Development of the cognitive appraisal and understanding of social events (CAUSE) videos.

This study describes the development and validation of 4 videos designed to assess adolescent cognitive appraisals and understanding of social events (the CAUSE Videos). Story lines varied in outcome (2 negative and 2 ambiguous). Convergent and divergent validity were tested in samples of college freshmen and sophomores. As hypothesized, threatening interpretations during ambiguous situations were positively associated with trait hostility (convergent validity) but were not significantly associated with aggression (divergent validity). Negative video interpretations were not significantly associated with hostility or aggression. These videos provide a valid method for assessing adolescents' appraisals of ambiguous and negative social situations in a laboratory setting and may be used to test hypotheses about cognitive processes underlying associations such as that between low socioeconomic status and health in adolescents.     

Perceptions of Suicide Risk and the Helpfulness of Intervention Strategies: A Comparison of Students and Mothers

College students (n = 132) and mothers (n = 64) listened to simulated hotline calls and rated level of suicide risk and the helpfulness of interventions. Students also rated their intent to take action in a similar situation; mothers rated their child's intent to take action. Students, more than mothers, perceived emotional problems to be associated with risk; mothers, more than students, perceived changes in behavior to be associated with risk. Students and mothers generally agreed regarding the helpfulness of different interventions, rating talking as most helpful. However, students, more than mothers, perceived social distraction as helpful. Mothers were generally accurate in their perceptions of their children's intended actions. Results suggest the need for additional research on the skills adolescents bring to crisis situations.     

Searching from the top down: Ageing and attentional guidance during singleton detection

Previous investigations of adult age differences in visual search suggest that an age-related decline may exist in attentional processes dependent on the observer's knowledge of task-relevant features (top-down processing). The present experiments were conducted to examine age-related changes in top-down attentional guidance during a highly efficient form of search, singleton detection. In Experiment 1 reaction times to detect targets were lower when target features were constant (feature condition) than when target features were allowed to vary between trials (mixed condition), and this reaction time benefit was similar for younger and older adults. Experiments 2 and 3 investigated possible interactions between top-down and bottom-up (stimulus-driven) processes. Experiment 2 demonstrated that search times for both age groups could be improved when targets varied on an additional feature from distractors (double-feature condition) but only when top-down control was available (feature search). In Experiment 3, the availability of top-down guidance enabled both younger and older adults to override the distracting effects of a noninformative spatial location cue. These findings indicate that top-down attentional control mechanisms interact with bottom-up processes to guide search for targets, and that in the context of singleton detection these mechanisms of top-down control are preserved for older adults.