Genetic and environmental influences on personality trait stability and growth during the transition to adulthood: a three-wave longitudinal study

During the transition to adulthood individuals typically settle into adult roles in love and work. This transition also involves significant changes in personality traits that are generally in the direction of greater maturity and increased stability. Competing hypotheses have been offered to account for these personality changes: The intrinsic maturation hypothesis suggests that change trajectories are endogenous, whereas the life-course hypothesis suggests that these changes occur because of transactions with the social environment. This study investigated the patterns and origins of personality trait changes from ages 17 to 29 using 3 waves of Multidimensional Personality Questionnaire data provided by twins. Results suggest that (a) trait changes were more profound in the first relative to the second half of the transition to adulthood; (b) traits tend to become more stable during the second half of this transition, with all the traits yielding retest correlations between .74 and .78; (c) Negative Affectivity declined over time, and Constraint increased over time; minimal change was observed on agentic or communal aspects of Positive Emotionality; and (d) both genetic and nonshared environmental factors accounted for personality changes. Overall, these genetically informed results support a life-course perspective on personality development during the transition to adulthood.     

Model learning for robot control: a survey

Models are among the most essential tools in robotics, such as kinematics and dynamics models of the robot's own body and controllable external objects. It is widely believed that intelligent mammals also rely on internal models in order to generate their actions. However, while classical robotics relies on manually generated models that are based on human insights into physics, future autonomous, cognitive robots need to be able to automatically generate models that are based on information which is extracted from the data streams accessible to the robot. In this paper, we survey the progress in model learning with a strong focus on robot control on a kinematic as well as dynamical level. Here, a model describes essential information about the behavior of the environment and the influence of an agent on this environment. In the context of model-based learning control, we view the model from three different perspectives. First, we need to study the different possible model learning architectures for robotics. Second, we discuss what kind of problems these architecture and the domain of robotics imply for the applicable learning methods. From this discussion, we deduce future directions of real-time learning algorithms. Third, we show where these scenarios have been used successfully in several case studies.     

Attentional disengagement in adults with Williams syndrome

Williams syndrome (WS) is a neurodevelopmental disorder characterized by a distinctive behavioral and cognitive profile, including widespread problems with attention. However, the specific nature of their attentional difficulties, such as inappropriate attentional allocation and/or poor attentional disengagement abilities, has yet to be elucidated. Furthermore, it is unknown if there is an underlying difficulty with the temporal dynamics of attention in WS or if their attentional difficulties are task-dependent, because previous studies have examined attention in established areas of deficit and atypicality (specifically, visuospatial and face processing). In this study, we examined attentional processing in 14 adults with WS (20–59 years) and 17 typically developing controls (19–39 years) using an attentional blink (AB) paradigm. The AB is the decreased ability to detect a second target when it is presented in close proximity to an initial target. Overall, adults with WS had an AB that was prolonged in duration, but no different in magnitude, compared with typically developing control participants. AB performance was not explained by IQ, working memory, or processing speed in either group. Thus, results suggest that the attention problems in WS are primarily due to general attentional disengagement difficulties rather than inappropriate attentional allocation.     

Examination of Gender-role Portrayals in Television Advertising across Seven Countries

This study examined the roles of cultural (Hofstede??s Masculinity value dimension??i.e., Gender of Nations), country-level (Gender-related Development Index), and execution-level (product type or gender of the typical user) factors in understanding gender-role portrayals in television advertising. Using content analysis methodology, we compared the gender and occupation of the prominent character and the gender of the voice-over across 2,608 television commercials in Brazil, Canada, China, Germany, South Korea, Thailand, and the United States. Results of regression analyses revealed that cultural and country factors predicted the gender of the voice-over only whereas product type consistently conformed with the gender of the prominent character. Overall, males were featured in prominent visual and auditory roles, while females were still portrayed in stereotypical ways.     

