The present study employed latent growth mixture modeling to discern distinct trajectories of loneliness using data collected at 2‐year intervals from age 7–17 years (N = 586) and examine whether measures taken at age 5 years were good predictors of group membership. Four loneliness trajectory classes were identified: (1) low stable (37% of the sample), (2) moderate decliners (23%), (3) moderate increasers (18%), and (4) relatively high stable (22%). Predictors at age 5 years for the high stable trajectory were low trust beliefs, low trusting, low peer acceptance, parent reported negative reactivity, an internalizing attribution style, low self‐worth, and passivity during observed play. The model also included outcome variables. We found that both the high stable and moderate increasing trajectories were associated with depressive symptoms, a higher frequency of visits to the doctor, and lower perceived general health at age 17. We discuss implications of findings for future empirical work.

Childhood loneliness is characterised by children's perceived dissatisfaction with aspects of their social relationships. This 8-year prospective study investigates whether loneliness in childhood predicts depressive symptoms in adolescence, controlling for early childhood indicators of emotional problems and a sociometric measure of peer social preference. 296 children were tested in the infant years of primary school (T1 5 years of age), in the upper primary school (T2 9 years of age) and in secondary school (T3 13 years of age). At T1, children completed the loneliness assessment and sociometric interview. Their teachers completed externalisation and internalisation rating scales for each child. At T2, children completed a loneliness assessment, a measure of depressive symptoms, and the sociometric interview. At T3, children completed the depressive symptom assessment. An SEM analysis showed that depressive symptoms in early adolescence (age 13) were predicted by reports of depressive symptoms at age 8, which were themselves predicted by internalisation in the infant school (5 years). The interactive effect of loneliness at 5 and 9, indicative of prolonged loneliness in childhood, also predicted depressive symptoms at age 13. Parent and peer-related loneliness at age 5 and 9, peer acceptance variables, and duration of parent loneliness did not predict depression. Our results suggest that enduring peer-related loneliness during childhood constitutes an interpersonal stressor that predisposes children to adolescent depressive symptoms. Possible mediators are discussed

A scale was constructed to assess children's generalized trust beliefs (CGTB) in four target groups (mother, father, teacher and peer) with respect to three bases of trust: reliability, emotionality, and honesty. The CGTB Scale was administered to 145 Year 5 and 156 Year 6 children (mean age = 10 years, 1 month) residing in the English Midlands, United Kingdom. Exploratory and confirmatory factor analyses yielded evidence for the expected factor structure of the CGTB Scale. The total CGTB Scale and subscales demonstrated acceptable internal consistency and expected levels of stability across time. As support for validity, Year 6 participants' scores on the CGTB peer subscale were correlated with their trust beliefs in classmates, assessed a year earlier. As hypothesized, children's helpfulness to their classmates was correlated with the CGTB Scale and subscales. Girls displayed greater trust beliefs and helpfulness to classmates than did boys.

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Four studies examined the relation between trust and loneliness. Studies 1, 2, and 3 showed that trust beliefs negatively predicted changes in loneliness during early childhood (5-7 years), middle childhood (9-11 years), and young adulthood (18-21 years). Structural equation modeling yielded support for the hypothesis that the relation between trust beliefs and loneliness was mediated, in part, by social disengagement, which varied by age and gender. Study 4 showed that when young adults were primed for distrust rather than for trust cognitions, they showed greater withdrawal (loneliness) affect, lower willingness to disclose, and less perceived success in achieving rapport. The findings yielded support for the hypotheses that (a) low trust beliefs promote loneliness from childhood to adulthood and (b) social disengagement and cognitive schema mechanisms account for the relation.

This series of studies is the first to examine hypervigilance for social threat among lonely children and the first to establish this link using eye-tracking technology. Hypervigilance for social threat was operationalised as hostility to ambiguously motivated social exclusion in a variation of the hostile attribution paradigm (Study 1), scores on the Children's RejectionSensitivity Questionnaire (Study 2), and visual attention to socially threatening stimuli (Study 3). The participants were 185 children (11 years -7 months to 12 years -6 months), 248 children (9 years -4 months to 11 years -8 months) and 147 children (8 years -10 months to 12 years -10 months) in the three studies, respectively. Regression analyses showed that, with depressive symptoms covaried, there were quadratic relations between loneliness and these different measures of hypervigilance to social threat. As hypothesized, only children in the upper range of loneliness demonstrated elevated hostility to ambiguously motivated social exclusion, higher scores on the rejection sensitivity questionnaire, and disengagement difficulties when viewing socially threatening stimuli. We found that very lonely children are hypersensitive to social threat.Key words: Loneliness; Children; Hypervigilance; Social Threat; Rejection; Hypersensitivity, Rejection-sensitivity; Eye movement; Attentional bias.Running Head: LONELINESS AND HYPERVIGILANCE TO SOCIAL THREAT 4 Investigating Hypervigilance for Social Threat of Lonely ChildrenResearchers have examined the social information processing biases that serve to maintain loneliness. One such bias is conceptualized as the 'hypervigilance for social threat hypothesis' (HSTH), where it is argued that rejection sensitivity contributes to behavioral deficiencies (e.g., withdrawal) that undermine the opportunities to develop and maintain positive social relationships (Cacioppo & Hawkley, 2009). Several studies provide support for the HSTH in adults (Jones & Carver, 1991;Jones, Freemon & Goswick, 1981;Sloan & Solano, 1984), but there has been little work on this in children. Confirming the HSTH during childhood is important because it would indicate that this form of social information bias is evident during development and, therefore, a potential contributor to the persistence of loneliness from childhood through to adulthood, which itself predicts mental and physical health. Loneliness and social information processing biasesLoneliness is an unpleasant state that arises from a discrepancy between the interpersonal relationships people want to have, and those they perceive they currently have (Peplau & Perlman, 1982). Loneliness is not linked to the number of friends that a person has (Young, 1982;Qualter & Munn, 2005). It is a prevalent problem in children, adolescents and adults (Cacioppo & Patrick, 2008; Rotenberg & Hymel, 1999), and is acknowledged in the Diagnostic and Statistical Manual for Mental Disorders (DSM-IV-TR: American Psychiatric Association, 2000) because it often causes significant distress a...