from DTI -- 3.3.3 Correlations Between Brain Structural Alterations and Behavioral Assessments.

Blatantly observable in the U.S. currently, the political chasm grows, representing a prototype of political polarization in most if not all western democratic political systems. Differential political psychology strives to trace back increasingly polarized political convictions to differences on the individual level. Recent evolutionary informed approaches suggest that interindividual differences in political orientation reflect differences in group-mindedness and cooperativeness. Contrarily, the existence of meaningful associations between political orientation, personality traits, and interpersonal behavior has been questioned critically. Here, we shortly review evidence showing that these relationships do exist, which supports the assumption that political orientation is deeply rooted in the human condition. Potential reasons for the premature rejection of these relationships and directions for future research are outlined and implications for refinements and extensions of evolutionary informed approaches are derived.

AbstractTo examine whether political orientation is reflected in actual behavior, we applied classical paradigms of behavioral economics, namely the Public-Goods- (PGG) and the Trust-Game (TG) which constitute measures of cooperativeness, interpersonal trust and reciprocity respectively in a large German sample of N = 454. Participants intending to vote for right-of-center-parties showed significantly lower monetary transfers in both games than those intending to vote for left-of-center-parties. Accordingly, both scores were negatively associated with self-assessed conservatism and support for policies advocated by Germany's right-of-center-parties, while showing positive correlations with the support of policies left-of-center-parties advocate. Interestingly, both measures also show distinct correlational patterns with Right-Wing-Authoritarianism and Social-Dominance-Orientation. None of these patterns applied to the Lottery-Game measuring unspecific risk-tolerance. We conclude by discussing potential psychological mechanisms mediating the relationships between ideology and actual social behavior as well as differences in experimental design to explain the deviant pattern of (null-) results in former studies relating ideology to behavior in game-theoretic paradigms.

Growing evidence suggests that the general personality structure predisposes the political or ideological orientation. Here, we first replicated findings of associations between Big Five factors openness, agreeableness and conscientiousness, and self-reported political orientation in a large German sample. However, the new aspect of our study is the addition of Wahl-O-Mat (WoM; a prominent voting advice application) as a measure of concrete policy-positions. Here, a score of accordance between a participant's and the several German parties' stances on current and relevant policy-issues is computed. Given that political science identifies trends towards a dealignment of voters with political parties and a decreasing significance of socio-structural factors, an issue-based approach to vote choice may become critical in the future. Therefore, we investigated whether personality's influence on political orientation also extends to stances about specific issues and, thus, is not restricted to self-placements. As expected, WoM-scores also showed meaningful correlations with personality traits: accordance with right-of-center-parties is negatively related to openness and agreeableness and positively related to conscientiousness. Finally, we recruited smaller samples in the United States, Denmark, Sweden, Turkey, Spain, Australia, and Bulgaria and showed that the associations mentioned above are cross-nationally replicable. We conclude that personality influences not only self-perceived political identity but also attitudes towards current issues of political controversy. In both cases, the effects of personality were mediated by Right-Wing-Authoritarianism and Social Dominance Orientation. ; peerReviewed ; publishedVersion

Growing evidence suggests that the general personality structure predisposes the political or ideological orientation. Here, we first replicated findings of associations between Big Five factors openness, agreeableness and conscientiousness, and self-reported political orientation in a large German sample. However, the new aspect of our study is the addition of Wahl-O-Mat (WoM; a prominent voting advice application) as a measure of concrete policy-positions. Here, a score of accordance between a participant's and the several German parties' stances on current and relevant policy-issues is computed. Given that political science identifies trends towards a dealignment of voters with political parties and a decreasing significance of socio-structural factors, an issue-based approach to vote choice may become critical in the future. Therefore, we investigated whether personality's influence on political orientation also extends to stances about specific issues and, thus, is not restricted to self-placements. As expected, WoM-scores also showed meaningful correlations with personality traits: accordance with right-of-center-parties is negatively related to openness and agreeableness and positively related to conscientiousness. Finally, we recruited smaller samples in the United States, Denmark, Sweden, Turkey, Spain, Australia, and Bulgaria and showed that the associations mentioned above are cross-nationally replicable. We conclude that personality influences not only self-perceived political identity but also attitudes towards current issues of political controversy. In both cases, the effects of personality were mediated by Right-Wing-Authoritarianism and Social Dominance Orientation.

Abstract. Theories of smoking have been developed about the conditions and causes of smoking as well as for explaining its maintenance. Moreover, factors of smoking motivation have been identified, which describe incentives to smoke and types of smoking behavior. The most frequently reported motives are psychosocial smoking, sensorimotor smoking, indulgent smoking, stimulation smoking, sedation smoking, dependent smoking, and automatic smoking. In the first phase after the start of smoking, psychosocial smoking is the dominating motive, which is best represented by theories of social psychology. Sensorimotor smoking may be best explained by theories of classical and operant conditioning. Indulgent smoking (= smoking for pleasure) may be explained by neurochemical theories and by the neurobiological theories of dependence emphasizing nicotine-induced activation of mesolimbic dopaminergic reinforcement. Stimulation smoking and sedation smoking are related to arousal models. Moreover, sedation smoking is also explained by aspects of reducing negative affect (as claimed by theories of affect regulation) and by biochemical theories emphasizing serotonergic mechanisms in modulating anxiety as well as by theories of dependence. Dependent smoking, which is mostly based on negative reinforcement (suppression of withdrawal symptoms) may be explained by neurochemical theories as well as by neurobiological theories of psychological and physical dependence explaining blunted dopaminergic and serotonergic responsivity as due to desensitization of respective receptors. Also automatic smoking may be explained by processes of habit learning and neurobiological theories of dependence. Finally, personality theories have been applied to all of these smoking motives.

AbstractChronic pain affects at least one in five individuals. Hence, adequate pain judgement is a vital interpersonal skill. Nonetheless, women often face treatment disparities due to biased assessments. Priorly, sex and gender (i.e., biological category vs. cultural representation) have not been investigated separately. Our study was thus designed to disentangle their distinct influence on pain judgments. In an online study, N = 679 participants (73.8% female) were presented with a novel vignettes paradigm including descriptions of fictional gender-stereotypical and counter-stereotypical women and men. Participants were instructed to rate the characters' pain sensitivity before completing inventories measuring gender ontological beliefs and ambivalent sexism. We found significant interaction effects of observer and character sex, in that higher pain sensitivity was attributed to opposite-sex characters. Men showed a higher sex bias, which was partially mediated by lower social constructionism and higher hostile sexism. We further uncovered a gender bias across observers, in that feminine characters were assumed to be more pain sensitive, irrespective of their sex. Our research underscores the presence of sex and gender biases in pain judgments, even in scenarios with minimal contextual cues. Despite limitations, the findings offer insights for the development of intervention strategies, which might reduce treatment disparities.