Persoonlijk verslag van de zoektocht van de beroemde auteur naar de essentie van haar leven.

The ability to rapidly detect facial expressions of anger and threat over other salient expressions has adaptive value across the lifespan. Although studies have demonstrated this threat superiority effect in adults, surprisingly little research has examined the development of this process over the childhood period. In this study, we examined the efficiency of children's facial processing in visual search tasks. In Experiment 1, children (N=49) aged 8 to 11 years were faster and more accurate in detecting angry target faces embedded (...) in neutral backgrounds than vice versa, and they were slower in detecting the absence of a discrepant face among angry than among neutral faces. This search pattern was unaffected by an increase in matrix size. Faster detection of angry than neutral deviants may reflect that angry faces stand out more among neutral faces than vice versa, or that detection of neutral faces is slowed by the presence of surrounding angry distracters. When keeping the background constant in Experiment 2, children (N=35) aged 8 to 11 years were faster and more accurate in detecting angry than sad or happy target faces among neutral background faces. Moreover, children with higher levels of anxiety were quicker to find both angry and sad faces whereas low anxious children showed an advantage for angry faces only. Results suggest a threat superiority effect in processing facial expressions in young children as in adults and that increased sensitivity for negative faces may be characteristic of children with anxiety problems. (shrink)

During the nineteenth century, traditional Catholic Spain and its "decadent intellectual climate" was chalenged by liberal Europeanizing influences. It had happened before, but this time the status quo was threatened by Krausism, an idealistic doctrine of universal harmony and rational freedom. In the ensuing culture clash, Francisco Giner de los Rios (1839-1915), a leading exponent of Krausist thought, provided the dominant influence on Spanish intellectuals engaged in the areas of education, law, literature, and science. This outstanding contribution to Spanish cultural (...) history by Solomon Lipp, author of Leopoldo Zea and Three Chilean Thinkers, introduces the political and philosophical reactions to Krausism through the thought and personality of the man who "dreamed one day of a new flowering of Spain"—Francisco Giner de los Rios. (shrink)

We prove the existence of a perfect Π01 set of reals such that the uniform join of any of its infinite subsets is above 0′. We explain a couple of ways in which this demonstrates the optimality of the Low Basis Theorem.

A definitive theory for ethical decision making in nursing is still only conjecture. The literature confirms that there have been numerous examinations of ethical decision making in nursing, with most proposing either the justice or the care orientation, or a combination of both. In the absence of a definitive theory, this exploratory work sets out, via grounded theory, to shed some light on the methods used every day by nurses to make ethical decisions in the clinical area. The data show (...) that some factors, such as doctors, colleagues and the organization, profoundly influence ethical decision making. The informants used both care and justice to formulate decisions, which is known as the combined approach. As a result of these findings, this article concludes with tentative suggestions and recommendations for practice. (shrink)

Laland et al. suggest that as a specific evolutionary force niche construction has entailed the encephalization of the brain. While not denying rapid co-evolution of brain traits and abilities with niches and cultures, I argue that encephalization reflects a classical genetic buffer system allowing rapid evolutionary adaptation independent of the nature of the selective pressure.

The present study examined the relationship between emotion malleability beliefs and daily positive affect (PA) and negative affect (NA) in adolescents. 639 participants provided information about emotion malleability beliefs and emotion regulation strategies on the first day of the study and six daily measurements of PA and NA. Emotion malleability beliefs had a positive relationship with PA and a negative relationship with NA. Higher emotion malleability beliefs predicted lower carryover effects of PA and NA across assessment days. We also found (...) that cognitive reappraisal might affect the relationship between emotion malleability beliefs and daily affect, such that those who held high levels of malleability beliefs were more likely to engage in cognitive reappraisal and report lower NA and higher PA. The findings of the present study suggest that emotion malleability beliefs could predicate daily emotions and emotion dynamics across days in adolescents. (shrink)

Facial attributes such as race, sex, and age can interact with emotional expressions; however, only a couple of studies have investigated the nature of the interaction between facial age cues and emotional expressions and these have produced inconsistent results. Additionally, these studies have not addressed the mechanism/s driving the influence of facial age cues on emotional expression or vice versa. In the current study, participants categorised young and older adult faces expressing happiness and anger or sadness by their age and (...) their emotional expression. Age cues moderated categorisation of happiness vs. anger and sadness in the absence of an influence of emotional expression on age categorisation times. This asymmetrical interaction suggests that facial age cues are obligatorily processed prior to emotional expressions. Finding a categorisation advantage for happiness expressed on young faces relative to both anger and sadness which are negative in valence but different in their congruence with old age stereotypes or structural overlap with age cues suggests that the observed influence of facial age cues on emotion perception is due to the congruence between relatively positive evaluations of young faces and happy expressions. (shrink)

Dual process accounts of affective learning state that the learning of likes and dislikes reflects a learning mechanism that is distinct from the one reflected in expectancy learning, the learning of signal relationships, and has different empirical characteristics. Affective learning, for example, is said not to be affected by: (a) extinction training; (b) occasion setting; (c) cue competition; and (d) awareness of the CS-US contingencies. These predictions were tested in a series of experiments that employed simple Pavlovian conditioning procedures. Neutral (...) visual pictures of geometric shapes, or tactile conditional stimuli (CS) were paired with aversive electrotactile unconditional stimuli (US). Dependent measures were physiological (skin conductance, blink startle modulation) or verbal (US expectancy, on-line and off-line ratings of CS pleasantness). Different combinations of these dependent measures were employed across different experiments in an attempt to assess affective and expectancy learning simultaneously. Changes in CS pleasantness as indexed by ratings or blink startle modulation were readily observed. However, contrary to the predictions from dual-process accounts, results indicated that acquired CS unpleasantness is subject to extinction, occasion setting, cue competition, and not found in absence of CS-US contingency awareness. (shrink)

