Causal relationship between Internet use and social capital in Japan

Based on longitudinal data collected from a random sample panel survey, the present study found that different types of Internet usage are differentially related to social networks. The more social ties people have, the more likely they are to use personal computer (PC) email, and the use of PC email increases social ties. The results also show that the more supportive ties people have, the more they tend to use mobile phone email; however, it does not prove the use of mobile phone email increases supportive ties. However, participation in an online community is not related social networks. These findings suggest that PC email may increase the size of personal social networks, whereas mobile phone email is useful in maintaining existing strong ties which provide social support.     

Learning by Preparing‐to‐Teach and Teaching: A Meta‐Analysis

The present research meta‐analytically examined the effects of preparing‐to‐teach and subsequent teaching (relative to mere studying without teaching expectancy) on the acquisition of domain knowledge. The synthesis of 28 studies indicated that the estimated effect sizes (Hedges' gs) were 0.35 for preparing‐to‐teach and 0.56 for teaching with preparing‐to‐teach. Both preparing‐to‐teach and teaching with preparing‐to‐teach were effective in promoting deep learning (as well as surface learning) and even after a delay. The learning benefits of teaching with preparing‐to‐teach were larger when students expected and engaged in an interactive teaching activity than when they expected and engaged in a non‐interactive teaching activity. The mere expectation of interactive teaching also produced larger learning effects than the expectation of non‐interactive teaching. These results suggest that preparing‐to‐teach and teaching, interactive teaching after preparing to do so in particular, are useful for enhancing learning.     

The type A behavior pattern and immune reactivity to brief stress: change of volume of secretory immunoglobulin A in saliva

This article presents findings of a laboratory experiment on the association of the Type A behavior pattern with reactivity of secretory immune functioning to brief stress. 38 female undergraduate students classified as Type A (n = 19) or as Type B (n = 19) on the basis of their scores on the Kwansei Gakuin Type A scale performed a continuous arithmetic task in a situation in which they were exposed to aversive loud noise. Secretory immunoglobulin A (s-IgA) in saliva and autonomic measures (heart rate and frequency of eyeblink) were evaluated before and after the manipulation of stress. The volume of s-IgA at baseline was significantly higher for the Type A group than for the Type B group, suggesting that the former relative to the latter might be chronically higher in mucosal immune functioning. Also, the volume of s-IgA significantly increased after exposure to a brief stress for the Type B group but did not change for the Type A group, a finding which might indicate that the Type A group may have less immune reactivity to a brief stress.     

Gender and Deviance: A Comparison of College Students in Japan and the United States

Although evidence abounds in American criminology that young males are more prone to deviance than females, relatively little is known about the magnitude of the gender gap in deviance across cultures. Drawing on the literature concerning “risk taking” in power-control theory and on theory and research concerning cultural variability in “uncertainty avoidance,” we offer a rationale for predicting that the gender differences in levels of deviance are less among Japanese youth than Americans. Among Japanese, the level of male deviance should be closer to that of females because “uncertainty avoidance” is a strong component of Japanese culture that affects socialization of both males and females. Analysis of identical survey data from college students in Japan and the United States provides strong support for our argument.     

Japanese and American folk vocabularies for emotions

The authors investigated how emotions are labeled and conceptualized by individuals representing widely varying ages and educational backgrounds, who live in rural areas of Japan and the United States. The authors gathered data in 2 phases: 30 participants in each country first produced emotion terms, and another 2 groups of 28 (1 group from each country) sorted out those emotion terms by similarities. Results indicated that these laypersons' emotion vocabularies were larger than those typically studied in psychological research; both American and Japanese participants produced many terms referring to physical sensations or evaluative reactions. Also, the authors found both similarities and differences in how speakers of American English and Japanese conceptualized emotions, bringing into question the often simplistic notions of cultural differences reported in the previous literature (P. Ekman, 1994; P. Ekman & W. V. Friesen, 1971; P. Ekman et al., 1987).     

Changes in functional status among older adults in Japan: successful and usual aging

This research aimed to chart the trajectories of functional status in old age in Japan and to assess how self-rated health and cognitive functioning differentiate these trajectories and account for interpersonal differences. Data came from a 5-wave panel study of a national sample of 2,200 Japanese older adults between 1987 and 1999. The sample as a whole showed an accelerated increase in functional limitations with age. approximated by a quadratic function. More important, 3 major trajectories of functional change were identified: (a) minimal functional decrement, (b) early onset of functional impairment. and (c) late onset of functional impairment. These findings may serve as useful benchmarks for observations derived from other developed nations.     

