The processing of Arabic numbers is under cognitive control

In this study, we evaluated whether the processing of two-digit Arabic numbers is subject to cognitive control. Participants performed a number comparison task with unit–decade compatible trials (36–47) and unit–decade incompatible number pairs (37–46). The unit–decade compatibility (incompatible minus compatible trials) was considered an index of conflict situation in numerical processing. To examine whether participants adapted to numerical conflict, we manipulated the percentage of incompatible trials relative to the percentage of compatible trials (20, 50, 80 % incompatible trials). The unit–decade compatibility effect was modulated by the amount of incompatible trials: the compatibility effect decreased progressively as the percentage of incompatible trials increased. This result indicated that participants adapted to numerical conflict. The findings are discussed in terms of cognitive control. Implications for models of two-digit number processing are also addressed.     

Ravens (Corvus corax) are indifferent to the gains of conspecific recipients or human partners in experimental tasks

Although cooperative behaviours are common in animals, the cognitive processes underpinning such behaviours are very likely to differ between species. In humans, other-regarding preferences have been proposed to sustain long-term cooperation between individuals. The extent to which such psychological capacities exist in other animals is still under investigation. Five hand-reared ravens were first tested in an experiment where they could provide food to a conspecific at no cost to themselves. We offered them two behavioural options that provided identical amounts of food to the actor and where one of the two options additionally delivered a reward to a recipient. Subsequently, we made the ravens play a no-cost cooperation game with an experimenter. The experimenter had the same options as the animals and matched the ravens’ choices, making the prosocial choice the more profitable option. In both conditions, ravens were indifferent to the effects of their choices and hence failed to help conspecifics and to cooperate with the experimenter. While our negative results should be interpreted with care, overall, our findings suggest that the ravens had no understanding of the consequences of their actions for a potential recipient. This study adds to several others that have used a similar set-up and have reported negative results on other-regarding preferences in animals.     

Preschool Children’s Beliefs about Gender Differences in Academic Skills

Evidence from different Latin American countries shows a gap in the academic achievement of girls and boys. Chilean children’s achievement is a case in point, with the gender gap being especially large for mathematics achievement. These differences can be explained partly from the viewpoint of beliefs and implicit theories. Research in this field has focused mainly on elementary and secondary students, and there is no relevant data on preschool children. This study examines Chilean kindergarten children’s beliefs about differences in the academicals skills of girls and boys. Eighty-one preschool children (34 girls, mean age 5 years and 11 months) were recruited from schools serving a middle SES population from downtown Santiago. An instrument to test children’s implicit beliefs about gender differences in academic ability was adapted from previous research. Results support the hypothesis that boys and girls at the age of 5 already hold stereotypical expectations about boys’ and girls’ academic achievement. When asked about which school subject a character liked more, was better at, and found easier, participants showed no preference between math and language when reasoning about a male character, but they indicated that a female character would find math harder, perform worse at it, and like it less than language. These responses did not differ according to the gender of the participating children. Implications of these findings are addressed and limitations and future research are discussed.     

Entrevista con Julián de Ajuriaguerra

RESUMEN

En esta entrevista Julián de Ajuriaguerra describe su historia científica desde que era interno en hospitales psiquiátricos y alumno de Thomas y Lhermitte, comentando los trabajos que realizó con adultos, ancianos y dementes aunque su interés estuviese desde un principio en los niños. Responde, entre otras, a cuestiones tales como si lo biológico se complementa con lo social en el desarrollo, cómo son los vínculos de los padres con el niño, cuál es su posición respecto al psicoanálisis, si es necesaria la interdisciplinariedad para hacer psicología o qué opina del problema de los estadios. También realiza un balance del estado actual de la psicomotricidad, ejemplifica qué entiende por “diálogo tónico” y explica las diferencias entre los juegos de niños y niñas de siete, ocho y nueve años, admitiendo la distinta organización tónica de los sexos. Por último el autor se centra en el trabajo clínico, ofreciendo sugerencias para aquéllos que empiezan a llevarlo a cabo en España. Los comentarios que Ana María Pardo y Ángel Rivière realizan del autor y su obra introducen esta entrevista.     

