Neuroaesthetics and beyond: new horizons in applying the science of the brain to the art of dance

Throughout history, dance has maintained a critical presence across all human cultures, defying barriers of class, race, and status. How dance has synergistically co-evolved with humans has fueled a rich debate on the function of art and the essence of aesthetic experience, engaging numerous artists, historians, philosophers, and scientists. While dance shares many features with other art forms, one attribute unique to dance is that it is most commonly expressed with the human body. Because of this, social scientists and neuroscientists are turning to dance and dancers to help answer questions of how the brain coordinates the body to perform complex, precise, and beautiful movements. In the present paper, we discuss how recent advances in neuroscientific methods provide the tools to advance our understanding of not only the cerebral phenomena associated with dance learning and observation but also the neural underpinnings of aesthetic appreciation associated with watching dance. We suggest that future work within the fields of dance neuroscience and neuroaesthetics have the potential to provide mutual benefits to both the scientific and artistic communities.     

Assessing the local identifiability of probabilistic knowledge structures

Given a collection Q of problems, in knowledge space theory Doignon & Falmagne, (International Journal of Man–Machine Studies 23:175–196, 1985) the knowledge state of a student is the collection K ? Q of all problems that this student is capable of solving. A knowledge structure is a pair (Q, ), where is a collection of knowledge states that contains at least the empty set and Q. A probabilistic knowledge structure (PKS) is a knowledge structure (Q, , π), where π is a probability distribution on the knowledge states. The PKS that has received the most attention is the basic local independence model BLIM; Falmagne & Doignon, (British Journal of Mathematical and Statistical Psychology 41:1–23, 1988a, Journal of Mathematical Psychology 32:232–258, 1988b). To the best of our knowledge, systematic investigations in the literature concerning the identifiability of the BLIM are totally missing. Based on the theoretical work of Bamber and van Santen (Journal of Mathematical Psychology 29:443–473, 1985), the present article is aimed to present a method and a corresponding computerized procedure for assessing the local identifiability of the BLIM, which is applicable to any finite knowledge structure of moderate size.     

Defending psychopathy: an argument from values and moral responsibility

How psychopaths and their capacity for moral action are viewed is not only philosophically interesting but is also important and relevant for policy. The philosophical discussion of psychopathy has focussed upon the psychological faculties that are prerequisites for moral responsibility and empirical findings regarding psychopathy that are relevant to philosophical accounts of moral understanding and motivation. However, there are legitimate worries about whether psychopathy is a robust scientific construct, and there are risks attached to reifying psychopathy or other psychiatric constructs. We defend the concept of psychopathy by pointing out the relevance of empirical studies about it for our ordinary practices of ascribing moral responsibility and folk psychological accounts of moral understanding and motivation.     

The Dialogical Dance: Self,Identity Construction,Positioning and Embodiment in Tango Dancers

Argentine tango is a complex phenomenon, involving music, dancing and lifestyle, today practiced by hundreds of thousands of people worldwide. This is already a good reason for psychology to make it an object of study. Besides, studying tango could also help to develop a dialogical way of theorizing and a dialogical methodology, taking into account both the genetic historical and eso-systemic dimensions and the individual experiencing. As any other product of human psyche, tango creates an universal and abstract representation of life starting from very situated and individual acts. Such institutionalized representation, which is at the same time epistemological, ethical and aesthetical, becomes a tradition -that is the framework distanced from the individual immediate experience- within which the meaning of the experiences to be make sense in return. To illustrate this epistemological and methodological stance, a history of the development of tango as dialogical social object first is sketched. Then, an ethnographic study about the Self actuation in a community of Italian tango dancers is presented. Results show how participants construct and actuate their identities in a dialogue between their I-positions inside and outside tango community.     

An Analysis of Item Response Theory and Rasch Models Based on the Most Probable Distribution Method

The most probable distribution method is applied to derive the logistic model as the distribution accounting for the maximum number of possible outcomes in a dichotomous test while introducing latent traits and item characteristics as constraints to the system. The item response theory logistic models, with a particular focus on the one-parameter logistic model, or Rasch model, and their properties and assumptions, are discussed for both infinite and finite populations.     

