Higher order sequential effects in psychophysical judgments

We found that the depth of sequential effects depends on the judgment task. An experiment with squares indicated that stimulus-response pairs up to two trials back were included in the judgment process when subjects were required to make category judgments of size, whereas only the immediately preceding event was incorporated when subjects were making magnitude estimations. In the case of category judgment, interactions between the current stimulus and prior stimuli as well as configural effects indicated that events one and two trials back meet an equivalent function in the judgment process and that these events may jointly operate in one trial. These findings can be explained by a class of models that assume that the position of preceding stimuli relative to the current stimulus is decisive in the judgment process. The multiple-standards model is a representative of this class according to which there are two types of standards: (1) the endpoints of the range as long-term standards and (2) traces of preceding stimuli as short-term standards.     

A neuroconstructivist model of past tense development and processing

We present a neural network model of learning and processing the English past tense that is based on the notion that experience-dependent cortical development is a core aspect of cognitive development. During learning the model adds and removes units and connections to develop a task-specific final architecture. The model provides an integrated account of characteristic errors during learning the past tense, adult generalization to pseudoverbs, and dissociations between verbs observed after brain damage in aphasic patients. We put forward a theory of verb inflection in which a functional processing architecture develops through interactions between experience-dependent brain development and the structure of the environment, in this case, the statistical properties of verbs in the language. The outcome of this process is a structured processing system giving rise to graded dissociations between verbs that are easy and verbs that are hard to learn and process. In contrast to dual-mechanism accounts of inflection, we argue that describing dissociations as a dichotomy between regular and irregular verbs is a post hoc abstraction and is not linked to underlying processing mechanisms. We extend current single-mechanism accounts of inflection by highlighting the role of structural adaptation in development and in the formation of the adult processing system. In contrast to some single-mechanism accounts, we argue that the link between irregular inflection and verb semantics is not causal and that existing data can be explained on the basis of phonological representations alone. This work highlights the benefit of taking brain development seriously in theories of cognitive development.     

Pornography, Individual Differences in Risk and Men’s Acceptance of Violence Against Women in a Representative Sample

Based on the Confluence Model of Sexual Aggression, we hypothesized that individual differences in risk for sexual aggression moderate the association between pornography use and attitudes supporting violence against women. This hypothesis was in keeping with the findings of a recent meta-analysis which indicated such a positive association between porn use and attitudes. However, in this meta-analysis there was also a high degree of heterogeneity among studies, suggesting the existence of crucial moderating variables. Unfortunately, the available literature included in this meta-analysis did not enable identifying the basis for such moderation. To fully test our hypothesis of individual differences moderation and related hypotheses requires a representative sample. Fortunately, a unique nationally representative sample of U.S. men in any form of post-high school education that we obtained in 1984–85 enabled testing our predictions. Participants had anonymously completed questionnaires that included items pertaining to pornography use, attitudes about violence against women, and other measures assessing risk factors highlighted by the Confluence Model. As predicted, while we found an overall positive association between pornography consumption and attitudes, further examination showed that it was moderated by individual differences. More specifically, as predicted this association was found to be largely due to men at relatively high risk for sexually aggression who were relatively frequent pornography consumers. The findings help resolve inconsistencies in the literature and are in line not only with experimental research on attitudes but also with both experimental and non-experimental studies assessing the relationship between pornography consumption and sexually aggressive behavior.     

An Exploration of Parents’ Experiences and Empowerment in the Care for Preterm Born Children

Because of improved survival rates and medical prospects, the emphasis in care for preterm infants has shifted in recent years to a focus on support for the wellbeing of children and their families. For the healthcare professionals the parents of these children are the main partners for improving the care of their children. In this context, referring to “patient empowerment” implies not only the infant but also the parents, in other words “parent empowerment”. We aimed to explore parents’ experiences with hospital and aftercare for their preterm children, and the implications for parent empowerment, by organizing face-to-face (n = 4 and n = 7) and online (n = 14) focus group interviews with parents of preterm children. These focus group interviews showed that these parents indicated a lack of support and recognition of parental worries in the care for their infant during two important periods: (1) the transfer to another hospital and (2) after discharge home. These group interviews showed that parents greatly value initiatives that support and empower them in their role as parents and that strengthens their involvement in the care for their children. Requirements for enhancing parent empowerment are proposed.     

