Practice,refractive error,and feedback as factors influencing peripheral motion thresholds

Motion thresholds were determined in the fovea and in the horizontal peripheral meridian under conditions of practice, correction of refractive error, and feedback. While foveal determinations did not change significantly, peripheral motion thresholds were lowered for all conditions. Both practice and practice with feedback produced significantly better motion discrimination, these effects showing a longevity of several months. However, the largest improvement resulted from correction of peripheral refractive error, which also reduced individual differences. This suggests that peripheral sensitivity to movement is ordinarily limited primarily by dioptric rather than neural factors. Implications for perceptual learning and peripheral vision research are discussed.     

Quantenphyfikalifche bemerkungen zur biologie und pfychologie

Ohne Zusammenfassung     

RECOVERY TIME AFTER GLARE: An experimental investigation of glare after-effect under night driving conditions

Preliminary experiments suggest that the changes in adaptation level due to glaring light in a night traffic meeting situation give no practically important deterioration of visibility. To obtain a more complete answer, one experiment was done in a 'real' night driving situation, and two experiments were carried out using a glare simulator, aimed at quantifying the change in the level of adaptation in terms of redetection time of a target made invisible due to glare. The effect of three factors were studied: duration of glare, maximum illuminance of glare, and contrast ratio between background and target. The preliminary suggestions were fully confirmed.     

Parental Involvement in Elite Junior Slalom Canoeing

This study's aim was to examine elite youth athletes’ views on parental involvement in training, competition, and at home. Eight canoeists were interviewed up to 4 times and completed written diaries over a 6-week period. Results indicated that parents were generally deemed to have a positive influence through domain specific and cross-domain behaviors. Positive behaviors included parents focusing on their children's holistic development at home, motivational and constructive evaluation at training, and limiting demands on athletes through the provision of practical support, reading and understanding the situation and their child, and supporting the development of growth mind-set across all domains.     

Grabbing Your Bootstraps: Threats to Economic Order Boost Beliefs in Personal Control

Individuals are motivated to maintain perceptions of order and predictability in the social environment. Compensatory control theory proposes that when an individual’s perception of her or his own control is threatened, the individual can turn to external systems that may provide a perception of control (e.g., organized government). Conversely, the theory also predicts that when external systems of control are threatened, individuals may respond by exaggerating perceptions of personal control, although this effect has received relatively little empirical support. In the present study, we examined how a threat to an external system of economic control affects individual perceptions of personal control. Specifically, we found that a threat to the perceived distribution of economic resources based on hard work and effort (i.e., meritocracy) led to greater perceptions of personal control. Moreover, this increase in personal control directly increased participants’ optimism about their future economic outcomes. This study provides important insight into the broad influence of external systems on individuals' perceptions of personal control and assessment of future action.     

Conflict Minerals in Electronic Systems: An Overview and Critique of Legal Initiatives

The Democratic Republic of Congo has vast natural resources, many of which are regularly exploited by the electronics industry. Unfortunately, in addition to these resources, there are widespread human rights abuses committed by armed groups entrenched in the eastern part of the Democratic Republic of Congo. These armed groups are using profits from these minerals as a source of funding. Their human rights abuses have led to a growing humanitarian interest in the region and prompted the international community to action. This paper explores the conflicts in the Democratic Republic of Congo, provides an understanding of the link between human rights abuses and conflict minerals, and interprets and critiques the legal actions of the international community.     

Personality,Ideological Attitudes,and Group Identity as Predictors of Political Behavior in Majority and Minority Ethnic Groups

Prior research on personality and politics has largely investigated relationships using national samples from North America and Europe. In contrast, we used multigroup path analysis to assess how Big Five personality, ideological attitudes (RWA, SDO), and group identities (National and Ethnic Identification) predicted right versus left Political Behavior (party support, past voting, present voting intention) across majority and minority ethnic groups in a New Zealand national sample (N = 6,333). The effects of personality on ideological attitudes and group identities were mostly invariant across ethnic groups and consistent with prior findings. In contrast, the effects of ideological attitudes on Political Behavior varied across ethnic groups being moderately strong for the European majority but nonsignificant for the minorities. Group identities had little effect on Political Behavior. We discuss cultural and contextual factors that might account for this disconnect between ideology and politics among the minority ethnic groups.