Happiness, Markets, and Democracy: Latin America in Comparative Perspective

The literature on subjective well-being highlights the role of relative income differences, an issue which is particularly salient for the emerging market countries. We explore the demographic determinants of happiness in 17 countries in Latin America, as well as the effects of macroeconomic trends and attitudes about the market on happiness. We provide comparative reference with data from Russia and the United States. We find that the determinants of happiness in Latin America are remarkably similar to those in the advanced industrial countries. We also find a marked and negatively skewed perceptions gap between individuals' objective economic situations and their subjective evaluations in both Latin America and Russia. That gap, in turn, has negative effects on happiness. Inflation and unemployment have negative effects on happiness in both contexts, while pro-market attitudes and preference for democracy have positive effects.     

Behaviors of Swiss-Webster and C57/BL/6N sin mice in a fear/defense test battery

When confronted by an approaching threat stimulus (experimenter or laboratory rat), Swiss-Webster mice show initial flight, followed by freezing and defensive vocalization and biting, the latter only when escape is blocked. These defense patterns resemble those of the wild rat, suggesting that mice of this strain do not show the reductions in flight and defensive threat/attack that are typical of laboratory rats. C57/BL/6N Sin strain mice showed fewer avoidances to an approaching predator, as well as reduced vocalization and defensive biting, a pattern more similar to that of laboratory rats. As with rats, female mice appeared to be more defensive to a predator. They showed greater reactivity to dorsal contact and more frequent defensive biting and jump attacks than males of the same strains. These patterns of defensive behaviors suggest that, although strain differences in defense are substantial, laboratory mice are suitable for, and may offer several advantages in, the study of the genetic, endocrine, and pharmacological basis of antipredator defense. © 1995 Wiley-Liss, Inc.     

The clinical overlap between the corticobasal degeneration syndrome and other diseases of the frontotemporal spectrum: three case reports

The corticobasal degeneration syndrome has been suggested to be part of a complex of conditions (including the different subtypes of frontotemporal dementia and progressive supranuclear palsy), which reflect a spectrum of pathological substrates. This concept is supported by the frequent clinical overlap that can be observed among patients diagnosed with these conditions. We report three clinical cases, characterized by the overlap of the clinical features of corticobasal degeneration syndrome with, respectively, nonfluent progressive aphasia, progressive supranuclear palsy and semantic dementia. Current diagnostic criteria emphasize differences in clinical presentation, which probably reflect the preferential location of pathology in the early stages of disease. However, with disease progression, a considerable clinical overlap can be expected among the different syndromes. This concept should be extended not only to the cognitive and behavioural features of the frontotemporal dementia subtypes, but also to the movement disorders of corticobasal degeneration and supranuclear palsy.     

Switching between goals mediates the attentional blink effect

Humans are fundamentally limited in processing information from the outside world. This is particularly evident in the attentional blink (AB), the impaired ability to identify the second of two targets presented in close succession. We report findings from three experiments showing that the AB is significantly reduced when observers are set to achieve one single goal (reporting combinations of the two targets) instead of separate goals (reporting the two targets). This finding raises questions about the nature of AB, and suggests that processes involved in goal-switching must be taken into account by theories of the AB phenomenon.     

Facilitation and inhibition caused by the orienting of attention in propositional reasoning tasks

In an attempt to study the orienting of attention in reasoning, we developed a set of propositional reasoning tasks structurally similar to Posner's (1980) spatial cueing paradigm, widely used to study the orienting of attention in perceptual tasks. We cued the representation in working memory of a reasoning premise, observing whether inferences drawn using that premise or a different, uncued one were facilitated, hindered, or unaffected. The results of Experiments 1a, 1b, 1c, and 1d, using semantically (1a-1c) or statistically (1d) informative cues, showed a robust, long-lasting facilitation for drawing inferences from the cued rule. In Experiment 2, using uninformative cues, inferences from the cued rule were facilitated with a short stimulus onset asynchrony (SOA), whereas they were delayed when the SOA was longer, an effect that is similar to the “inhibition of return” (IOR) in perceptual tasks. Experiment 3 used uninformative cues, three different SOAs, and inferential rules with disjunctive antecedents, replicating the IOR-like effect with the long SOAs and, at the short SOA, finding evidence of a gradient-like behaviour of the facilitation effect. Our findings show qualitative similarities to some effects typically observed in the orienting of visual attention, although the tasks did not involve spatial orienting.     

Bilingual aphasia and language control: A follow-up fMRI and intrinsic connectivity study

In a world that is becoming more multilingual, bilingual aphasia is a clinical problem with a major clinical impact. However, at present we lack causal explanations of the many features of recovery patterns and there is no consensus about the language in which the patient should receive speech therapy. Further advance requires an understanding of the dynamics of recovery. In a novel longitudinal, single-case study, we combine fMRI and dynamic causal modeling to examine the effects of specific language treatment for picture naming on the representation and control of language areas during the course of recovery. Improved performance in the treated language was associated with increased activation in language areas. Consistent with theoretical expectations, causal modeling indicated increased connectedness of the control and language networks for the treated language. This functional approach holds great promise for investigating recovery patterns and the effects of specific language treatment in bilingual aphasic patients.     

Minority Influence,Social Change,and Social Stability

From Moscovici (Social influence and social change. London, Academic Press; 1976) on, a growing body of research on minority influence has been conducted within the social psychology mainstream. A general guideline of most of the research on this topic associates minority influence with social change and innovation. Minorities have been considered as challengers to social stability, and their dynamics have been considered in relation to the mechanisms through which social changes occur and established norms are modified and evolve in human society. In the present paper, we try to extend this viewpoint by suggesting that it represents only one side of a much more complex story. We consider the conditions under which minorities produce social change as well as the conditions under which they are, instead, inclined to defend the status quo. We then suggest that an integrative account of different approaches – namely, social identity, social dominance, and system justification – might contribute to expanding the theoretical frame of minority influence.     

Bare-Boned Demonstratives

This essay proposes a novel semantic account of demonstratives, aimed at clarifying the sense in which demonstratives are semantically dependent on demonstrations. Its first two sections summarize the main views currently on the market. Section 3 argues that they are all vitiated by the same shortcomings, and yield incorrect results of ‘truth in virtue of character’ and entailment. Section 4 proposes a different account of the relationships between demonstratives and demonstrations, grounded on the idea of truth-conditionally irrelevant aspects of the meaning of certain expressions. The resulting view of demonstratives is consonant with the so-called ‘bare boned’ account of their truth-conditional role, but is also in the position to recognize that the dependence of a demonstrative on a demonstration is, in some sense of the term, meaning-governed. The final section of this essay discusses the distinction between ‘vacuous’ and ‘incomplete’ uses of demonstratives, and cases involving multiple occurrences of these expressions.