Priming with Horizontal Reading Influences the Deployment of Visual Attention During Word Processing1

Previous studies on parallel processing of words have demonstrated that the orthographic properties of multiple words can be processed simultaneously. However, whether parallel lexical processing (which requires attentional allocation towards a subsequent N + 1 word) is possible has been much debated. We examined this controversy in the Japanese language with the flanker lexical decision task and investigated whether the deployment of attention changed after priming with horizontal reading. Participants allocated to the priming group read short passages written in Japanese before the flanker task. The results showed that the parallel processing of a lexical property was observed after priming, which implicates that reading facilitates the attentional allocation to the right during the processing of a current word. The results suggested that strategies to allocate attention to the right are at work during reading. Furthermore, the current study points to the possibility that word processing during reading can be assessed by combining the priming procedure and flanker lexical decision task.     

Spatiotemporal dynamics of long-term potentiation in rat insular cortex revealed by optical imaging

Long-term potentiation (LTP) of the gustatory cortex (GC), a part of the insular cortex (IC) around the middle cerebral artery, is a key process of gustatory learning and memory, including conditioned taste aversion learning. The rostral (rGC) and caudal GC (cGC) process different tastes; the rGC responds to hedonic and the cGC responds to aversive tastes. However, plastic changes of spatial interaction of excitatory propagation between the rGC and cGC remain unknown. The present study aimed to elucidate spatiotemporal profiles of excitatory propagation, induced by electrical stimulation (five train pulses) of the rGC/cGC before and after LTP induction, using in vivo optical imaging with a voltage-sensitive dye. We demonstrated that tetanic stimulation of the cGC induced long-lasting expansion of the excitation responding to five train stimulation of the cGC, and an increase in amplitude of optical signals in the IC. Excitatory propagation after LTP induction spread preferentially toward the rostral IC: the length constant (λ) of excitation, obtained by fitting optical signals with a monoexponential curve, was increased to 121.9% in the rostral direction, whereas λ for the caudal, dorsal, and ventral directions were 48.9%, 44.2%, and 62.5%, respectively. LTP induction was prevented by pre-application of D-APV, an NMDA receptor antagonist, or atropine, a muscarinic receptor antagonist, to the cortical surface. In contrast, rGC stimulation induced only slight LTP without direction preference. Considering the different roles of the rGC and cGC in gustatory processing, these characteristic patterns of LTP in the GC may be involved in a mechanism underlying conversion of palatability.     

Learning from Conflicting Texts: The Role of Intertextual Conflict Resolution in Between-Text Integration

The present study examined the effect of intertextual conflict resolution on learning from conflicting texts. In two experiments, participants read sets of two texts under the condition of being encouraged either to resolve a conflict between the texts' arguments (the resolution condition) or to comprehend the arguments (the comprehension condition). Experiment 1 found that participants in the resolution condition surpassed participants in the comprehension condition at the understanding of the controversial subjects and succeeded in the understanding of the intertextual relationships. Experiment 2 found that participants in the resolution condition recalled compatible and incompatible information from the texts more than did participants in the comprehension condition. The recalled information from one text was also positively correlated with that from the opposite text. These results suggest that intertextual conflict resolution facilitates successful integration of conflicting arguments in texts in terms of the documents model framework (e.g., Britt & Rouet, 2012).     

Childhood trauma and parental bonding among Japanese female patients with borderline personality disorder

The present study explored the relationship between borderline personality disorder (BPD) and childhood trauma and perceived parental behaviours among a sample of Japanese female outpatients. Participants were 45 female patients who were diagnosed with BPD and 45 female patients with a diagnosis of other nonorganic psychological disorders (aged 19 to 53). The participants completed surveys that assessed recollection of childhood abuse and neglect, perceived parental-rearing behaviours, and symptoms of BPD. MANOVAs and logistic regression analyses were conducted in order to analyse the data. The results showed that the patients with BPD reported more severe forms of childhood traumas, including emotional, physical, and sexual abuse and emotional and physical neglect, than did the non-BPD patients. This is consistent with previous findings in North America that have reported higher prevalence and greater severity of various childhood traumas in individuals with BPD compared with those with non-BPD disorders or nonclinical samples. This study also found that the patients with BPD recalled both of their parents as more overprotective/controlling and less caring than did the non-BPD patients. Last, logistic regression analyses found significant predictors of BPD diagnosis were reported emotional abuse and neglect as well as perceived paternal overprotection. Overall, these results indicate that whereas psychological risk factors in Japan are similar to those reported elsewhere, the same pathology can emerge from somewhat different causal pathways.