Korean-english Bilingual Children’s Stress Cue Sensitivity and its Relationship with Reading in English

Journal of Psycholinguistic Research - Lexical stress plays a critical role in multisyllabic word reading in English. However, assignment of English lexical stress, which is neither fixed nor...     

Islamophobia? Religion,Contact with Muslims,and the Respect for Islam

In the midst of growing reservations about Muslims in America, this study seeks to explore the factors accounting for Islamophobia by utilizing nationally representative data. The findings suggest that religious affiliations have differential effects on the degree to which one respects Islam, with Christians more likely to have low regard for Islam. The image of a God who punishes his followers for their sins has a positive association with the odds of Islam being least respected among all religions. While higher frequency of contact with Muslims predicts an overall improved opinion for Islam, evangelical and black Protestants present the opposite picture. Their increased exposure to Muslims leads to lower respect for Islam. I discuss the implications of these findings for theories of intergroup contact and subcultural identity.     

Association between Depressive Symptoms and Negative Dependent Life Events from Late Childhood to Adolescence

The association between stressful life events and depression has been consistently supported in the literature; however, studies of the developmental trajectories of these constructs and the nature of their association over time are limited. We examined trajectories of depressive symptoms and negative dependent life events and the associations between these constructs in a sample of 916 youth assessed annually from age 9 to 16, using latent growth curve modeling. Youth depressive symptoms, as rated by youth, parents, and teachers, decreased from late childhood into adolescence, whereas rates of youth-rated life events did not change significantly over time. Initial levels of depressive symptoms were positively associated with initial levels of life events. Furthermore, after controlling for the initial association between the two constructs, increases in depressive symptoms (as assessed by parents and youth) were positively associated with increases in life events over time. The study builds on prior research by focusing specifically on negative dependent life events, examining results across multiple informants, and employing latent growth curve modeling to evaluate associations between trajectories of life events and depressive symptoms in a longitudinal adolescent sample. Additional studies employing latent growth modeling to examine the changes in this association during adolescence are needed.     

GSK-3β activity in the hippocampus is required for memory retrieval

Several molecules were recently found to be important for the memory retrieval process in the hippocampus; however, the mechanisms underlying the memory retrieval remain poorly understood. GSK-3β has been implicated in the control of synaptic plasticity and memory formation. Here, we investigated the relationship between hippocampal GSK-3β activity and memory retrieval using behavioral and Western blotting methods. We found that GSK-3β was activated in the hippocampus after a retention session in the passive avoidance task. An intrahippocampal injection of the GSK-3β inhibitor, SB 216763, before the retention session blocked memory retrieval (but not reconsolidation) without affecting locomotor activity. These results suggest that GSK-3β activation would be essential for memory retrieval in the hippocampus.     

“I Am Sorry to Send You SPAM”

A series of studies investigating cultural differences in apology usage in unsolicited email advertising messages (i.e., SPAM) are reported. Study 1 documented that in comparison to American SPAM, a greater percentage of Korean SPAM included apologies. The next five studies (Ns= 516, 3132, 662, 524, 536) tested various explanations for cross‐cultural differences in uses of, and responses to, apologies. Findings indicated that advertising messages containing apologies were not necessarily more effective than advertising messages without apologies. Koreans, however, considered advertising messages with apologies as more credible and normal and exhibited a greater tendency to model other people's apology use than did Americans. Thus, the frequent presence of apologies in Korean unsolicited email advertising is likely to be based on Koreans' modeling behavior (i.e., a greater tendency to follow social norms).     

Meta-Analytic Analysis of Invariance Across Samples: Introducing a Method That Does Not Require Raw Data

Abstract

Invariance of surveys across different groups means that the respondents interpret the items in the same way, as reflected in similar factor loadings, for example. Invariance can be assessed using various statistical procedures, such as Multi-Group Confirmatory Factor Analysis. However, these analyses require access to raw data. Here, we introduce a meta-analytic method that requires only the factor correlation matrices of samples as input. It compares the structures of intercorrelations of factors by correlating these values across two samples, yielding a value of overall similarity for how the factors intercorrelate in different samples. This method was tested in three different ways. We conclude that the method yields useful results and can assess invariance when raw data are not available.     

Effect of Socioeconomic Status on the Linkage Between Suicidal Ideation and Suicide Attempts

Previous suicide attempts are a leading risk factor for completed suicide. To identify specific characteristics of those at high risk for attempts, we investigated associations with socioeconomic status (SES). Data from the 2013 Korean Community Health Survey (KCHS) included adults who reported suicidal ideation (N = 220,245). Attempts in the past 12 months were assessed. Associations of demographic, socioeconomic, and suicide‐related behavioral factors were analyzed using multiple logistic regression. Among those with suicidal ideation, 862 (3.9%) had attempted suicide. After stratification by age and gender, results showed that low education and unemployed young adult men and women had significantly higher rates of attempts. The lowest income level was associated with significantly higher rates of attempts in only young adult women. Among those with the lowest and highest income, the association between ideation and attempts was attenuated, whereas it was enhanced among other income groups.