PERSONAL ATTITUDES OR STRUCTURAL FACTORS? A CONTEXTUAL ANALYSIS OF BREASTFEEDING DURATION

A personal attitudes model (i.e., infant feeding choices are based on personal attitudes primarily) and a structural factors model (i.e., feeding choices are shaped by the structural contexts of women's lives, as much as personal attitudes) of women's breastfeeding behavior were tested by surveying a longitudinal sample of 548 mostly European American women recruited for the Wisconsin Maternity Leave and Health Project. Personal attitudes (enjoyment of breastfeeding, gender-role attitudes, and work and family salience) accounted for half as much variance in breastfeeding duration for women who were employed outside the home compared to those who were not. For women employed outside the home, both structural variables (length of maternity leave and workplace flexibility) and personal attitudes predicted duration. These results have implications for how we construct the issue of women's breastfeeding decisions.     

库恩的《科学革命的结构》为什么会引起惊异？

1.引言 <科学革命的结构>(以下简称<结构>)一书出版后,库恩因其明显的相对主义的观点受到了批判.在辩护的过程中,库恩把自己说成是哲学家中的历史学家,所持的是历史学家关于科学进步的观点.     

Coarse threat images reveal theta oscillations in the amygdala: A magnetoencephalography study

Neurocognitive models propose a specialized neural system for processing threat-related information, in which the amygdala plays a key role in the analysis of threat cues. fMRI research indicates that the amygdala is sensitive to coarse visual threat relevant information—for example, low spatial frequency (LSF) fearful faces. However, fMRI cannot determine the temporal or spectral characteristics of neural responses. Consequently, we used magnetoencephalography to explore spatiotemporal patterns of activity in the amygdala and cortical regions with blurry (LSF) and normal angry, fearful, and neutral faces. Results demonstrated differences in amygdala activity between LSF threat-related and LSF neutral faces (50–250 msec after face onset). These differences were evident in the theta range (4–8 Hz) and were accompanied by power changes within visual and frontal regions. Our results support the view that the amygdala is involved in the early processing of coarse threat related information and that theta is important in integrating activity within emotion-processing networks.     

Effects of anxiety and attention control on processing pictorial and linguistic emotional information

This study investigated the role of executive attention control in modulating selective processing of emotional information in anxiety. It was hypothesized that the combination of high anxiety and poor attention control would be associated with greater difficulty in ignoring task-irrelevant threat-related information. The study included both faces and words as stimuli. Cognitive interference effects were assessed using two emotional Stroop tasks: one with angry, fearful, happy and neutral faces, and one with threat-related, positive, and neutral words. An objective measure of attention control was obtained from the Attention network task. There were four participant groups with high/low trait anxiety and high/low attention control. Results indicated that the combination of high anxiety and poor attention control was associated with greater cognitive interference by emotional faces (including angry faces), compared to neutral faces. This interference effect was not evident in participants with high anxiety and high attentional control, or in low-anxious individuals. There was no evidence of associations between anxiety, attention control, and the interference effect of emotional words. Results indicate that high anxiety and poor attention control together predict enhanced processing of emotionally salient information, such as angry facial expressions. Implications for models of emotion processing are discussed.     

Body Objectification,MTV, and Psychological Outcomes Among Female Adolescents1

In response to the American Psychological Association's Task Force on the Sexualization of Girls, the present study explored the role of sexually objectifying media—in this case, music television—in a host of psychological consequences among a community sample of adolescents girls (M age = 13 years). Objectification theory posits that the consequences of sexual objectification involve the process of self‐objectification. As such, we hypothesized that music television consumption would first and foremost be associated with self‐objectification, which would, in turn, predict a number of body‐related consequences. The findings support a model in which self‐objectification mediates a direct relation between music television viewing and body esteem, dieting, depressive symptoms, anxiety, and confidence in math ability.     

Understanding and Semantic Strucure: Reply to Timothy Williamson

In his essay '"Conceptual Truth"', Timothy Williamson (2006) argues that there are no truths or entailments that are constitutive of understanding the sentences involved. In this reply I provide several examples of entailment patterns that are intuitively constitutive of understanding in just the way that Williamson rejects, and I argue that Williamson's argument does nothing to show otherwise. Williamson bolsters his conclusion by appeal to a certain theory about the nature of understanding. I argue that his theory fails to consider the role that the structure of a sentence plays in determining its meaning. The cases I present suggest that this role imposes greater cognitive requirements on understanding than Williamson can acknowledge.     

History,methodology and early algebra 1

The limits of ‘criterial rationality’ (that is, rationality as rule‐following) have been extensively explored in the philosophy of science by Kuhn and others. In this paper I attempt to extend this line of enquiry into mathematics by means of a pair of case studies in early algebra. The first case is the Ars Magna (Nuremburg 1545) by Jerome Cardan (1501–1576), in which a then recently‐discovered formula for finding the roots of some cubic equations is extended to cover all cubics and proved. The second is the formulation by Albert Girard (1595–1632) of an early version of the fundamental theorem of algebra in his L'invention nouvelle en l'algèbre (Amsterdam, 1629). I conclude that in these cases at least, the questions raised in the philosophy of science debate can also be asked of the history of mathematics, and that a modest methodological anarchism is the appropriate stance.     

Book reviews

International Journal for Philosophy of Religion -     

The changing relationship between psychology and contemporary spiritual direction

As recently as the late 1970's, the relationship between spiritual direction and psychology was tentative and cautious. During the last decade, however, psychological methods and perspectives have been increasingly utilized in spiritual direction. This article examines how clinical psychology, developmental psychology, the psychology of women, and professional psychology are becoming increasingly relevant to the contemporary practice of spiritual direction in the United States, and how, in the process, the relationship between psychology and spiritual direction is changing.