刻板印象威胁对学习困难中学生成就动机的影响

研究探讨学习困难中学生的刻板印象威胁及其对成就动机的影响。研究1采用实验法诱发学习困难中学生的刻板印象威胁,研究表明刻板印象威胁阻碍学习困难中学生心理旋转任务表现的提高。研究2在刻板印象威胁情境中,采用问卷法测量学习困难中学生的成就动机,刻板印象威胁组被试相比于对照组的成就动机水平较低,回避失败动机较高。研究3在刻板印象威胁诱发后加入自我肯定操纵,结果发现自我肯定组被试与对照组相比成就动机水平较高,回避失败动机水平较低。     

Adverse childhood experiences and autonomic regulation in response to acute stress: the role of the sympathetic and parasympathetic nervous systems

Background and objectives: After a previous report demonstrated blunted heart rate (HR) reactivity in association with adverse childhood experiences (ACEs) [Voellmin, A., Winzeler, K., Hug, E., Wilhelm, F. H., Schaefer, V., Gaab, J.,?…?Bader, K. (2015). Blunted endocrine and cardiovascular reactivity in young healthy women reporting a history of childhood adversity. Psychoneuroendocrinology, 51, 58–67. doi:10.1016/j.psyneuen.2014.09.008], the present analysis aimed at clarifying the role of the sympathetic and parasympathetic branches of the autonomic nervous system in this relationship.

Design and Methods: One hundred eighteen healthy young women provided data on ACEs and underwent psychosocial stress testing. Systolic blood pressure (SBP) and respiratory sinus arrhythmia (RSA, quantified by high-frequency HR variability) were assessed as measures of sympathetic and parasympathetic cardiovascular activity, respectively. A mediation model was calculated to test the indirect effects of ACEs on HR via SBP and RSA.

Results: The effect of ACEs on HR reactivity was mediated by SBP reactivity but not by RSA reactivity. ACEs were associated with reduced SBP at rest.

Conclusions: ACEs were associated with down-regulation in a measure of sympathetic but no alteration in a measure of parasympathetic cardiovascular stress reactivity in adulthood. Future research will need to clarify whether this indicates risk or resilience.     

Differentiating challenge reactivity from psychomotor activity in studies of children's psychophysiology: considerations for theory and measurement

Current methods of assessing children’s physiological “stress reactivity” may be confounded by psychomotor activity, biasing estimates of the relation between reactivity and health. We examined the joint and independent contributions of psychomotor activity and challenge reactivity during a protocol for 5- and 6-year-old children (N = 338). Measures of parasympathetic reactivity (respiratory sinus arrhythmia [RSA]) and sympathetic reactivity (preejection period [PEP]) were calculated for social, cognitive, sensory, and emotional challenge tasks. Reactivity was calculated relative to both resting and a paired comparison task that accounted for psychomotor activity effects during each challenge. Results indicated that comparison tasks themselves elicited RSA and PEP responses, and reactivity adjusted for psychomotor activity was incongruent with reactivity calculated using rest. Findings demonstrate the importance of accounting for confounding psychomotor activity effects on physiological reactivity.     

More than fair: Outcome dependence, system justification, and the perceived legitimacy of authority figures

Legitimacy is a source of power for authorities because it promotes voluntary deference on the part of followers. From a system justification perspective, there is also reason to believe that power is a source of perceived legitimacy. We report five studies demonstrating that in addition to procedural fairness and outcome favorability, outcome dependence is an independent contributor to perceived legitimacy. In two cross-sectional field studies and one panel study, we hypothesized and found that dependence on an authority figure is positively associated with appraisals of legitimacy, measured in terms of trust and confidence in, empowerment of, and deference to authority. These effects were demonstrated in educational, political, and legal settings. Two additional experiments provided direct causal evidence for the hypothesized effect on both perceived legitimacy and voluntary deference (i.e., acquiescence to additional requests). We also found that participants assigned to a high (vs. low) dependence condition judged their outcomes to be more favorable, despite the fact that the outcomes were identical in the two conditions; this effect was mediated by perceived legitimacy. Taken as a whole, these findings suggest that perceived legitimacy is enhanced not only when authorities exercise fair procedures and deliver favorable outcomes, but also when subordinates are dependent on them. Implications for society and the study of legitimacy and social power are discussed.     

Kant on the motive of (imperfect) duty

This paper argues that Kantians face a little discussed problem in accounting for how actions that fulfill imperfect duties can be morally motivated. It is widely agreed that actions that are performed from the motive of duty are performed through a recognition of the objective necessity of the action. It is also generally held that the objective necessity of an action consists in its rational non-optionality. Many actions that fulfill imperfect duties, however, are rationally optional. Given these constraints, it is impossible that such rationally optional actions (including, for instance, many acts of benevolence) could be performed from the motive of duty. After presenting the problem as one that Kantians should find genuinely pressing, this paper offers a solution by advancing an alternative to the conception of rational necessity widely shared by Kantians. On the alternative view presented here, an action is rationally necessary if and only if the justifying reasons that speak in favor of performing the action do not depend on any empirical and therefore contingent motivational source on the part of an agent. Such actions may well be rationally optional. Moral motivation is therefore possible even in the case of rationally optional actions. Abbreviations: The following abbreviations are used for Kant’s works. All translations are from Practical Philosophy, ed. Mary J. Gregor (Cambridge: Cambridge University Press, 1999). Citations are given by the abbreviation, the volume, and the page number from Kant’s Gesammelte Schriften, edited by the Royal Prussian Academy of Sciences (Berlin: Georg Reimer, later Walter deGruyter & Co., 1900–). G. Grundlegung zur Metaphysik der Sitten (Groundwork of the Metaphysics of Morals).

KpV Kritik der praktischen Vernunft (Critique of Practical Reason).

MS Die Metaphysik der Sitten (The Metaphysics of Morals).

     

Poor Imitative Performance of Unlearned Gestures in Children with Probable Developmental Coordination Disorder

It has been hypothesized that deficits in imitation, linked to abnormal functioning of the mirror neuron system (MNS), may contribute to the motor impairments associated with developmental coordination disorder (DCD). The authors aimed to examine imitation of complex novel postures and sequences of gestures in children with and without probable DCD (pDCD), using the postural praxis and sequencing praxis subtests of the Sensory Integration and Praxis Tests (Ayres, 1989 Ayres, A. J. (1989). Sensory Integration and Praxis Tests: SIPT manual. Los Angeles, CA: Western Psychological Services. [Google Scholar]). Participants were 29 boys with pDCD between 6.08 and 13.33 years old, and 29 group age-matched typically developing boys between 6.08 and 13.83 years old. Responses of children with pDCD on both imitation tasks were less accurate than controls, with group differences more apparent with increasing task complexity. Furthermore, as a group, children with pDCD were slower and had a higher number of non–mirror-imitated responses. There was considerable variability within the pDCD group, with some children displaying imitation scores within the normative range. Given the importance of imitation and visual learning for motor development, the difficulties in imitation displayed by some children with pDCD have the potential to impact on movement acquisition. Interventions to target imitation may be beneficial for these children. The results show that children with pDCD had difficulty imitating complex novel postures, children with pDCD had difficulty imitating gesture sequences, children with pDCD had slower responses than controls, group differences in imitation performance increased with task complexity, and not all children with pDCD displayed imitation deficits.