Slow wave sleep during a daytime nap is necessary for protection from subsequent interference and long-term retention

While it is now generally accepted that sleep facilitates the processing of newly acquired declarative information, questions still remain as to the type and length of sleep necessary to best benefit declarative memories. A better understanding could lend support in one direction or another as to the much-debated role of sleep, be it passive, permissive, or active, in memory processing. The present study employed a napping paradigm and compared performance on a bimodal paired-associates task of those who obtained a 10-min nap, containing only Stages 1 and 2 sleep, to those whose nap contained slow-wave sleep (SWS) and rapid eye movement (REM) sleep (60-min nap), as well as to subjects who remained awake. Measurements were obtained for baseline performance at training, after a sleep/no sleep interval for short-term retention, after a subsequent stimulus-related interference task, and again after a weeklong retention period. While all groups learned the information similarly, both nap groups performed better than the Wake group when examining short-term retention, approximately 1.5h after training (10-min p=.052, 60-min p=.002). However, performance benefits seen in the 10-min nap group proved to be temporary. Performance after a stimulus-related interference task revealed significantly better memory retention in the 60-min nap group, with interference disrupting the memory trace far less than both the Wake and 10-min nap groups (p<.001, p=.006, respectively). After a weeklong retention period, sleep's benefit to memory persisted in the 60-min nap group, with performance significantly greater than both the Wake and 10-min nap groups (p<.001, p=.004, respectively). It is our conclusion that SWS, obtained only by those in the 60-min nap group, served to actively facilitate the consolidation of learned bimodal paired-associates, supported by theories such as the Standard Theory of Consolidation as well as the Synaptic Homeostasis Hypothesis.     

The influence of aging on preferences for sequences of mixed affective events

Research on preferences among sequences of mixed affective events has mostly used young adults as participants. Given differences due to aging in people's ability to regulate emotion, one could expect differences due to aging in preferences for different sequences. Study 1 demonstrated age‐related differences in how older adults (age 65 and older) versus young adults (age 18–25) choose to order mixed affective events that will occur over time. The tendency to choose sequences in which the final event is positive was greater among older adults versus young adults. And, more so than young adults, older adults preferred that the positive and negative events in a sequence be separated in time by a neutral event. Studies 2–3 investigated age‐related differences in overall retrospective evaluations of presented sequences of mixed affective events. In contrast to young adults, older adults' retrospective evaluations were not affected by: (1) whether the final trend of the sequence improved monotonically; (2) whether the last event in the sequence was positive; or (3) the temporal proximity of positive and negative events in the sequence. Results of Study 3 suggest that these age‐related differences are due to differences in older (vs. young) adults' ability to regulate emotion. Copyright © 2010 John Wiley & Sons, Ltd.     

Task‐ and self‐related pathways to deep learning: The mediating role of achievement goals,classroom attentiveness,and group participation

Background The expectancy‐value and achievement goal theories are arguably the two most dominant theories of achievement motivation in the contemporary literature. However, very few studies have examined how the constructs derived from both theories are related to deep learning. Moreover, although there is evidence demonstrating the links between achievement goals and deep learning, little research has examined the mediating processes involved. Aims The aims of this research were to: (a) investigate the role of task‐ and self‐related beliefs (task value and self‐efficacy) as well as achievement goals in predicting deep learning in mathematics and (b) examine how classroom attentiveness and group participation mediated the relations between achievement goals and deep learning. Sample The sample comprised 1,476 Grade‐9 students from 39 schools in Singapore. Methods Students' self‐efficacy, task value, achievement goals, classroom attentiveness, group participation, and deep learning in mathematics were assessed by a self‐reported questionnaire administered on‐line. Structural equation modelling was performed to test the hypothesized model linking these variables. Results and conclusions Task value was predictive of task‐related achievement goals whereas self‐efficacy was predictive of task‐approach, performance‐approach, and performance‐avoidance goals. Achievement goals were found to fully mediate the relations between task value and self‐efficacy on the one hand, and classroom attentiveness, group participation, and deep learning on the other. Classroom attentiveness and group participation partially mediated the relations between achievement goal adoption and deep learning. The findings suggest that (a) task‐ and self‐related pathways are two possible routes through which students could be motivated to learn and (b) like task‐approach goals, performance‐approach goals could lead to adaptive processes and outcomes.     