This paper distinguishes four recognisably different geographical processes in principle causing species to die out. One of these processes, the one we dub “range eclipse”, holds that one range expands at the expense of another one, thereby usurping it. Channell and Lomolino (2000a, Journal of Biogeography 27: 169–179; 2000b, Nature 403: 84–87; see also Lomolino and Channell, 1995, Journal of Mammalogy 76: 335–347) measured the course of this process in terms of the proportion of the total range remaining in its (...) original centre, thereby essentially assuming a homogeneous distribution of animals over the range. However, part of their measure seems mistaken. By giving a general, analytical formulation of eclipsing ranges, we estimate the exact course of this process. Also, our formulation does not partition a range into two spatially equal parts, its core and its edge, but it assumes continuity. For applying this model to data on the time evolution of species, individual time series should be available for each of them. For practical purposes we give an alternative way of plotting and interpreting such time series. Our approach, being more sensitive than Channell and Lomolino’s, gives a less optimistic indication of range eclipses than theirs once these have started. (shrink)

Conceptual generalisation occurs when conditional responses generalise to novel stimuli from the same category. Past research demonstrates that physiological fear responses generalise across categories, however, conceptual generalisation of stimulus valence evaluations during fear conditioning has not been examined. We investigated whether conceptual generalisation, as indexed by electrodermal responses and stimulus evaluations, would occur, and differ after training with single or multiple conditional stimuli (CSs). Stimuli from two of four categories (vegetables, farm animals, clothing, and office supplies) were used as the (...) CS+ (followed by an electric stimulus) or CS- (presented alone). Generalisation was assessed by presenting novel stimuli from the CS categories after acquisition, extinction, and reinstatement. One category exemplar was used as the CS+ and CS- in the single group, whereas three exemplars were used as the CS+ and CS- in the multiple group. Electrodermal responses generalised in acquisition and extinction but did not differ between groups. In the multiple group, CS evaluations generalised in acquisition and extinction, whereas generalisation was not evident in the single group. Training with multiple CSs also resulted in the extinction of stimulus valence. The current findings have implications for future research examining the generalisation of valence and for exposure-based treatments of anxiety. (shrink)

Generalisation in evaluative conditioning occurs when the valence acquired by a conditional stimulus (CS), after repeated pairing with an unconditional stimulus (US), spreads to stimuli that are similar to the CS (generalisation stimuli, GS). CS evaluations can be updated via CS instructions that conflict with prior conditioning (negative conditioning + positive instruction). We examined whether CS instructions can update GS evaluations after conditioning. We used alien stimuli where one alien (CSp) from a fictional group was paired with pleasant US images (...) and another alien (CSu) from a different group was paired with unpleasant US images. The other members from the two groups were used as GSs. After conditioning, participants received negative CSp instructions and positive CSu instructions. In Experiment 1, explicit and implicit GS evaluations were measured before and after the instructions. In Experiment 2, we used a between-participants design where one group received positive/negative CS instructions while a control group received neutral instructions. In both experiments, the positive/negative CS instructions caused a reversal of explicit GS evaluations and an elimination of implicit GS evaluations. The findings suggest that generalised evaluations can change after CS instructions which may have implications for interventions aimed at reducing negative group attitudes. (shrink)

During evaluative conditioning, a neutral conditional stimulus becomes pleasant or unpleasant after pairings with a positive/negative unconditional stimulus. Measures of US expectancy are...

Technology takes an unprecedented position in contemporary society. In particular, it has become part and parcel of governmental attempts to manufacture life in new ways. Such ideas concerning the governance of life organize around the same contention: that technology and life are, in fact, highly interconnectable. This is surprising because if one enters the sites of techno-scientific experimentation, those visions turn out to be much frailer and by no means “in place” yet. Rather, they afford or enforce constant interfacing work, (...) a particular mode of manufacturing life, rendering disparate, sturdy, and often surprisingly incompatible things available for one another. Here, we contend that both of those aspects, pervasive rationalities of interconnectability and practices of interfacing mark the cornerstones of what we call a new techno-bio-politics of life. In order to grasp the government of life under the technological condition, we must understand how both human and non-human entities are being rendered interconnectable and re-worked through practices of interfacing. We take neuro-technology and care robotics as two illustrative cases. Our analysis shows that the contemporary government of life is not primarily concerned with life itself in its biological re-constitution but rather with life as it is interfaced with and through technology. (shrink)

INTRODUCTION The search for identity, the attempt to define oneself — the result of the individual's sense of alienation — is not restricted to contemporary ...

Three Chilean Thinkers, a companion piece to Three Argentine Thinkers, attempts to examine some of the outstanding characters of Chile's intellectual development by way of analyzing the contribution of three of her distinguished representatives. Each thinker or philosopher, whichever the case may be, is symbolic of a definite sociopolitical movement which left its unmistakable imprint upon the cultural scene. Moreover, each thinker, no doubt, was strongly influenced by European philosophical trends, but should in now way be considered a mere imitator. (...) It would be more accurate to say that they adapted these currents to their particular situation, utilizing the various component elements in order to explain or reform the Spanish American scene. Since each of the three represents a separate epoch, it was thought best to present them in chronological fashion in order to insure a measure of historical continuity. Thus, the first author treated is Francisco Bilbao, representative par excellence of the Romantic period. He is followed by Valentín Letelier, who can be said to have been one of the foremost exponents of what may well be considered as a reaction to Romanticism, namely, the Positivist era. Finally, Positivism, in turn, also produced a reaction in the form of the various idealistic tendencies which blossomed forth at the turn of the century--reaction to the dominant position exercised by evolutionism and scientism--represented in Chile by Enrique Molina. (shrink)