Definability and decidability of binary predicates for time granularity

In this paper we study the definability and decidability of binary predicates for time granularity in monadic languages interpreted over finitely and infinitely layered structures. We focus our attention on the equi-level (respectively equi-column) predicate constraining two time points to belong to the same layer (respectively column) and on the horizontal (respectively vertical) successor predicate relating a time point to its successor within a given layer (respectively column). We give a number of positive and negative results by reduction to/from a wide spectrum of decidable/undecidable problems.     

Psychometric intelligence dissociates implicit and explicit learning

The hypothesis that performance on implicit learning tasks is unrelated to psychometric intelligence was examined in a sample of 605 German pupils. Performance in artificial grammar learning, process control, and serial learning did not correlate with various measures of intelligence when participants were given standard implicit instructions. Under an explicit rule discovery instruction, however, a significant relationship between performance on the learning tasks and intelligence appeared. This finding provides support for Reber's hypothesis that implicit learning, in contrast to explicit learning, is independent of intelligence, and confirms thereby the distinction between the 2 modes of learning. However, because there were virtually no correlations among the 3 learning tasks, the assumption of a unitary ability of implicit learning was not supported.     

Action monitoring and perfectionism in anorexia nervosa

To study action monitoring in anorexia nervosa, behavioral and EEG measures were obtained in underweight anorexia nervosa patients (n=17) and matched healthy controls (n=19) while performing a speeded choice-reaction task. Our main measures of interest were questionnaire outcomes, reaction times, error rates, and the error-related negativity ERP component. Questionnaire and behavioral results indicated increased perfectionism in patients with anorexia nervosa. In line with their perfectionism and controlled response style patients made significantly less errors than controls. However, when controlling for this difference in error rates, the EEG results demonstrated a reduced error-related negativity in the patient group. These seemingly contradictory outcomes of improved performance and reduced error monitoring are discussed in relation with indications of anterior cingulate cortex hypoactivity in anorexia nervosa patients.     

Drive for thinness, affect regulation and physical activity in eating disorders: a daily life study

Using Ecological Momentary Assessment, the within patient associations between drive for thinness, emotional states, momentary urge to be physically active and physical activity were studied in 32 inpatients with an eating disorder. Participants received an electronic device and had to indicate at nine random times a day during 1 week their momentary drive for thinness, positive and negative emotional states and their urge to be physically active and physical activity. Multilevel analyses indicated that patients with higher mean levels for urge to be physically active were characterized by lower body mass index (BMI) and chronically negative affect whereas patients with higher mean levels for physical activity were characterized by lower BMI and higher dispositions for drive for thinness. In addition, within patient relations between drive for thinness and urge to be physically active were moderated by BMI and chronically negative affect whereas within patient relations between drive for thinness and physical activity were moderated by BMI. Finally, also positive emotional states were significantly associated with physical activity within patients. By using a daily process design, characteristics of physical activity were revealed that have not been identified with assessment methods that have a lower time resolution.     

Racism,Xenophobia, and Migration in Italy,a Post-Catholic Country

This paper looks at the present situation of xenophobia and racism in Italy through the lenses of land and displacement. It examines the relationship between the homeland and the phenomenon of migration – internal and international – from the beginning of the unitary unified state of Italy (1861) and the Catholic identity of Italian society. Colonialism opened the door to disdain for Black people, while fascism decreed racial laws against Jews without opposition from the Catholic hierarchy. After the Second World War, the Italian Republic banned any form of racism; but more recently the fear of the stranger has led to intolerance of migrants arriving in Italy because of war, violence, hunger, and poverty in their homelands. While Pope Francis, Italian bishops, and many Catholic associations and individuals have called for an attitude toward migrants based on the gospel, sentiments of racism and hate against foreigners are widely present among the population of a formerly Catholic country.     

Can residual lexical knowledge concern word form rather than word meaning?

We described a patient with a dramatic deficit of both word comprehension and naming but with good preservation of visual pictorial semantics. On word-picture matching, his performances were slightly better than expected based on the observed lexical semantic disorder; in addition, the patient, who maintained good preservation of his underlying phonology, showed a tendency to point to the picture phonologically related to the target. In order to interpret these data, we advanced the hypothesis that the patient, in spite of his virtually complete inability to name, would be able, in a word-picture matching task, to "covertly" (i.e., preverbally) retrieve the name from the picture and to use this name to attempt a match with the phonological form of the stimulus word. This mechanism, that we called "phonological" comprehension, would allow the identification of the correct target and would explain the choice of the phonologically related foil that was sometimes selected.     

Rational choices in wason's selection task

Sixty-eight subjects were asked to solve a series of six Wason selection problems by physically turning relevant cards over until they could say whether the rule was correct or false. In the first experiment most of the subjects misunderstood the rule they were asked to verify, different subjects misunderstanding in different ways, but commonly reading (a) top/underneath for one side/other side and (b) a dual conditional for if..., then.... However, a majority of subjects thereafter responded in complete logical consistency with the rule as they understood it to be. When the misunderstandings revealed in the first experiment were themselves presented as rules to be verified in a second experiment, performance was much more logical than is usually reported. It is concluded that the illogicality commonly associated with Wason's selection task is only apparent.     

Surprise in the Context of Achievement: The Role of Outcome Valence and Importance

Five experiments examined the eliciting conditions of surprise in achievement situations. The present research tested an extension of the commonly accepted approach of regarding surprise as an emotion elicited by the unexpectedness of events. Specifically, the present extension posits that outcome valence and importance have effects on expectancy formation and thereby on surprise if expectancies are disconfirmed. It is posited that an achievement outcome's valence, importance, and expectancy are confounded because positive valence and high importance of an outcome are correlated with high desirability, which in turn increases expectancy. Consequently, an important failure should contain the highest expectancy-disconfirmation and thus elicit the highest surprise. Furthermore, in contrast to a thesis proposed by Weiner, Russel, and Lerman (1978, 1979), surprise was expected to be independent of the attribution of an outcome to luck or chance. The results of all five studies supported the present reasoning in experiments using vignettes (Studies 1 to 4), as well as in an actual achievement situation (Study 5). All of these studies provide empirical evidence of the predicted interaction effect between outcome valence and importance on surprise elicitation via expectancy-disconfirmation and thus lend support to the present extension of the expectancy-disconfirmation approach. But contrary to the approach suggested by Weiner et al., no general or causal relationships were found between attributions and surprise.     

Comprehension of symbolic gestures in aphasia

One-hundred-and-twenty-eight patients with unilateral hemispheric damage (53 aphasics, 26 nonaphasic left, and 49 right brain-damaged patients) and 25 normal controls were given a test of symbolic gesture comprehension and other tests of verbal comprehension and of reproduction of symbolic gestures. On the test of symbolic gesture interpretation aphasic patients performed significantly worse than any other group of brain-damaged patients. Within the aphasic patients the inability to understand the meaning of symbolic gestures was highly related to the number of semantic errors obtained at a verbal comprehension test. On the contrary, only a mild relationship was found between comprehension and reproduction of symbolic gestures. Some implications of these findings are discussed.