Optische Versuche über Ruhe und Bewegung

Ohne Zusammenfassung Mit 20 Textabbildungen. Dissertation der Naturwissenschaftlichen Fakult?t Frankfurt a. M.     

Adolescents' Reward‐related Neural Activation: Links to Thoughts of Nonsuicidal Self‐Injury

Adolescence is a critical developmental period marked by an increase in risk behaviors, including nonsuicidal self‐injury (NSSI). Heightened reward‐related brain activation and relatively limited recruitment of prefrontal regions contribute to the initiation of risky behaviors in adolescence. However, neural reward processing has not been examined among adolescents who are at risk for future engagement for NSSI specifically, but who have yet to actually engage in this behavior. In the current fMRI study (N = 71), we hypothesized that altered reward processing would be associated with adolescents' thoughts of NSSI. Results showed that NSSI youth exhibited heightened activation in the bilateral putamen in response to a monetary reward. This pattern of findings suggests that heightened neural sensitivity to reward is associated with thoughts of NSSI in early adolescence. Implications for prevention are discussed.     

Cross-Language Transfer of Early Literacy Skills: An Examination of Young Learners in a Two-Way Bilingual Immersion Elementary School

The present study investigates the relationship between first-language literacy skills and the acquisition of second-language reading skills for K–2 grade students enrolled in a Spanish–English two-way bilingual immersion program. Students received literacy instruction in their first language and oral language support in their second language. One hundred seventy-four students were administered subtests of the Woodcock-Johnson (Woodcock-Munoz) in English and Spanish. Findings support the theory of cross-linguistic transfer from the first language to the second language across both constrained and unconstrained literacy skills for both monolingual and bilingual students included in this study. However, findings also suggest interesting differences across language groups.     

How do Children Evaluate the Gossiper of Negative Gossip?

In this study, we investigated how children evaluate gossipers. There are two conflicting ways in which children evaluate the gossiper of negative gossip about another person. One is that they perceive the gossiper of negative gossip as bad because saying something negative about another person can be seen as indirect aggression. The other is that they perceive the gossiper of negative gossip as good because such gossip is beneficial to regulate their relationship with the gossip's target. To address the issue, we asked 7- and 8-year-olds to choose the gossiper of negative gossip or the gossiper of neutral gossip as a cooperative partner and to distribute resources between the gossipers. We found that the children often did not choose the gossiper of negative gossip as a partner and did not distribute many resources to her, indicating a perception of the negative gossiper as bad. This suggests that children's evaluation of a gossiper is influenced by the valence of gossip rather than the value of gossip.     

Success with a twinge of distress: Antecedents and consequences of outperformance-related discomfort

Although outperforming others brings intrapersonal benefits, it may also carry interpersonal costs. The term Sensitivity about being the Target of a Threatening Upward Comparison (STTUC) captures the discomfort that outperformers may feel when they perceive that their success upsets an outperformed person. This paper reviews 20+ years of research on STTUC. It begins by defining STTUC and its three essential criteria. It then delineates situation and person variables that explain variability in STTUC. It follows by describing outperformers' varied reactions to STTUC and then explains the potential social function of STTUC.