The impact of stress on the life history strategies of African American adolescents: cognitions, genetic moderation, and the role of discrimination

The impact of 3 different sources of stress--environmental, familial (e.g., low parental investment), and interpersonal (i.e., racial discrimination)--on the life history strategies (LHS) and associated cognitions of African American adolescents were examined over an 11-year period (5 waves, from age 10.5 to 21.5). Analyses indicated that each one of the sources of stress was associated with faster LHS cognitions (e.g., tolerance of deviance, willingness to engage in risky sex), which, in turn, predicted faster LHS behaviors (e.g., frequent sexual behavior). LHS, then, negatively predicted outcome (resilience) at age 21.5 (i.e., faster LHS → less resilience). In addition, presence of the risk ("sensitivity") alleles of 2 monoamine-regulating genes, the serotonin transporter gene (5HTTLPR) and the dopamine D4 receptor gene (DRD4), moderated the impact of perceived racial discrimination on LHS cognitions: Participants with more risk alleles (higher "sensitivity") reported faster LHS cognitions at age 18 and less resilience at age 21 if they had experienced higher amounts of discrimination and slower LHS and more resilience if they had experienced smaller amounts of discrimination. Implications for LHS theories are discussed.     

History, Present Situation, and Problems of Chinese Psychology of Religion

There have been few research studies on the psychology of religion in Mainland China because of the “leftist” ideology that shaped the People’s Republic of China from its foundation until the introduction of reform and open policy. Since the 1980s, research in the field of psychology of religion in Mainland China has made remarkable progress. The main efforts include translating and introducing representative works from the former Soviet Union and the West, while theoretical studies have concentrated mainly on the origins, features, functions, and schools of psychology of religion. Researchers have developed new measurement tools based on local culture in psychology of religion. Empirical studies pay special attention to the relationship between religious belief and mental health, the features of religious thinking of the Chinese, the psychological state of professionals, and characteristic emotions of religious experiences as well as their correlation with biological processes. The problems that currently exist in the field in Mainland China include the following: lack of critical in-depth studies on the history of Western psychology of religion, absence of diversity in research methods, and disconnection of theoretical study from practical application. Obviously, these issues should influence the direction of future efforts.     

Cultural regulatory fit and strategies for coping with unsuccessful outcomes

The present research seeks to explain cross‐cultural differences in two strategies for coping with unsuccessful outcomes (consideration of multiple options and persistence) through regulatory fit, a development of the self‐regulation theory. We propose that, because of regulatory fit, eager consideration of multiple options is more encouraged in promotion‐focused cultures, whereas vigilant persistence is more encouraged in prevention‐focused cultures (a culture‐strategy regulatory fit). In addition, if an incentive is introduced to motivate the use of these strategies, a gain‐framed incentive is more effective in promotion‐focused cultures whereas a loss‐framed incentive is more effective in prevention‐focused cultures (a culture‐incentive regulatory fit). The hypotheses for the culture‐strategy fit (Study 1) and the culture‐incentive fit (Study 2) were both supported, with samples of Israeli Jews, Israeli Arabs (in both studies), and Hong Kong Chinese (in Study 1). Taken together, the findings contribute to the understanding of cross‐cultural differences in coping with unsuccessful outcomes and suggest the existence of cultural regulatory fit. Copyright © 2011 John Wiley & Sons, Ltd.     

Why do(n't) your partner's efforts at self-improvement make you happy? An implicit theories perspective

People often try to improve their interpersonal skills to satisfy romantic partners. However, when and why a partner appreciates these efforts is an important but underaddressed question. The present research explored how people's theories that interpersonal abilities are either fixed entities or can be changed incrementally affect their responses to relationship partner's efforts at self-improvement. Study 1 validated a new measure for these theories and showed that, compared to the former entity theorists, the latter incremental theorists were less likely to attribute recalled instances of partners' negative behaviors to dispositional causes and perceive these behaviors as fixed and stable. An experiment that induced these different implicit theories (Study 2) and a longitudinal study (Study 3) further demonstrated that perceptions of partners' self-improvement efforts led to greater increases in relationship security and quality among incremental than among entity theorists. How implicit theories may shape the interpersonal dynamics of self-improvement is discussed.     