Reconceptualising hope within the context of vulnerability in South Africa

This study was aimed at clarifying conceptualisations of hope amongst vulnerable young people in a high HIV/AIDS prevalence South African setting. Participants were four young people ranging from 15 to 19, and interview data were collected on their household conditions, lived experiences in the communities and schools, and family support systems. Analysis applied grounded theory process to characterise main themes. Four mechanisms characterised the nurturing of hope processes in the context of vulnerability, namely: predatory, protective, promotion and possibility processes. Six protective intrapersonal themes were also identified: finding purpose, building a sense of the future; building faith in a higher power; embracing educational opportunities; thinking positively; building on strengths; and adopting supportive networks. Findings suggest that conceptualisations of hope need to be grounded in social context and the imperatives of social justice to support vulnerable young people in realising their future aspirations.     

The instantiation principle re-evaluated

Three experiments are presented in which different aspects concerning Heit and Barsalou's (1996) instantiation principle were investigated. Mean typicalities of subordinate categories within superordinates were predicted very accurately for all investigated concepts. Multiple instantiations were shown to yield somewhat better predictions than single instantiation. The instantiation principle also successfully predicted mean typicalities on a different level (i.e., in lower-level concepts). An alternative account of Heit and Barsalou's findings was also proven wrong. Finally, correspondence between empirically obtained and predicted standard deviations is argued to be dubious, because of several possible sources of bias in the observed and predicted values.     

Wittgenstein,Korsgaard and the Publicity of Reasons

In The Sources of Normativity (Korsgaard, Christine. The Sources of Normativity. Cambridge: Cambridge University Press, 1996), Christine Korsgaard tried to argue against what she called the ‘privacy’ of reasons, appealing to Wittgenstein's argument against the possibility of a private language. In recent work she continues to endorse Wittgenstein's perspective on the normativity of meaning, although she now emphasizes that her own argument was only meant to be analogous to the private language argument. The purpose of the present paper is to show that the Wittgensteinian perspective is not only not useful in support of Korsgaard's general project, but that it is positively inimical to it, in two ways. First, Wittgenstein opposes views on which principled or rule-following behavior requires that one be guided by anything like a mental representation of a rule or principle. But for Korsgaard, human action essentially requires this. Second, Wittgenstein systematically attempts to de-emphasize the importance of the first-personal perspective, and to emphasize the social functions even of concepts that might seem deployed primarily from that perspective: for example, concepts of sensations and intentions. This is the reverse of Korsgaard's emphasis. The paper also argues, however, that the private language argument does have some implications for a theory of rationality and reasons.     

Psychiatry in the labyrinth: Deconstructing deviancy

Abstract

Deviancy is a key concept in psychiatry and other therapeutic disciplines, because it dramatizes the way in which they depend on the establishment of norms, in order to justify their theory and practice. The writings of Derrida as well as Goethe provide a different view: that “deviation” from a “norm” can be fundamentally important to the well‐being of the norm. Thus deviancy can be viewed not as something to be “corrected” but rather as a creative possibility to be encouraged and shaped in productive ways. As a case of “deviancy” we have selected the writings of John Perceval, whose Narrative provides a critique of the mental‐health establishment of his day, particularly the asylum, and offers an alternative to 19th‐century views of “lunacy.” We see his “schizophrenic” commentary on his “psychosis” and its treatment as analogous to the deconstructive, “schizophrenic” discourse of postmodernity which is similarly critical of the reigning, modernist psychiatric order.