Predicting sexual aggression: the role of pornography in the context of general and specific risk factors

The main focus of the present study was to examine the unique contribution (if any) of pornography consumption to men's sexually aggressive behavior. Even after controlling for the contributions of risk factors associated with general antisocial behavior and those used in Confluence Model research as specific predictors of sexual aggression, we found that high pornography consumption added significantly to the prediction of sexual aggression. Further analyses revealed that the predictive utility of pornography was due to its discriminative ability only among men classified (based on their other risk characteristics) at relatively high risk for sexual aggression. Other analyses indicated that the specific risk factors accounted for more variance in sexual aggression than the general risk factors and mediated the association between the general risk factors and sexual aggression. We illustrate the potential application of the findings for risk assessment using a classification tree.     

Enhanced feminine sexual behavior and infertility in female rats prenatally treated with an antiestrogen

An attempt to elucidate the possible role of prenatal estrogen on the development of feminine sexual behavior and reproductive function was made by treating females with the antiestrogen CI628 prenatally on days 13-19. Control females were prenatally treated with saline or remained untreated. The animals were delivered by caesarian section on day 22 of pregnancy and placed with foster mothers whose newborn pups had been previously removed. Intact peripubertal females in each treatment group were observed for several reproductive measures, including the capacity to become pregnant. Other females were ovariectomized in adulthood and treated with estradiol benzoate (EB) (1, 1.5, 2 or 4 micro g/rat) and 0.5 mg progesterone and tested for receptivity, proceptivity and sexual partner preference. Two weeks after the completion of these tests, the females were injected daily for 7 days with 0.25 mg testosterone and tested for sexual partner preference and mounting behavior. The results obtained showed accelerated vaginal opening, and infertility in the antiestrogen-treated intact females and enhanced receptivity and proceptivity in response to 1 micro g EB in the antiestrogen ovariectomized females. Sexual partner preference and mounting behavior did not differ between groups. These results suggest an involvement of prenatal estrogen on the development of female reproductive function, but not on behavioral differentiation.     

Personalidad,diferencias individuales y decisión con riesgo

Resumen

Esta investigación trata de comprobar si existen diferencias individuales en las estrategias usadas en las tareas de decisión con riesgo que puedan ser explicadas en términos de rasgos polares de personalidad (neuroticismo y extroversión). Al mismo tiempo se trata de encontrar evidencia de las causas (no explicadas) que podrían justificar la clasificación de estrategias propuesta desde la teoría de la integración de la información. Este artículo consta de dos partes bien diferenciadas, en la primera se lleva a cabo un experimento donde los datos no apoyan que los rasgos de personalidad usados expliquen las diferencias individuales; se encontró apoyo para tres de las estrategias descritas en integración de la información. En la segunda parte, con el propósito de analizar las diferencias individuales en el tiempo, se muestra que la estructura lógica del sujeto, como procesador/decisor, es relativamente invariante en el tiempo. Finalmente se discute si la naturaleza de la tarea experimental obliga a los sujetos a desarrollar estrategias ad hoc con poco claro valor de generalización.     

Efectos del contexto y de la imaginabilidad en la memoria de oraciones negativas

Resumen

Las investigaciones sobre memoria de frases han encontrado que las negativas se recuerdan peor que las afirmativas. Entre las posibles causas de este resultado están: a) la mayor complejidad gramatical de las negativas, b) la dificultad que tienen estas frases de ayudarse de imágenes mentales y c) la ausencia, en estos experimentos, de un contexto que ayude a comprender las frases.

En este trabajo se investigaron las tres variables en un solo diseño factorial, utilizando como sujetos 32 estudiantes universitarios. De forma individual, se les presentaban las oraciones, una a una, en la pantalla de un televisor y después de la presentación se les pasaba una prueba de reconocimiento. Los resultados demostraron que las negativas se recuerdan peor solamente si no existe un contexto que posibilite su codificación profunda. Cuando se presentan las frases formando parte de un párrafo no aparecen tales diferencias entre afirmativas y negativas.     

Updating spatial layouts mediated by pointing and labelling under physical and imaginary rotation

The present experiments manipulated the modality in which participants communicated object directions (by pointing or verbal labelling) in a learned layout, and the mode in which they were required to rotate (physically or imaginary). The results showed that the pointing modality was strongly influenced by the mode of rotation (Experiment 1). Pointing was faster and more accurate in the physical than in the imaginary rotation. In addition, a different pattern of dimension accessibility was observed: equi-accessibility in physical rotation (front-back = right-left) and standard in imaginary rotation (front-back < right-left). By contrast, the verbal modality was less influenced by the mode of rotation. The same standard pattern of dimension accessibility and similar speed was obtained in physical and imaginary rotation. These results are explained by proposing a first-order embodiment, typical of ordinary pointing, which involves a low-cost sensory-motor updating of object positions and a second-order embodiment, most typical of language, which involves a represented (rather than physical) self and an object-to-frame high-cost updating.     

Relating numeric cognition and language processing: Do numbers and words share a common representational platform?

Numerical processing and language processing are both grounded in space. In the present study we investigated whether these are fully independent phenomena, or whether they share a common basis. If number processing activates spatial dimensions that are also relevant for understanding words, then we can expect that processing numbers may influence subsequent lexical access to words. Specifically, if high numbers relate to upper space, then they can be expected to facilitate understanding of words such as bird that are having referents typically found in the upper vertical space. The opposite should hold for low numbers. These should facilitate the understanding of words such as ground referring to entities with referents in the lower vertical space. Indeed, in two experiments we found evidence for such an interaction between number and word processing. By eliminating a contribution of linguistic factors gained from additional investigations on large text corpora, this strongly suggests that understanding numbers and language is based on similar modal representations in the brain. The implications of these findings for a broader perspective on grounded cognition will be discussed.     

From top to bottom: spatial shifts of attention caused by linguistic stimuli

Interacting with the world around us involves dealing with constant information input. Thus, humans must selectively filter and focus attention on relevant aspects for the current situation. The current study investigates orientations of attention after words that do not convey spatial information in their meaning (e.g. cloud, shoe). The current study minimizes both the linguistic demands by simply presenting task-irrelevant words and the visual processing demands by implementing a simple target detection task. According to automatic response biases in the motor domain (Lachmair et al. 2011), we hypothesized that words such as cloud produce attention shifts in the direction of the typical location of the word's referent in the world (e.g. cloud up in the sky). Indeed, target detection was facilitated if target location matched the typical location of the word's referent. These findings are strong evidence for the important role of space during language processing, showing that vertical attention is modulated even by task-irrelevant verbal cues.