English- and Chinese-learning infants map novel labels to objects and actions differently

Research based on naturalistic and checklist methods has revealed differences between English and Chinese monolingual children in their trajectories of learning nouns and verbs. However, studies based on controlled laboratory designs (e.g., Imai et al., 2008) have yielded a more mixed picture. Guided by a multidimensional view of word learning (in which different mechanisms are weighted and recruited to different extents over development), we examined English- and Mandarin-learning infants' (n = 128) ability to map novel labels to unfamiliar actions and objects. Findings reveal cross-linguistic variations in the mapping of words to actions versus objects that are consistent with those found previously with naturalistic and checklist methods. Specifically, English learners were able to map novel labels to both actions and objects at 18 months but to neither actions nor objects at 14 months. In an identical experimental paradigm, Mandarin learners at both 14 and 18 months of age were able to map novel labels to actions but not to objects. Similar patterns were found when infants were grouped based on their vocabulary size. Combined results lend support for a dynamic view of word learning that take into account multiple mechanisms interacting across developmental time with important cultural constraints.     

Exploring the developmental changes in automatic two-digit number processing

Even when two-digit numbers are irrelevant to the task at hand, adults process them. Do children process numbers automatically, and if so, what kind of information is activated? In a novel dot-number Stroop task, children (Grades 1-5) and adults were shown two different two-digit numbers made up of dots. Participants were asked to select the number that contained the larger dots. If numbers are processed automatically, reaction time for dot size judgment should be affected by numerical characteristics. The results suggest that, like adults, children process two-digit numbers automatically. Based on the current findings, we propose a developmental trend for automatic two-digit number processing that goes from decomposed sequential (activation of decade digit followed by that of unit digit) to decomposed parallel processing (simultaneous activation of decade and unit digits).     

Shyness,sociability, and the role of media synchronicity in the use of computer‐mediated communication for interpersonal communication

This study analysed how university students in Hong Kong with varying degrees of shyness and sociability utilized computer‐mediated communication (CMC) technologies for interpersonal communication. As spontaneous communication can increase the workload on working memory and accentuate feelings of social anxiety, it was hypothesized that shy students were more likely to use email and social network sites (asynchronous CMC) more frequently, and instant messaging and chat less (synchronous CMC). Results from an online questionnaire provided partial support for the hypotheses and suggested distinctive usage patterns separated by media synchronicity. Moreover, the analyses revealed a significant interaction between shyness and sociability on asynchronous CMC use.     

Assessment of awareness of connectedness as a culturally-based protective factor for Alaska native youth

Research with Native Americans has identified connectedness as a culturally based protective factor against substance abuse and suicide. Connectedness refers to the interrelated welfare of the individual, one's family, one's community, and the natural environment. We developed an 18-item quantitative assessment of awareness of connectedness and tested it with 284 Alaska Native youth. Evaluation with confirmatory factor analysis and item response theory identified a 12-item subset that functions satisfactorily in a second-order four-factor model. The proposed Awareness of Connectedness Scale (ACS) displays good convergent and discriminant validity, and correlates positively with hypothesized protective factors such as reasons for living and communal mastery. The measure has utility in the study of culture-specific protective factors and as an outcomes measure for behavioral health programs with Native American youth.     

Effects of recent exposure to a conditioned stimulus on extinction of Pavlovian fear conditioning

In six experiments we studied the effects of a single re-exposure to a conditioned stimulus (CS; "retrieval trial") prior to extinction training (extinction-reconsolidation boundary) on the development of and recovery from fear extinction. A single retrieval trial prior to extinction training significantly augmented the renewal and reinstatement of extinguished responding. Augmentation of recovery was not observed if the retrieval and extinction training occurred in different contexts. These results contrast with those reported in earlier papers by Monfils and coworkers in rats and by Schiller and coworkers in humans. We suggest that these contrasting results could depend on the contrasting influences of either: (1) occasion-setting contextual associations vs. direct context-CS associations formed as a consequence of the retrieval trial or (2) discrimination vs. generalization between the circumstances of conditioning and extinction.     

Saving graces: Impact of partner support and maternal attachment on partner attachments in an individualistic and a collectivist context

The current study investigated the relationships between current attachment to mother and attachment to romantic partners, and the role of current partner support and culture as moderators of that relationship. University students who were currently in a romantic relationship were recruited from Hong Kong and USA, and completed measures on attachment styles and partner support. Results showed that maternal attachment anxiety was correlated with romantic attachment anxiety; maternal attachment avoidance was correlated with romantic attachment avoidance, but this linkage varied by level of current partner support. Romantic attachment avoidance was also associated with current partner support, but this linkage was stronger for HK Chinese than for Americans. These results are discussed in terms of how interpersonal and personality factors promoted by culture can affect the developmental course of romantic relationships.     

Network Size, Social Support and Happiness in Later Life: A Comparative Study of Beijing and Hong Kong

This study investigates how happiness of elderly Chinese is related to their social support networks, based on survey data collected in 2000 from Beijing and Hong Kong. These two Chinese cities share a common cultural heritage but differ in social-economic structure. It was found that in both cities, income is more significant than gender and education in determining happiness, but it is less important than personal network size and particularly perceived social support. More importantly, findings from the two cites consistently lend support to the thesis that older persons with a larger network are happier and that social support plays a mediating role. Controlling for social-demographic factors does not change this pattern of relationships. There are, however, differences between the two cities. Beijing’s elderly were found to be happier and have larger social networks than Hong Kong’s elderly. Also, our explanatory models consistently account for less variance in the happiness of older persons in Beijing. These findings are probably due to the differences between socialist Beijing and capitalist Hong Kong in degrees of modernization and urbanization and in social organization of work and community life.