The breakdown of semantic knowledge: insights from a statistical model of meaning representation

Investigations of patients with semantic category-specific deficits have revealed a wide range of performance and variability in categories that are impaired or spared; this variability presents a challenge to accounts of category specificity. Accounts based only on impairment to semantic features of a particular type (e.g., visual), as well as accounts based only on featural properties (e.g., feature intercorrelations), are insufficient to explain the variability of patients' performance. A first goal of the paper is to discuss how a hybrid account incorporating both a level of organization according to feature types (a level of nonlinguistic conceptual representations) and a level of organization dictated by featural properties may provide a more comprehensive account of the cases reported in the literature. The second and most novel goal of the study reported here is to derive from our hybrid account a series of novel predictions concerning the representation and impairment of a different domain of knowledge: knowledge of actions and events, a domain of knowledge that has received remarkably little attention to date.     

On the Concept of Psychological

The idea that certain mental phenomena (e.g. emotions, depression, anxiety) can represent risk factors for certain somatic diseases runs through common thinking on the subject and through a large part of biomedical science. This idea still lies at the focus of the research tradition in psychosomatic medicine and in certain interdisciplinary approaches that followed it, such as psychoneuroimmunology. Nevertheless, the inclusion in the scientific literature of specifically mental phenomena in the list of risk factors pertaining to a specific pathological condition would seem, to say the least, problematic when not completely absent, unlike what happens for certain behavioural factors, such as smoking, sedentary life, and alcohol abuse. It is also significant that insurance companies and health and welfare services do not pay for interventions and treatment for states of anxiety, disorders of mood and of the personality, alexithymia and stress reduction, as means of prevention or treatment of somatic diseases, as instead they do for the treatment of tobacco addiction. However, as I shall endeavour to argue here, there are numerous and well grounded reasons why this different consideration of psychic conditions compared with behaviours is valid and must be maintained in the evaluation of pathogenetic risk factors.     

Burnout and self-perceptions of physical fitness in a sample of Italian physical education teachers

This study examined the relations of physical education teachers' burnout with some individual variables, including teachers' self-perceived physical fitness and the perceived influence of personal fitness on teaching. Participants were 219 Italian physical education teachers in secondary school. Demographic and professional information, ratings of self-perception of physical condition, and the Italian version of the Maslach Burnout Inventory were recorded. Compared to the data of a normative sample, average scores on the three dimensions of the Maslach Burnout Inventory (Emotional Exhaustion, Depersonalisation, and Reduced Personal Accomplishment) were found. There were statistically significant associations among Reduced Personal Accomplishment, the self-perception of physical fitness, and the perception of the influence of personal fitness on teaching. Women reported scores on Emotional Exhaustion and Reduced Personal Accomplishment indicative of greater severity than men. No significant differences appeared to be related to the years of teaching. Recommendations for further studies are discussed.