How does cognition evolve? Phylogenetic comparative psychology

Now more than ever animal studies have the potential to test hypotheses regarding how cognition evolves. Comparative psychologists have developed new techniques to probe the cognitive mechanisms underlying animal behavior, and they have become increasingly skillful at adapting methodologies to test multiple species. Meanwhile, evolutionary biologists have generated quantitative approaches to investigate the phylogenetic distribution and function of phenotypic traits, including cognition. In particular, phylogenetic methods can quantitatively (1) test whether specific cognitive abilities are correlated with life history (e.g., lifespan), morphology (e.g., brain size), or socio-ecological variables (e.g., social system), (2) measure how strongly phylogenetic relatedness predicts the distribution of cognitive skills across species, and (3) estimate the ancestral state of a given cognitive trait using measures of cognitive performance from extant species. Phylogenetic methods can also be used to guide the selection of species comparisons that offer the strongest tests of a priori predictions of cognitive evolutionary hypotheses (i.e., phylogenetic targeting). Here, we explain how an integration of comparative psychology and evolutionary biology will answer a host of questions regarding the phylogenetic distribution and history of cognitive traits, as well as the evolutionary processes that drove their evolution.     

Tracking the Emotional Cost of Immigration: Ethno-religious Differences and Women’s Mental Health

The challenges of the settlement process can at times give way to persistent feelings of sadness, loneliness, and despair for immigrant women. Based on analysis of the Longitudinal Survey of Immigrants to Canada, this article shows that immigrant women’s self-reported experiences of mental health vary at arrival and over the course of the settlement process because of the intersection of pre- and post-migration factors. The results show how ethnic origins and religious differences intersect with women’s main activities in Canada and influence multiple mental health trajectories. Immigrant women strategically pursue different post-migration pathways because some are more likely to find the social interactions of employment contexts emotionally distressing while for others shouldering responsibilities for full-time care work in the home leads to mental health problems. Still others who study to retrain or get a Canadian degree find the experience detrimental to their emotional health. However, these very same activities can be conducive to mental well-being for women with different ethno-religious backgrounds. The results illustrate that the intersection of ethnicity, religion, and gender in a stratified Canadian society is complex and produces a range of mental health outcomes. Concerns are raised about the high emotional toll of racialized Canadian workplaces and the stress that some employed Muslim women report. An awareness of influences on immigrant women’s mental health can assist employers and public service providers as well as members of cultural associations and religious groups in providing appropriate social support for them in the early months and years after arrival.     

The Distinct Psychologies of “Looking” and “Leaping”: Assessment and Locomotion as the Springs of Action

Actions require two essential functions: assessment and locomotion. Assessment determines one’s goals and selects the means. Locomotion translates these into concrete behavior. In past work, assessment and locomotion have been portrayed as co‐ordinated and interdependent, or associated with different action phases. In contrast, we review recent theorizing and research that depict assessment and locomotion as autonomous and complementary. Recent evidence supports this conception for the behavior of individuals, groups, organizations, and cultures in reference to actions at different levels of analysis.     

El pensamiento creador

RESUMEN

Tanto en la perspectiva diferencial como en el análisis cognitivo o más ligado a la “psicología general”, el problema de la creatividad ha preocupado a los psicólogos durante décadas. Bajo la etiqueta general de “creatividad” se sitúan algunos de los interrogantes más apasionantes que se pueden estudiar en psicología: Definición de creatividad, procesos implicados en la creatividad, la existencia de diferencias individuales. En este artículo se hace una revisión sumaria de las distintas teorías del proceso creador de Bus y Mansfield, que han intentado dar cuenta de los interrogantes antes mencionados.     

Estudio diferencial del pensamiento creador en los campos simbólico,semántico y figurativo

Resumen

Se plantea un intento de síntesis teórica y empírica entre dos aproximaciones al estudio del pensamiento creador: la asociativa y ta factorial.

Tras el análisis de las teorías de Mednick y Guilford como los modelos más sistemáticos en ambas orientaciones se realizó un estudio factorial con tres muestras de sujetos representativos de tres contenidos de pensamiento definidos en el modelo de Guilford: periodistas (contenido semántico), matemáticos (contenido simbólico) y pintores (contenido figurativo). Junto a una selección de tareas de la batería de Guilford para la medida del pensamiento divergente correspondientes a las tres áreas de información evaluadas, se aplicó el RAT de Mednick a los 171 sujetos. Se realizaron cuatro análisis factoriales, uno global y los otros diferenciando por grupos de sujetos.

Los resultados fueron una confirmación de la teoría factorial de la creatividad de Guilford, al definirse factorialmente tres aptitudes perfectamente diferenciadas en función de los contenidos, pero no se pudo confirmar la naturaleza asociativa de las aptitudes mentales de creatividad en los términos propuestos por Mednick, dada la ausencia de resultados significativos con respecto al RAT. Las conclusiones de este trabajo son inequívocamente confirmadoras de la versión propuesta en las hipótesis de la teoría de Guilford.     

Illusory lightness in the Delboeuf figure

A white disk presented inside a small concentric circle (a display like the Delboeuf figure) looks lighter than when inside a larger one. The magnitude of the effect was measured with 20 observers (10 women, 10 men; ages 19 to 26 years). The decrements in luminance of the disk inside the smaller circle, in order to match the lightness of the disk inside the larger circle, are reported for three different grey backgrounds and correspond to 9.13, 10.33, and 10.46%.     

Faces are special for newly hatched chicks: evidence for inborn domain‐specific mechanisms underlying spontaneous preferences for face‐like stimuli

It is currently being debated whether human newborns’ preference for faces is due to an unlearned, domain‐specific and configural representation of the appearance of a face, or to general mechanisms, such as an up‐down bias (favouring top‐heavy stimuli, which have more elements in their upper part). Here we show that 2‐day‐old domestic chicks, visually naïve for the arrangement of inner facial features, spontaneously prefer face‐like, schematic, stimuli. This preference is maintained when the up‐down bias is controlled for (Experiment1) or when put in direct conflict with facedness (Experiment 4). In contrast, we found no evidence for the presence of an up‐down bias in chicks (Experiment 2). Moreover, our results indicate that the eye region of stimuli is crucial in determining the expression of spontaneous preferences for faces (Experiments 3 and 4).     

RECLAIMING AND RETURNING GENDER TO CONTEXT

Gender receives relatively little attention as a critical aspect of context, despite the general acknowledgment among psychologists that human behavior needs to be studied within the context of societal norms and practices. In this article I explain why this is the case and then, using examples from the area of dual-earner families, describe ways we can give gender its rightful contextual place in research practices. By so doing I also argue that needed transformations can take place.