Cognitive abnormalities and cerebral perfusion defects in a community-dwelling cohort of elderly men with MMSE within the normal range

Objectives: Mini Mental State Examination’s (MMSE’s) sensitivity in its upper level is questioned, hence we investigated cognitive abnormalities and defects in regional cerebral blood flow (rCBF) in elderly with MMSE scores ≥24.

Methods: One hundred and four men at age 81 with MMSE scores ≥24 (mean 28.4 ± 1.7), no dementia or stroke, were examined with neuropsychological test battery, and their rCBF was estimated using ^99mTc-HMPAO SPECT.

Results: MMSE was very sparsely correlated with rCBF. Instead, visuo-spatial tests were correlated with rCBF in parietal and occipital lobe, verbal tests with rCBF in frontal and temporal-parietal lobes, and most of all between Digit Symbol and all rCBF regions, especially in subcortical gray and white matter. In a cluster of low achievers, test of Synonyms, followed by Digit Symbol and Benton test, had highest discriminatory importance. Low achievers had generalized rCBF changes especially in subcortical areas. Only lower scores on two MMSE items, figure drawing and calculation, could discriminate the clusters.

Conclusion: A substantial number of octogenarian men with MMSE ≥ 24p have widespread rCBF changes corresponding to a decreased speeded performance and verbal capacity.     

Job demands and resources: Flourishing and job performance in South African universities of technology settings

We investigated the extent to which perceived job demands and resources influenced work-related flourishing and job performance among academic staff in South African universities of technology. Participants were 339 lecturers from three universities of technology (female = 53.8%; junior lecturers = 15.7%; mean age = 45 years, SD = 10 years; job tenure = 77.3% more than five years). Lecturers completed job demands, job resources, flourishing at work, and job performance measures. We utilised latent variable modelling to predict flourishing at work and job performance scores from job demands and resources scores. The results indicated job resources (specifically role clarity, advancement, and remuneration) to predict flourishing at work. Role clarity and flourishing at work predicted job performance. In line with job demands theory, the availability of resources was positively associated with flourishing at work and job performance of academic employees.     

Kalmár's Argument Against the Plausibility of Church's Thesis

In his famous paper, An Unsolvable Problem of Elementary Number Theory, Alonzo Church (1936) identified the intuitive notion of effective calculability with the mathematically precise notion of recursiveness. This proposal, known as Church's Thesis, has been widely accepted. Only a few papers have been written against it. One of these is László Kalmár's An Argument Against the Plausibility of Church's Thesis from 1959. The aim of this paper is to present Kalmár's argument and to fill in missing details based on his general philosophical thoughts on mathematics.     

Creativity in Middle Childhood: Influence of Perceived Maternal Sensitivity,Self-esteem,and Shyness

This study aimed to examine the relationship between maternal sensitivity and affect, as perceived by the child, and childhood creativity. Self-esteem and shyness were considered mediating factors. A total of 151 elementary school pupils were tested on verbal and pictorial creativity, self-esteem, and perceived maternal affect and sensitivity. Their teachers assessed each child’s shyness in their relations at school. A Multiple Indicators and Multiple Causes (MIMIC) model of the causal relationships among the study’s variables was tested. Results supported this theoretical model of causality. Maternal sensitivity had a significant, direct, positive effect on self-esteem, and a direct negative effect on shyness. In addition, self-esteem had a direct positive effect on verbal creativity and shyness had a negative direct effect on verbal and pictorial creativity. The indirect effect of maternal sensitivity on verbal creativity was significant via both self-esteem and shyness. The findings were discussed in terms of their implications for child development.     

Exploratory study of mindfulness in modern-day sport psychology consulting relationships

This study explored sport psychology practitioners’ mindfulness in relation to the quality of consulting relationships and value within contemporary practice. A total of 34 sport psychology practitioners from South Africa (n = 22, females = 41%) and the United Kingdom (n = 12, females = 25%) (Private practice = 68%; 15+ years’ experience = 44%) participated in this study. Data were gathered, using the Five Factor Mindfulness Questionnaire (FFMQ-SF), Working Alliance Inventory Short-Revised Form (WAI-SRT), and interviews. Spearman’s rank order correlation and thematic content analyses were employed to analyse the data. Higher levels of practitioners’ mindfulness were associated with superior consulting relationships. Specifically, positive correlations were observed between mindfulness attributes of observing, describing, non-reacting ability, and quality of the therapeutic bond, agreement on goals, and agreement on goals and tasks with clients respectively. Thematic analysis suggested mindfulness to facilitate accurate attending to present-moment experiences, and empathetic understanding of clients’ unique needs.     

An Interpretation of Łukasiewicz’s 4-Valued Modal Logic

A simple, bivalent semantics is defined for ?ukasiewicz’s 4-valued modal logic ?m4. It is shown that according to this semantics, the essential presupposition underlying ?m4 is the following: A is a theorem iff A is true conforming to both the reductionist (rt) and possibilist (pt) theses defined as follows: rt: the value (in a bivalent sense) of modal formulas is equivalent to the value of their respective argument (that is, ‘ A is necessary’ is true (false) iff A is true (false), etc.); pt: everything is possible. This presupposition highlights and explains all oddities arising in ?m4.     

Examining the Roles of Work Autonomous and Controlled Motivations on Satisfaction and Anxiety as a Function of Role Ambiguity

Past research in the self-determination theory has shown that autonomous motivation is associated with positive outcomes (e.g., work satisfaction), whereas controlled motivation is related to negative outcomes (e.g., anxiety). The purpose of the present research was to examine the moderating function of role ambiguity on the relationships between work autonomous and controlled motivations on the one hand, and work satisfaction and anxiety on the other. Six hundred and ninety-eight workers (449 men and 249 women) participated in this study. Results revealed that autonomous motivation was most strongly related to satisfaction when ambiguity was low. In addition, controlled motivation was most strongly related to anxiety when ambiguity was high. In other words, the present findings suggest that the outcomes associated with each form of motivation may vary as a function of role ambiguity. The present study thus offers meaningful insights for organizations, managers, and employees.     

The legitimizing role of accent on discrimination against immigrants

This article analyses the influence of accent on discrimination against immigrants by examining the hypothesis that accent leads to discrimination only in more prejudiced individuals, merely because people speaking with a native accent are perceived to be better qualified than those whose accent is non‐standard. In Study 1 (N = 71), we found that only prejudiced individuals use accent to discriminate against immigrants. In Study 2 (N = 124), we replicated this effect and found that the influence of accent on discrimination is mediated by the perceived quality of the accent. Study 3 (N = 105) replicated the previous results even after controlling for the effect of stereotyping. These results are the first experimental illustration of the hypothesis that accent triggers intergroup discrimination only among prejudiced individuals because they evaluate native accents as being qualitatively better than accents of immigrants, thereby legitimizing ingroup bias.