Life events and personality predicting loneliness among centenarians: findings from the Georgia Centenarian Study

Regarding the purpose of this study, the researchers analyzed the roles that both life events (life-time positive events and life-time negative events) and personality (Neuroticism, Extraversion, Trust, Competence, and Ideas) played in participants of the Georgia Centenarian Study. The researchers analyzed these variables to determine whether they predicted loneliness. Analyses indicated that life-time negative events significantly predicted loneliness. In essence, the higher was the number of life-time negative life events, the higher was the loneliness score. Moreover, Neuroticism, Competence, and Ideas were all significant predictors of loneliness. The higher was the level of Neuroticism and intellectual curiosity, the higher was the level of loneliness, whereas the lower was the level of Competence, the higher was the level of loneliness. In addition, both life-time positive and life-time negative life events were significant predictors of Neuroticism. The higher was the number of life-time positive events, the lower was the level of Neuroticism, and the higher was the number of life-time negative events, the greater was the level of Neuroticism. These results indicated that life-time negative events indirectly affect loneliness via Neuroticism. Last, our results indicated that the Competence facet mediated the relationship between lifetime negative life events and loneliness. Life-time negative life events significantly affected centenarians' perceived competence, and Competence in turn significantly affected the centenarians' loneliness. These results as a whole not only add to our understanding of the link between personality and loneliness, but also provide new insight into how life events predict loneliness.     

Can good science be logically inconsistent?

Some philosophers have recently argued that contrary to the traditional view, good scientific theories can in fact be logically inconsistent. The literature is now full of case-studies that are taken to support this claim. I will argue however that as of yet no-one has managed to articulate a philosophically interesting view about the role of logically inconsistent theories in science that genuinely goes against tradition, is plausibly true, and is supported by any of the case studies usually given.     

Spotting animals in natural scenes: efficiency of humans and monkeys at very low contrasts

The ability of monkeys to categorize objects in visual stimuli such as natural scenes might rely on sets of low-level visual cues without any underlying conceptual abilities. Using a go/no-go rapid animal/non-animal categorization task with briefly flashed achromatic natural scenes, we show that both human and monkey performance is very robust to large variations of stimulus luminance and contrast. When mean luminance was increased or decreased by 25–50%, accuracy and speed impairments were small. The largest impairment was found at the highest luminance value with monkeys being mainly impaired in accuracy (drop of 6% correct vs. <1.5% in humans), whereas humans were mainly impaired in reaction time (20 ms increase in median reaction time vs. 4 ms in monkeys). Contrast reductions induced a large deterioration of image definition, but performance was again remarkably robust. Subjects scored well above chance level, even when the contrast was only 12% of the original photographs (≈81% correct in monkeys; ≈79% correct in humans). Accuracy decreased with contrast reduction but only reached chance level -in both species- for the most extreme condition, when only 3% of the original contrast remained. A progressive reaction time increase was observed that reached 72 ms in monkeys and 66 ms in humans. These results demonstrate the remarkable robustness of the primate visual system in processing objects in natural scenes with large random variations in luminance and contrast. They illustrate the similarity with which performance is impaired in monkeys and humans with such stimulus manipulations. They finally show that in an animal categorization task, the performance of both monkeys and humans is largely independent of cues relying on global luminance or the fine definition of stimuli.     

Technological and organizational innovation: A dilemma of fundamental change and participation

This article reports the findings of a study of graduates' expectations and experiences of organizational and individual career management practices and of the relationships between organizational career management, career selfmanagement, and organizational commitment. It finds that, despite the prevailing rhetoric that individuals must take responsibility for their own careers, organizations are still heavily involved in the career management of their graduate recruits. Furthermore, organizational career management makes a positive contribution to graduates' organizational commitment, whereas most forms of career self-management do little to discourage it. However, graduates appear to benefit from different kinds of career management at different stages in their first 10 years in the organization.     

Factors influencing self-rated fear to a novel animal

Abstract

This study attempted to assess some of the factors that influence self-rated fear of a novel animal. Subjects were: (1) shown a picture of an animal that was novel to them; (2) given a brief snippet of information about it; and then (3) asked to make a variety of assessments about their likely reaction to the animal. Self-reported levels of fear to the novel animal were significantly higher if subjects were told that people were generally frightened of the animal. However, the extent to which individual levels of disgust sensitivity informed fear to the novel animal was dependent on: (1) the information that subjects were given about the reasons why other people might fear the animal; and (2) the interaction between disgust sensitivity levels and other beliefs about the animal (such as beliefs about being attacked by the animal or being made ill by the animal). Although disgust sensitivity has been found to be a factor important in generating fear to fear-relevant animals, the present study suggests that it also plays an important role in informing fear to a novel animal.     

Predictors of distress following an acute stroke: Disability,control cognitions,and satisfaction with care

Abstract

Whilst clinical predictors of distress following acute stroke have been identified (e.g., lesion site), this study hypothesised that greater prediction would be achieved by addressing individual differences in patients' cognitions (e.g., perceived control, satisfaction with care, recovery confidence) and coping responses. We examined these relationships in a longitudinal study of 71 survivors of acute stroke. Measures were collected at three time points: 10-20 days after the stroke, and one month and six months after hospital discharge. Stepwise multiple regression analyses were performed using only significant bivariate correlates and where the dependent variables were residualised scores which controlled for baseline levels of anxiety and depression. Satisfaction with treatment and confidence in recovery at one month predicted anxiety outcome at six months, and satisfaction with advice and confidence in recovery at one month predicted depression outcome at six months. These results offer tentative suggestions for interventions targeting patient cognitions and improving patient satisfaction.     

Relationships between personality variables and bizarreness effects in free recall

Relationships between 6 personality variables and each of 3 different measures of recall for bizarre and common sentences were examined. The personality variables investigated included measures of sensation seeking, novelty experiencing, desire for novelty, arousal-seeking tendency, social potency, and conservatism. Recall was measured in terms of sentences accessed, target words recovered per accessed sentence, and misplaced target words. The results indicated the typical pattern of bizarreness effects on recall and significant relationships between personality variables and these effects. Arousal seeking and conservatism were positively related to a bizarreness advantage in sentences accessed. Additionally, high social potency was related to the recovery of more details from common than bizarre sentences, and high desire for novelty was related to a greater bizarre misplacement effect. The results are discussed in terms of orienting and defensive responses to bizarreness.