Potencial de aprendizaje: una presentación

Resumen

El «Potencial de Aprendizaje» (PA) es uno de los conceptos más prometedores como complemento y/o sustitución del estático constructo inteligencia y su medida. Basado en el concepto vygostkyano de «Zona de Desarrollo Próximo» así como en otros más recientes como «Modificabiliaad» o «Educabilidad», en los últimos años se han desarrollado una serie de investigaciones tratando tanto de profundizar en este concepto como de proceder a su medida. Con estos objetivos, en la última década un grupo de investigación en la Universidad Autónoma de Madrid han desarrollado un dispositivo de medida de PA. A modo de Introducción de este Dossier sobre «Potencial de Aprendizaje» se presenta una síntesis de las investigaciones realizadas.     

Encouraging employees to report unethical conduct internally: It takes a village

Via three studies of varying methodologies designed to complement and build upon each other, we examine how supervisory ethical leadership is associated with employees’ reporting unethical conduct within the organization (i.e., internal whistle-blowing). We also examine whether the positive effect of supervisory ethical leadership is enhanced by another important social influence: coworkers’ ethical behavior. As predicted, we found that employees’ internal whistle-blowing depends on an ethical tone being set by complementary social influence sources at multiple organizational levels (both supervisory and coworker levels), leading us to conclude that “it takes a village” to support internal whistle-blowing. Also, this interactive effect was found to be mediated by a fear of retaliation in two studies but not by perceptions of futility. We conclude by identifying theoretical and practical implications of our research.     

Hegel’s logic of finitude

In ??Violence and Metaphysics?? Jacques Derrida suggests that ??the only effective position to take in order not to be enveloped by Hegel would seem to be??to consider false-infinity??irreducible.?? Inversely, refuting the charge of logocentrism associated with Hegelian true infinity (wahrhafte Unendlichkeit) would involve showing that Hegel??s speculative logic does not establish the infinity of being exempt from the negativity of the finite. This paper takes up Derrida??s challenge, and argues that true infinity is crucial to Hegel??s understanding of ideality as a question of normative authority, which does not fall prey to logocentrism. Through an exposition of the dialectic of the finite and the infinite in Hegel??s Science of Logic, I argue that true infinity is not an ontological category that eliminates division, but rather refers to the metalogical standpoint involved in a philosophical account of determinacy. Although fully achieved at the end of the Logic, the metalogical standpoint that Hegel elaborates in the Seinslogik under the banner of the true infinite already clarifies that determinacy is a product of normative authority that is itself precarious.     

Portuguese Mothers and Fathers Share Similar Levels of Work-Family Guilt According to a Newly Validated Measure

Transformations in family and work life have led to profound changes in the articulation of both spheres. The massive entry of women into the labor market, the decline of a family model based on the male provider, increasing job demands, and persistent gender inequality are factors that can generate work-family conflict and lead to feelings of guilt. Work-family guilt is a topic still rarely studied, particularly in Portugal. Given the importance of understanding the complexity of the relationships underlying the work-family interface and the lack of instruments in Portuguese to assess the feeling of guilt as it pertains to the work-family interface, our goal was to adapt the Work-Family Guilt Scale (WFGS) to the Portuguese population. Our results confirmed the two-dimensional structure of the scale with good reliability and validity. The WFGS was invariant between genders, with no significant mean differences between men and women. Convergent validity with the variables of work-to-family and family-to-work conflict and discriminant validity between the two dimensions of the WFGS was demonstrated. Use of this scale will allow the identification of feelings of guilt, which pose risks to the physical, emotional and psychological well-being of workers. Guilt feelings should, like conflict, be considered as a psychosocial risk that must be mitigated through policies and practices aimed at promoting a balance between family and working life.