Awareness Versus Un-Clinging: Which Matters in Mindfulness?

Awareness and un-clinging have been emphasised in Buddhist discourse as important facets of mindfulness practice for over 2500 years. However, there is a lack of rigorous research examining the relationship between these two elements and their importance to well-being. To evaluate these abstract constructs, the current study adopted multiple assessment modalities; namely, a self-report scale, experience sampling (assessing ‘momentary mindfulness’), and semi-structured interviews (assessing ‘rater-rated mindfulness’). A total of 415 participants completed the questionnaire survey. Among them, 71 participants further took part in the experience sampling procedure and semi-structured interviews. The findings reveal that self-reported awareness was mildly correlated with momentary mindfulness (r = .35) but was not significantly correlated with rater-rated mindfulness. Self-reported un-clinging was moderately correlated with rater-rated mindfulness (r = .53) but was not significantly correlated with momentary mindfulness. Un-clinging, but not awareness, can distinguish meditators from non-meditators. Lastly, based on the Buddha’s mindfulness discourse, a path analysis model illustrates that the effects of un-clinging and awareness on stress reduction are mediated by emotional intelligence and non-attachment. Practical implications and future research designs are discussed.     

Policy Frames, Metaphorical Reasoning, and Support for Public Policies

This article evaluates the predictive value of a new theory for understanding public support for alternative solutions to policy problems, which we call policy metaphors. A policy metaphor represents a particular form of cognitive framing that makes use of commonly understood social institutions and judgments about their effectiveness to form "archetypes" against which proposed solutions to new policy problems are compared. We test the extent to which both understanding of and preference for particular policy frames predicts the nature and strength of policy choices by a representative sample of the American public. After controlling for factors that past research has shown to be important in understanding public opinion, including general partisan and ideological attitudes, self-interest, political values, and emotions, the cognitive frames specified by the general theory of policy metaphors are shown to strongly predict public support for hypothetical solutions to three different policy problems. These frames also predict support for President Clinton's 1993–94 health care reforms after controlling for those same conventional predictors. Most importantly, we demonstrate that these cognitive frames help constrain the beliefs of even the least politically aware members of the general public. Discussion centers on the implications of this new approach for understanding public opinion.     

Do self-report measures of social anxiety reflect cultural bias or real difficulties for Asian American college students?

Construal of the self as independent or interdependent in relation to others has been found to correlate significantly with social anxiety symptom ratings, raising concerns about possible cultural bias in these measures for Asian Americans. To investigate the validity of self-reported social anxiety symptoms, we examined the role of ethnicity in the associations among social anxiety, self-construal, and adaptive social functioning in a sample of 229 Asian- and European American college students. Results revealed that ethnicity moderated the relationship between self-construal and social anxiety such that interdependent self-construal was associated with higher social anxiety only for first generation Asian Americans. However, there were no significant ethnic differences in the associations between social anxiety self-reports and several measures of social functioning.     

Human Rights and the Citizen of the Kingdom of Heaven

This article argues for a new Christian theological rationale for human rights that takes into account serious contemporary critiques of rights language. Human rights derive from our being made in the image of God. But rather than being static metaphysical properties which humanity possesses, they form a moral language about the image of God, which must be constantly refashioned to suit the times. Furthermore, the human community to which these rights belong is not mere created humanity, but instead the humanity of the eschatological kingdom of heaven, of which the ecumenical church is the messenger. The ecumenical task, then, is to articulate a more holistic conception of what the image of God means to ensure that human rights language does not become narrowly sectarian.