The Contribution of Job Happiness and Job Meaning to the Well-Being of Workers from Thriving and Failing Companies

In a time of global economic crisis, workers’ well-being is of paramount concern for both organizations and society at large. Conceptualizations within positive psychology distinguish between hedonic and eudaimonic well-being components, and call for the need to include them in an integrated perspective. Within this framework, the present study aimed at investigating the impact of situational uncertainty on eudaimonic and hedonic well-being, and the spillover effects of work into individuals’ lives. Data were collected from 85 Italian employees at a thriving insurance company and at a failing one. Participants were administered Job Content Questionnaire, Eudaimonic and Hedonic Happiness Investigation, Satisfaction with Life Scale, and Psychological Wellbeing Scales. Data were analyzed through hierarchical regression analyses. Concerning well-being at work, employees at the failing company reported higher job insecurity and lower job happiness compared to employees at the thriving company, while job meaning scores did not differ between groups. Concerning general well-being, an unexpected positive association was found between positive relations and situational uncertainty. A spillover effect of job happiness and meaning on life satisfaction, environmental mastery, and autonomy was also detected. In particular, a moderating effect of job meaning was identified, showing that attributing high importance to one’s job had wide affective consequences, spilling over to global life evaluations. Findings bring forward practical suggestions for well-being promotion, in terms of shifting domain importance (Wu Journal of Happiness Studies 10:37–47, 2009), and investing in multiple life areas (Sirgy and Wu Journal of Happiness Studies 10:183–196, 2009) for the promotion of a balanced life.     

Prevalence and Significant Determinants of Post-traumatic Stress Disorder in a Large Sample of Patients with Multiple Sclerosis

Chronic and life-threatening neurodegenerative diseases may be associated with post-traumatic stress disorder (PTSD). Therefore, the current study was an investigation of the prevalence of PTSD in multiple sclerosis (MS) patients, and identification of significant determinants of PTSD. Two hundred thirty-two MS patients were consecutively recruited and screened for the presence of PTSD with the Impact of Event Scale-Revised, corroborated by the Structured Clinical Interview for DSM-IV. Furthermore, participants were administered the Hospital Anxiety and Depression Scale and the Fatigue Severity Scale. Twelve patients (12/232, i.e. 5.17 %) were diagnosed as suffering from PTSD. Levels of education, anxiety and depression were significant determinants of the presence of PTSD. The role played by the levels of education, anxiety and depression in determining the presence of PTSD has been discussed. Further research on the psychological features of neurodegenerative diseases is urgently needed in order to plan appropriate treatments and improve patients’ quality of life.     

Alexander of Aphrodisias and the Heterodox dictum de omni et de nullo

Aristotle's explanation of what is said ‘of every’ and ‘of none’ has been interpreted either as involving individuals (of which something is said ‘of every’, or of which something is said ‘of none’), or as regarding exclusively universal terms. I claim that Alexander of Aphrodisias endorsed this latter interpretation of the dictum de omni et de nullo. This interpretation affects our understanding of Alexander's syllogistic: as a matter of fact, Alexander maintained that the dictum de omni et de nullo is one of the core principles of syllogistic.     

What are the Causes of the Attention Deficits Observed in Children with Dyslexia?

Dyslexic children often show attention problems at school, but it is not clear the nature of their impairments. The aim of this study was to analyze whether verbal processing artefacts could mediate attention deficits. Forty-seven children (22 dyslexics and 25 controls), aged between 7 to 12, were assessed through an ADHD rating scale and a battery of tasks tapping different attentional processes (selective, sustained, executive, and orienting). Phonological measures were used as covariates. Children with dyslexia showed attentional impairments (using both rating scales and neuropsychological tasks); however their performance was significantly affected by phonological performance. In conclusion, dyslexics may be inattentive at school because they are slow processors, in particular when they are presented with verbal stimuli.     

Differentiated forgetting rates of spatial knowledge in humans in the absence of repeated testing

Spatial knowledge, necessary for efficient navigation, comprises route knowledge (memory of the landmarks along a route) and survey knowledge (map-like). Available data on the retention in humans of spatial knowledge show that this does not decline systematically over months or years. Here, two groups of participants elaborated route and survey knowledge during navigation in a complex virtual environment before performing route and survey tasks. Both groups were tested 5 minutes after learning and 3 months later, while one group was also tested 1 week and 1 month later (repeated testing). Performance was similar in both groups on the first testing session, remained stable in the repeated tested group, but decreased in the non-repeated tested group, especially on route tasks. These results are the first to reveal a substantial and selective decline of spatial knowledge, occurring only if there is no possibility of reactivating knowledge along repeated testing.