Molecular and behavioral changes associated with adult hippocampus-specific SynGAP1 knockout

The synaptic Ras/Rap-GTPase-activating protein (SynGAP1) plays a unique role in regulating specific downstream intracellular events in response to N-methyl-D-aspartate receptor (NMDAR) activation. Constitutive heterozygous loss of SynGAP1 disrupts NMDAR-mediated physiological and behavioral processes, but the disruptions might be of developmental origin. Therefore, the precise role of SynGAP1 in the adult brain, including its relative functional significance within specific brain regions, remains unexplored. The present study constitutes the first attempt in achieving adult hippocampal-specific SynGAP1 knockout using the Cre/loxP approach. Here, we report that this manipulation led to a significant numerical increase in both small and large GluA1 and NR1 immunoreactive clusters, many of which were non-opposed to presynaptic terminals. In parallel, the observed marked decline in the amplitude of spontaneous excitatory currents (sEPSCs) and inter-event intervals supported the impression that SynGAP1 loss might facilitate the accumulation of extrasynaptic glutamatergic receptors. In addition, SynGAP1-mediated signaling appears to be critical for the proper integration and survival of newborn neurons. The manipulation impaired reversal learning in the probe test of the water maze and induced a delay-dependent impairment in spatial recognition memory. It did not significantly affect anxiety or reference memory acquisition but induced a substantial elevation in spontaneous locomotor activity in the open field test. Thus, the present study demonstrates the functional significance of SynGAP1 signaling in the adult brain by capturing several changes that are dependent on NMDAR and hippocampal integrity.     

Environmental enrichment eliminates the anxiety phenotypes in a triple transgenic mouse model of Alzheimer’s disease

Although the impacts of environmental enrichment (EE) in several genetic models of Alzheimer’s disease (AD) have been documented, the focus has remained predominantly on cognition. Few have investigated the expression of emotional phenotypes that mimic the notable affective features in AD. Here, we studied the interaction between EE and the coexpression of three genetic risk factors (mutations) for AD. In a longitudinal design, 3×Tg-AD mutants and wild type controls were compared at 6–7 months and subsequently at 12–13 months of age. Under standard housing, phenotypes of heightened anxiety levels were identified in the 3×Tg-AD mice in the elevated plus maze and open-field tests. Such trait differences between genotypes were substantially diminished under EE housing, which was attributable to the anxiolytic impact of EE on the mutant mice as much as the anxiogenic impact of EE on the wild type mice. In contrast, the phenotypes in learned fear were not significantly modified by EE in the tests of Pavlovian freezing and conditioned active avoidance conducted at either age. Rearing under EE thus has uncovered a novel distinction between innate and acquired expressions of fear response in the 3×Tg-AD mouse model that might be relevant to the mental health management of AD.     

Positive Emotion Differentiation: A Functional Approach

While positive emotion can be conceptualized broadly as a response to the potential for reward, the environment offers different kinds of rewards, and these are best approached in somewhat different ways. A functional approach to positive emotion differentiation distinguishes among several different types of rewards with strong implications for adaptive fitness and posits the existence of “discrete” positive emotions that promote an adaptive response to each reward. A taxonomy of eight positive emotions, dubbed the “PANACEAS” taxonomy based on an acronym of the first letter of each of the eight constructs, is presented as an example of this approach. Positive emotion constructs defined through functional analyses are useful for guiding empirical research, especially for identifying prototypical eliciting stimuli, and generating hypotheses about the implications of different positive emotions for a variety of outcomes. Research findings are reviewed that support the importance of positive emotion differentiation in understanding the effects of positive emotions on cognition, physiology, and behavior. Advantages of the functional approach are discussed, as well as implications of the approach for evaluating major theories of the structure of emotion.     

Latino Foster Parent Health Perceptions of Chronic Conditions: A Qualitative Exploration

Prior work using nationally representative data of children in the child welfare system suggested that Latino foster parents were less likely to identify children in their care as having chronic conditions. Hispanics comprise over one-fifth of children in foster care, the majority of whom have special health care needs, and there is a growing need to recruit qualified Latino families into the child welfare system. Little is known about Latino parents’ health perceptions regarding chronic conditions, and potential reasons for differing identification rates of children with special health care needs. We conducted 17 home-based, in-depth interviews with Latino foster parents to explore health perceptions and cultural beliefs for children in their care around the concept of chronic illness. We found that Latino foster parents’ understanding of conditions that occurred “over and over again” related to emotional and behavioral health problems. In contrast, their perception of “chronic” was associated with terminal, biological conditions that had limited treatment options, such as cancer, HIV, and hepatitis. Latino foster parents did not interpret the survey question on chronic illness as it was intended, and their view of recurrent conditions did not reflect chronic health conditions. Developing survey questions that are culturally sensitive should improve accuracy in assessing chronic health conditions for this high-risk population. Sensitivity to cultural interpretation for this high-needs population is vital to enhancing communication between families and health providers caring for children in foster care.     

Effects of Head Restraint on Signal Detectability in Simultaneous and Successive Vigilance Tasks

Dittmar, Warm, and Dember (1985) suggested that visual parallax may lead to declines in perceptual sensitivity over time in spatial vigilance tasks involving comparative judgments. The present study tested this possibility by restraining subjects' head movements during a 1-hr vigil in which comparative (simultaneous task) or absolute (successive task) judgments of line length were necessary for signal detection. Under free-viewing conditions, perceptual sensitivity declined over time with both types of tasks. Head restraint eliminated the sensitivity decrement in both cases. The results highlight signal quality as a crucial determinant of perceptual decrements in sustained attention.