Category and feature identification

This paper considers a family of inductive problems where reasoners must identify familiar categories or features on the basis of limited information. Problems of this kind are encountered, for example, when word learners acquire novel labels for pre-existing concepts. We develop a probabilistic model of identification and evaluate it in three experiments. Our first two experiments explore problems where a single category or feature must be identified, and our third experiment explores cases where participants must combine several pieces of information in order to simultaneously identify a category and a feature. Humans readily solve all of these problems, and we show that our model accounts for human inferences better than several alternative approaches.     

Emotional context at learning systematically biases memory for facial information

Emotion influences memory in many ways. For example, when a mood-dependent processing shift is operative, happy moods promote global processing and sad moods direct attention to local features of complex visual stimuli. We hypothesized that an emotional context associated with to-be-learned facial stimuli could preferentially promote global or local processing. At learning, faces with neutral expressions were paired with a narrative providing either a happy or a sad context. At test, faces were presented in an upright or inverted orientation, emphasizing configural or analytical processing, respectively. A recognition advantage was found for upright faces learned in happy contexts relative to those in sad contexts, whereas recognition was better for inverted faces learned in sad contexts than for those in happy contexts. We thus infer that a positive emotional context prompted more effective storage of holistic, configural, or global facial information, whereas a negative emotional context prompted relatively more effective storage of local or feature-based facial information     

When to Use Broader Internalising and Externalising Subscales Instead of the Hypothesised Five Subscales on the Strengths and Difficulties Questionnaire (SDQ): Data from British Parents,Teachers and Children

The Strengths and Difficulties Questionnaire (SDQ) is a widely used child mental health questionnaire with five hypothesised subscales. There is theoretical and preliminary empirical support for combining the SDQ’s hypothesised emotional and peer subscales into an ‘internalizing’ subscale and the hypothesised behavioral and hyperactivity subscales into an ‘externalizing’ subscale (alongside the fifth prosocial subscale). We examine this using parent, teacher and youth SDQ data from a representative sample of 5–16 year olds in Britain (N = 18,222). Factor analyses generally supported second-order internalizing and externalizing factors, and the internalizing and externalizing subscales showed good convergent and discriminant validity across informants and with respect to clinical disorder. By contrast, discriminant validity was poorer between the emotional and peer subscales and between the behavioral, hyperactivity and prosocial subscales. This applied particularly to children with low scores on those subscales. We conclude that there are advantages to using the broader internalizing and externalizing SDQ subscales for analyses in low-risk samples, while retaining all five subscales when screening for disorder.     

Kierkegaard on the (un)happiness of faith

Hegel famously accuses Christianity of ‘unhappy consciousness’: it has a normative goal – union with the divine – that it cannot, in principle, satisfy. Kierkegaard was intimately aware of this criticism and, unlike some of Hegel’s other accusations, takes it seriously. In this paper my co-author and I investigate the way in which Kierkegaard addresses this issue in two texts published in 1843: Fear and Trembling and ‘The Expectancy of Faith’. We are especially interested in how the two texts describe faith’s relationship to finitude: for instance, whether the person of faith is permitted to expect that God will bless her in particular and concrete ways. My co-author and I offer competing interpretations. I argue that there is a deep tension in the way faith is described in the two texts; my co-author argues that there is consonance.     

‘As in a theatre’: scientific spectacle in Bacon's New Atlantis

Essay review of Reclaiming Reality, by Roy Bhaskar, London: Verso, 1989, 218 pages, pb £10.95.     

Alcohol intoxication and memory for events: A snapshot of alcohol myopia in a real-world drinking scenario

Alcohol typically has a detrimental impact on memory across a variety of encoding and retrieval conditions (e.g., Mintzer, 2007; Ray & Bates, 2006). No research has addressed alcohol's effect on memory for lengthy and interactive events and little has tested alcohol's effect on free recall. In this study 94 participants were randomly assigned to alcohol, placebo, or control groups and consumed drinks in a bar-lab setting while interacting with a “bartender”. Immediately afterwards all participants freely recalled the bar interaction. Consistent with alcohol myopia theory, intoxicated participants only differed from placebo and control groups when recalling peripheral information. Expanding on the original hypervigilance hypothesis, placebo participants showed more conservative reporting behaviour than the alcohol or control groups by providing more uncertain and “don't know” responses. Thus, alcohol intoxication had confined effects on memory for events, supporting and extending current theories.     

A Brief History of Ghosts: Commentary on Paper by Laurel Moldawsky Silber

Although Gerhardt's commentary points to substantial points of agreement between us—the claim that human being is embodied being, the critique of rationalisms, and the resistance to relativisms—we also have important differences. The chief of these, from my point of view, concern (1) the functions of theoretical language, (2) the level of commitment psychoanalysts owe to traditional language for the sake of community and continuity, and (3) the issue of reification. My reply suggests that Gerhardt has confused the functions of expressive and theoretical language; that, for the sake of a “gossipy connection,” she seems to deprive the psychoanalytic community of the self-reflective criticism of its own shared assumptions; and that there is a difference between metaphor and the misplaced concreteness that is sometimes called reification.     

Reminiscence,Ritual, and Beyond Working Through: Commentary on Papers by Joyce Slochower and by Laura Impert and Margaret Rubin

The author examines, contextualizes, and elaborates upon Slochower's psychoanalytic exploration of commemorative rituals and, more specifically, the Jewish tradition of Yitzor as well as upon Impert and Rubin's understanding of embodied nostalgic reminiscences, considering them within a therapeutic context for the mourner entering into the clinical situation. Slochower's experience with commemorative rituals as facilitating environments for the restoration or support of potential space and memorial activity suggests that they can aid in the re-construction and re-shaping of emotional memory, going beyond a notion of “working through.” Impert and Rubin suggest that generative nostalgic reminisces, a soma-sensory based form of memory that holds the potential for activating arrested mourning, may be clinically usefully in awakening dormant or dissociated grief so that patients can access mourning. Extending upon these contributions, the author further considers the possibility that mourning might be more usefully conceived as processes of transformational work for which a fixed resolution or outcome is neither proscribed nor prescribed. This transformational work may be seen, in part, as ongoing cycles of self-surrender to the mourner's swirling constructions of attachments lost, re-found, re-remembered, and re-conceived.     

A probabilistic account of exemplar and category generation

People are capable of imagining and generating new category exemplars and categories. This ability has not been addressed by previous models of categorization, most of which focus on classifying category exemplars rather than generating them. We develop a formal account of exemplar and category generation which proposes that category knowledge is represented by probability distributions over exemplars and categories, and that new exemplars and categories are generated by sampling from these distributions. This sampling account of generation is evaluated in two pairs of behavioral experiments. In the first pair of experiments, participants were asked to generate novel exemplars of a category. In the second pair of experiments, participants were asked to generate a novel category after observing exemplars from several related categories. The results suggest that generation is influenced by both structural and distributional properties of the observed categories, and we argue that our data are better explained by the sampling account than by several alternative approaches.