Is Exposure to Suicide Beyond Kin Associated with Risk for Suicidal Behavior? A Systematic Review of the Evidence

Suicide bereavement and postvention literature often espouses risk for subsequent suicidal behavior among those previously exposed to a suicide death. Most often risk is discussed in relation to kin; however, many more individuals are exposed to suicide, and the impact of this exposure is important to understand in relation to targeting postvention. This review examined the research literature (1990–2014) to determine the evidence base for risk among those exposed to suicide. The findings demonstrate that risk of suicidal behaviors among those exposed to the suicide is significantly higher than those unexposed. These results are discussed within the context of current research in the field of postvention, and suggestions for future research are suggested.     

Picture versus question elaboration on young children's learning of sentences containing high- and low-probability content

The main purpose of the two experiments reported here was to compare the potency of two types of elaboration on children's learning of sentence content: The effects of partial picture adjuncts were compared to the effects produced by answering "why"-questions about the relationships specified in the sentences. Five- to seven-year-old children heard sentences of the form, subject/verb/direct object/preposition/instrument. Sentences contained either a high-probability or a low-probability instrument given the semantic context. In Experiment 1, sentences either were accompanied by a partial picture depicting the sentence action but omitting the instrument or were presented without a partial picture accompaniment. Recall was improved by provision of partial pictures at study. In Experiment 2, the sentences were accompanied by complete pictures depicting the sentence content. In both experiments, questioning significantly reduced recall of high-probability sentences, with recall of instruments affected especially negatively. Evidence is presented that insufficient attention to instruments may have been one mechanism mediating depressed recall of high- compared to low-probability instruments in the questioned conditions. In summary, partial pictures improved cued recall of sentences in this study; in contrast, all significant effects produced by answering why-questions were negative ones (i.e., later recall was reduced following interrogation at study).     

Serotonin transporter (5-HTTLPR) genotype, childhood abuse, and suicide attempts in adult psychiatric inpatients

There is growing evidence that a functional polymorphism in the serotonin transporter gene (5-HTTLPR) moderates the impact of negative life events (e.g., childhood abuse) on the development of depression. However, it is unclear whether the gene x environment interaction predicts suicide attempts specifically. In addition, previous studies have not examined different forms of childhood abuse separately. In the current study, we found that 5-HTTLPR genotype moderated the link between childhood physical and sexual, but not emotional, abuse and adult psychiatric inpatients' histories of suicide attempts.     

Without Intuitions

This paper criticizes Analytic philosophy with its reliance on intuitions in pursuit of conceptual analysis. Rejecting naturalism as an alternative philosophical method, I offer in its place a pragmatic and revisionary conception of philosophical method. I explain the method of Analytic philosophy and show why reliance on intuitions is essential to that method, which is unable to provide substantive answers to philosophical problems. I further show that reflective equilibrium or wide analysis requires some criterion of intuition choice and that this criterion can be applied directly to definitions themselves.     

The effect of segmental order on fricative labeling by children and adults

We examined whether children modify their perceptual weighting strategies for speech on the basis of the order of segments within a syllable, as adults do. To this end, fricative-vowel (FV) and vowel-fricative (VF) syllables were constructed with synthetic noises from an/[symbol: see text]/-to-/s/continuum combined with natural/a/and/u/portions with transitions appropriate for a preceding or a following /[symbol: see text]/or/s/. Stimuli were played in their original order to adults and children (ages of 7 and 5 years) in Experiment 1 and in reversed order in Experiment 2. The results for adults and, to a lesser extent, those for 7-year-olds replicated earlier results showing that adults assign different perceptual weights to acoustic properties, depending on segmental order. In contrast, results for 5-year-olds suggested that these listeners applied the same strategies during fricative labeling, regardless of segmental order. Thus, the flexibility to modify perceptual weighting strategies for speech according to segmental order apparently emerges with experience.     

Displaced aggression is alive and well: a meta-analytic review

Content analysis of 122 social psychology textbooks confirmed that displaced aggression received a surge of attention immediately following J. Dollard, L. W. Doob, N. E. Miller, O. H. Mowrer, and R. R. Sears (1939), but subsequent interest sharply declined. Contemporary texts give it little attention. By contrast, meta-analysis of the experimental literature confirms that it is a robust effect (mean effect size = +0.54). Additionally, moderator analyses showed that: (a) The more negative the setting in which the participant and target interacted, the greater the magnitude of displaced aggression; (b) in accord with N. E. Miller's (1948) stimulus generalization principle, the more similar the provocateur and target, the more displaced aggression; and (c) consistent with the contrast effect (L. Berkowitz & D. A. Knurek, 1969), the intensity of initial provocation is inversely related to the magnitude of displaced aggression.     

Collaborative discourse facilitates efficient communication and new learning in amnesia

In previous work we reported robust collaborative learning for referential labels in patients with hippocampal amnesia, resulting in increasingly rapid and economical communication or "common ground" with their partners [Duff, M. C., Hengst, J., Tranel, D., & Cohen, N. J. (2006). Development of shared information in communication despite hippocampal amnesia. Nature Neuroscience, 9(1), 140-146]. The current paper reports the results of discourse analysis, describing the communicative resources and practices used in extended, repeated collaborative interactions, as partners successfully referenced the target cards, managed the task itself, and engaged in non-task talk. Although amnesic pairs showed a normal rate of reduction across trials in the number of words and time-to-completion, their communicative effort was higher overall, particularly the discourse associated with task management, they exhibited a general lack of flexibility in their referential expressions, and they showed a number of striking differences in use of personal and communal knowledge and of multiple perspectives. The interactive sessions provided a potent learning environment, but also a very challenging task in the face of memory impairment. The results give insight into the acquisition of common ground and the manner in which amnesic patients accommodate their memory deficits during real-world interactions, and they have significant implications for memory intervention.     

Peer Experiences of Anxious and Socially Withdrawn Youth: An Integrative Review of the Developmental and Clinical Literature

Prior research indicates that both anxious youth and socially withdrawn youth tend to experience challenges and difficulties in various aspects of their peer relationships and social functioning. While clinical psychology researchers have examined how anxiety relates to peer experiences using normative and clinically anxious samples, developmental psychologists have focused primarily on the peer experiences of shy and withdrawn children. Research from these two fields has progressed on related yet separate paths, producing similar results despite using different terminology and assessment techniques. The purpose of this review is to bring together the developmental and clinical bodies of literature on the peer experiences of anxious and socially withdrawn youth by identifying common themes and unique contributions of each discipline. Studies reviewed focus specifically on the peer constructs of acceptance, friendship, peer victimization, social skills, and social-cognitive processes. Limitations including methodological inconsistencies and insufficient examination of age-, gender-, and ethnicity-related issues are identified. Recommendations for future collaborations between developmental and clinical researchers as well as implications for interventions targeting the peer relations of anxious and withdrawn youth are discussed.