Interacciones vinculares mamá-bebé: impacto de las creencias maternas / Mother and baby interactions: Impact of maternal beliefs / Interações entre a mãe e o bebê: impacto das crenças maternas

Resumen (analítico) Las ideas parentales sobre el desarrollo infantil pueden guiarse por falsas creencias e influir en las interacciones tempranas. En este trabajo se estudian las ideas e interacciones en la relación mamá adolescente-bebé. La maternidad adolescente implica riesgos vinculares, llegando incluso hasta el maltrato. Se clasificó a las madres en modernas (activas) o tradicionales (pasivas), según la estimulación y acompañamiento del niño/a. Se evaluaron 145 díadas en los primeros dos años de vida. Los resultados indican peores interacciones en las madres tradicionales, siendo significativos en los contactos cara a cara, las interacciones táctiles y la función de sostén materna. El patrón de apego también se presenta más inseguro. Estos resultados permiten organizar programas de capacitación parental apuntando a la deconstrucción de ideas erróneas sobre el desarrollo y orientando interacciones saludables.

Abstract (analytical) Parental ideas about child development can be guided by false beliefs and influence early interactions. Adolescent mother and baby bonding ideas and interactions are related in this study. Adolescent motherhood implies additional risks, which even include abuse. Mothers are classified as modern -active- or traditional -passive-, based on the stimulation and accompaniment they provide to their child. 145 dyads are evaluated in the first two years of life. The results indicate worse interactions among traditional mothers, based on face-to-face contact, tactile interactions and the maternal support function. The attachment pattern is also more insecure. These results make it possible to organize parental training programs aimed at the deconstruction of erroneous ideas about development and guiding healthy interactions.

Resumo (analítico) As ideias dos pais sobre o desenvolvimento infantil podem ser guiadas por falsas crenças e influenciar as interações iniciais. As idéias e interações do vínculo mãe-bebê adolescente estão relacionados aqui. A maternidade na adolescência implica riscos relacionados, chegando mesmo ao abuso. As mães são classificadas em modernas -ativas- ou tradicionais -passivas-, de acordo com o estímulo e o acompanhamento do filho. 145 díades são avaliadas nos primeiros dois anos de vida. Os resultados indicam piores interações nas mães tradicionais, sendo significativos nos contatos face a face, nas interações táteis e na função de apoio materno. O padrão de apego também é mais inseguro. Esses resultados possibilitam a organização de programas de treinamento parental com o objetivo de desconstruir ideias errôneas sobre o desenvolvimento e orientar interações saudáveis.

Fitness and mating compatibility of Chrysodeixis includens (W.) (Lepidoptera: Noctuidae) populations collected in different provinces and crops in Argentina.

Chrysodeixis includens, is an important Plusiinae pest that feeds on soybean, beans, and cotton. This species has a genetic structure determined by molecular markers in populations collected in soybean crops in Brazil and has developed resistance to insecticides. This had led to an increased interest in the genetic diversity of its populations in Argentina. This study aimed to characterize the fitness parameters and mating compatibility of geographically distant C. includens populations and on different host plants in Argentina. Intra- and inter-population crosses revealed that C. includens populations from Tucumán and Santiago del Estero provinces did not present any evidence of prezygotic and postzygotic incompatibilities, suggesting that both populations collected from soybean plants belonged to a single wide-ranging species. Prezygotic and postzygotic incompatibilities were detected between populations collected from different crops (soybean and bean). These incompatibilities may be caused by the different nutrients that each plant species renders, or the specific pest control strategies which may affect C. includens behavior. Studies of the genetic structure of C. includens populations based on mating isolation on other crops, as well as of the impact of management strategies on the specie, will increase understanding of the reproductive compatibility revealed by the present study.