After the deal: Talk, trust building and the implementation of negotiated agreements

The success of a negotiated agreement depends on implementation and implications for future exchange between the parties. This paper examines structural, affective and contractual factors that influence implementation behavior. Predictions derived from contract theory and recent negotiation theories were tested in two laboratory studies involving the negotiation of an employment contract. In Experiment 1 trust formation facilitated by so-called “cheap” talk and the provision of a sufficient contingent contract promoted vigorous contract implementation. Positive affect induced in the employer prior to negotiation had no discernable effect on subsequent implementation. In Experiment 2 induced employee positive affect did motivate implementation behavior but the effect hinged on the form of the contract. Small talk before contracting increased employee’s willingness to be financially vulnerable in subsequent exchange with the employer. Implications for general negotiation theory are considered.     

Examining the Criterion‐Related Validity of the Employee Screening Questionnaire: A Three‐Sample Investigation

Across three samples (N=475, 358, and 112), the authors examined the criterion‐related validity of the Employee Screening Questionnaire (ESQ), a brief forced‐choice measure of integrity in the workplace. Results suggested that ESQ scores correlate highly with self‐ and other‐reports of counterproductive work behaviors (rs of .59, .50, and .47 on the consolidated scores), as well as self‐reports of job satisfaction (rs of ?.41 and ?.22 on the consolidated scores), and intention to leave the organization (rs of .30 and .21 on the consolidated scores). No predictive bias by gender was found for the ESQ scores. Based on these results, the authors encourage more research on the use of personality‐based (covert), forced‐choice integrity tests in selection contexts.     

A retrospective analysis of the relation between resurgence and renewal of behavior targeted for reduction

Functional communication training (FCT) is an evidence-based treatment for behavior targeted for reduction that often combines extinction for target responses and arranges functionally equivalent reinforcement for alternative behavior. Long-term effectiveness of FCT can become compromised when transitioning from clinic to nonclinic contexts or thinning reinforcement schedules for appropriate behavior. Such increases in targeted behavior have been conceptualized as renewal and resurgence, respectively. The relation between resurgence and renewal has yet to be reported. Therefore, the present report retrospectively analyzed the relation between renewal and resurgence in data collected when implementing FCT with children diagnosed with developmental disabilities. We found no relation when evaluating all 34 individuals assessed for resurgence and renewal or a subset of individuals exhibiting both resurgence and renewal. These findings suggest that one form of relapse may not be predictive of another form of relapse.     

Manipulations of attention enhance self-regulation

Successful goal-directed behavior requires self-regulation to override competing impulses. Emerging evidence suggests that attention may mediate such acts, but little is known about the specific operations through which attention might influence self-regulation. Here we test this often-implicit assumption by manipulating attention mechanisms in two ways: one controlling the inhibition of inappropriate responses; the other controlling the breadth of attention. Participants significantly improved their performance on a self-regulation task after practice on a response inhibition task (Experiment 1) and after the induction of a broad focus of attention in a visual discrimination task (Experiment 2). We propose that such manipulations enhance self-regulation by engaging mechanisms that enhance the salience of goal-related representations and reduce the activation of competing goal-irrelevant neural representations. By more efficiently resolving conflict among the signals vying to drive behavior, pre-engaging attention may also help to conserve resources needed for continued self-regulation.     

Perceived sacrifice and few alternatives commitments: The motivational underpinnings of continuance commitment's subdimensions

Using work on self-concepts and Conservation of Resources theory, the present research examined the motivational underpinnings of continuance commitment's subcomponents of perceived sacrifice and few alternatives. Study 1 (N = 208) found job scope to be positively related to perceived sacrifice commitment, and negatively related to few alternatives commitment. Study 2 (N = 147) found empowerment's meaning dimension to be positively related to perceived sacrifice commitment and self-determination to be negatively linked to few alternatives commitment. In Study 3 (N = 301), perceived sacrifice commitment was found to be positively related to feedback seeking, while few alternatives commitment was negatively related to it. Finally, Study 4 (N = 278) found perceived sacrifice commitment to be positively, and few alternatives commitment negatively, related to career success (promotion and pay raise decisions). Implications of these findings are discussed.