Attentional window in schizophrenia and schizotypal personality: Insight from negative priming studies

One of the core deficits that characterizes schizophrenia is an increase in distractibility and disinhibition at all levels of information processing. Patients with schizophrenia seem unable to focus attention on the relevant events while ignoring the irrelevant stimuli. This pattern of behavior is also observed in unmedicated schizotypal individuals who may carry liability for schizophrenia. In this review, we focus on studies of attentional inhibition, as assessed by the negative priming paradigm, to elucidate the relationships among deficits in inhibition, clinical symptoms and medication effects. We then consider models of the etiology of deficits in negative priming in schizophrenia and schizotypal personality. Finally, we discuss the potential power of utilizing hypothesis-driven cognitive paradigms in psychiatric research.     

Personality,Meta-Mood Experience,Life Satisfaction,and Anxiety in Australian versus Singaporean Students

This study explores two issues concerning the relationships between personality, meta-mood experience, life satisfaction, and anxiety. First, it explored the incremental value of Extraversion, Agreeableness, Conscientiousness, Neuroticism, and Openness to Experience in predicting the three components of meta-mood experience (that is, attention to feelings, emotional clarity, clarity of feelings and mood repair), after controlling for demographic variables across Australia and Singapore. Second, it explored the incremental value of the three meta-mood experience components in predicting life satisfaction and anxiety, after controlling for demographic variables and personality variables across the two countries. One hundred and eighty nine tertiary students from Australia and 243 tertiary students from Singapore participated in this study. First, hierarchical regression analyses for both samples suggested that Agreeableness and Neuroticism are the two most important personality predictors of meta-mood experience, emotional attention, and emotional repair. Second, hierarchical regression analyses for both samples suggested that emotional repair was a significant predictor for life satisfaction and anxiety, even after controlling for demographic variables and personality variables. These results have implications for therapeutic interventions with life satisfaction versus anxiety. Funding for this research is facilitated partially by a research grant from the National Institute of Education.     

Externalizing problems,internalizing problems,and suicidal ideation in Singaporean adolescents: Sex differences

Adolescent suicide is considered a worldwide problem and an increasing source of concern in Singapore. This study explores the relationships among four factors of maladjustment (that is, emotional distress, negative self, antisocial behavior, and anger control problems) and suicidal ideation in two hundred and seventy-one adolescents from Singapore. Findings from the study indicated that emotional distress, negative self-concept, and antisocial behavior significantly predicted suicidal ideation for the whole sample. Beta weight is largest for emotional distress, followed by negative self, and then antisocial behavior. For females, only emotional distress significantly predicted suicidal ideation. Implications of these findings with regard to working with adolescents with suicidal ideations are discussed. Funding for this research is facilitated by grant RP 1/01 APH.     

Syntactic processing in Korean-English bilingual production: Evidence from cross-linguistic structural priming

A structural priming experiment investigated whether grammatical encoding in production consists of one or two stages and whether oral bilingual language production is shared at the functional or positional level [Bock, J. K., Levelt, W. (1994). Language production. Grammatical encoding. In M. A. Gernsbacher (Ed.), Handbook of psycholinguistics (pp. 945-984). San Diego, CA: Academic Press] by manipulating syntactic structure and argument order in structurally parallel Korean and English dative sentences. The results revealed that structural priming across languages can occur when both languages share syntactic structure, independent of argument order. Specifically, cross-linguistic argument-order-independent structural priming in canonical Korean postpositional and English prepositional dative structures was observed, providing evidence for shared bilingual syntactic processing occurring at the abstract, functional level within a two-stage grammatical encoding process. This is the first demonstration of cross-linguistic priming of argument-order-independent structural information.     

Is the Third‐Person Effect Real? A Critical Examination of Rationales,Testing Methods,and Previous Findings of the Third‐Person Effect on Censorship Attitudes

Regarding the effect of the third‐person perception on censorship attitudes, the present study first highlighted logical weaknesses of previously proposed rationales and limitations of previously used statistical models to test the effect. This study reanalyzed data from past research on the effect of the third‐person perception. In Study 1, the average effects of the other‐self perceptual gap in the media influence on censorship attitudes were estimated based on reports from 13 previous studies (total N = 6,414). Study 2 reanalyzed Schmierbach, Boyle, Xu, and McLeod's (2011) correlational data (N = 692). The results of these two studies showed that the presumed effect on others is a stronger predictor of censorship attitudes than the other‐self differential in perceived media effect.     

Confidence Bounds and Power for the Reliability of Observational Measures on the Quality of a Social Setting

Social scientists are frequently interested in assessing the qualities of social settings such as classrooms, schools, neighborhoods, or day care centers. The most common procedure requires observers to rate social interactions within these settings on multiple items and then to combine the item responses to obtain a summary measure of setting quality. A key aspect of the quality of such a summary measure is its reliability. In this paper we derive a confidence interval for reliability, a test for the hypothesis that the reliability meets a minimum standard, and the power of this test against alternative hypotheses. Next, we consider the problem of using data from a preliminary field study of the measurement procedure to inform the design of a later study that will test substantive hypotheses about the correlates of setting quality. The preliminary study is typically called the ??generalizability study?? or ??G study?? while the later, substantive study is called the ??decision study?? or ??D study.?? We show how to use data from the G study to estimate reliability, a confidence interval for the reliability, and the power of tests for the reliability of measurement produced under alternative designs for the D study. We conclude with a discussion of sample size requirements for G studies.     

Medial prefrontal cortex is selectively involved in response selection using visual context in the background

The exact roles of the medial prefrontal cortex (mPFC) in conditional choice behavior are unknown and a visual contextual response selection task was used for examining the issue. Inactivation of the mPFC severely disrupted performance in the task. mPFC inactivations, however, did not disrupt the capability of perceptual discrimination for visual stimuli. Normal response selection was also observed when nonvisual cues were used as conditional stimuli. The results strongly suggest that the mPFC is not necessarily involved in the inhibition of response or flexible response selection in general, but is rather critical when response selection is required conditionally using visual context in the background.     

The temporal dimension of national identification: An empirical investigation in South Korea and Australia

We argue that national identification can be framed temporally, such that people may differently identify with their nation's past or present. Further, we argue that temporal national identification has important consequences for attitudes towards social changes. Within this new theoretical framing, we tested the empirical separability and predictive utility of past national identification and present national identification in South Korea and Australia. Results showed that, in both countries, past and present national identifications are correlated but empirically distinct constructs, which independently contribute to general national identification. Past and present national identifications were also shown to be grounded in distinct notions of national continuity. Most importantly, in both countries, present national identification positively predicted favourable attitudes towards social changes and globalization, whereas past national identification negatively predicted these attitudes. These findings suggest that temporally framed national identification is an important construct in the domain of social identification and in research on social changes and globalization.     

Why employees with higher challenging appraisals style are more affectively engaged at work? The role of challenging stressors: A moderated mediation model

Challenging stressors have been positively linked to various work outcomes. However, the role of individual differences in stress appraisal in shaping the function of challenging stressors and work outcomes has been rarely discussed. Drawing on the individual differences perspective, the authors propose that employees higher in challenge appraisal are more likely to have challenging stressors and are more responsive to such stressors to have a higher positive affect at work. Results obtained from 117 employees supported the hypotheses. The results indicated that challenge appraisal is positively related to challenging stressors. In addition, challenging stressors has a positive association with positive affect at work when challenge appraisal is high but has a null association when challenge appraisal is low. The findings suggest that challenging stressors does not necessarily bring positive work outcomes as suggested in past studies and highlight the importance of considering dispositional tendency in stress appraisal when looking into the function of challenging stressors and work outcomes.     

Using Retrieval Cues to Attenuate Return of Fear in Individuals With Public Speaking Anxiety

Even after successful exposure, relapse is not uncommon. Based on the retrieval model of fear extinction (e.g., Vervliet, Craske, & Hermans, 2013), return of fear can occur after exposure due to an elapse of time (spontaneous recovery) or change in context (contextual renewal). The use of external salient stimuli presented throughout extinction (i.e., retrieval cues [RCs]) has been suggested as a potential solution to this problem (Bouton, 2002). The current study examined whether RCs attenuated return of fear in individuals with public speaking anxiety. Sixty-five participants completed a brief exposure while presented with two RC stimuli aimed at a variety of senses (visual, tactile, olfactory, and auditory). Later, half the participants were tested for return of fear in a context different from the exposure context, and the other half in the same context. Half of each context group were presented with the same cues as in exposure, while the other half were not. Return of fear due to an elapse of time, change in context, and effects of RCs were evaluated on subjective, behavioral, and physiological measures of anxiety. Although contextual renewal was not observed, results supported effects of RCs in reducing spontaneous recovery on behavioral and physiological measures of anxiety. There was also evidence that participants who were reminded of feeling anxious during exposure by the RCs benefited more from using them at follow-up, whereas those who perceived the cues as comforting (safety signals) benefited less. Clinical implications of the findings are discussed.