Effects of time pressure on context-sensitive property induction

Past research suggests that category-based induction flexibly draws on different kinds of knowledge in different contexts, and that different kinds of knowledge may differ in accessibility. The present study investigates the degree to which knowledge accessibility mediates context-sensitive induction by examining the effects of time pressure on inferences about novel properties of animal species. Participants were told about a novel gene or a novel disease that was true of one category of animals, then rated the likelihood that taxonomically, ecologically, and unrelated animals had the same property, under speeded or delayed conditions. Property effects were observed for taxonomically related species independent of time pressure, but were only observed for ecologically related species in the delayed condition. These results suggest that time pressure selectively restricts access to ecological knowledge, and that knowledge access is critical for context-sensitive inductive reasoning.     

Olfactory stimuli and intermale aggression in androgen-treated castrated sheep

The ability of olfactory stimuli to elicit aggression in male sheep was assessed in testosterone-treated castrates. Ablation of the olfactory bulbs (Exp. 1) did not reduce the capacity of sheep to participate in aggressive behaviour after testosterone treatment. Topical application of urine from castrates treated with propionated testosterone, 5α-dihydrotestosterone, 17β-oestradiol, or an oil vehicle to the fleeces of untreated castrates (Exp. 2) did not result in different levels of aggressive responsiveness in testosterone-treated castrates.     

On Considering a Possible World as Actual: Thomas Baldwin

Two-dimensional possible world semantic theory suggests that Kripke's examples of the necessary a posteriori and contingent a priori should be handled by interpreting names as implicitly indexical. Like Stalnaker, I reject this account of names and accept that Kripke's examples have to be accommodated within a metasemantic theory. But whereas Stalnaker maintains that a metasemantic approach undermines the conception of a priori truth, I argue that it offers the opportunity to develop a conception of the a priori aspect of stipulations, conceived as linguistic performances. The resulting position accommodates Kripke's examples in a way which is both intrinsically plausible and fits with Kripke's actual discussion of them.     

The Night the Raving Died: The Social Construction of a Local Drug Panic

Scholars have recently reformulated the moral panic framework (Goode and Ben-Yehuda 1994 Goode , Erich and Nachman Ben-Yehuda . 1994 . Moral Panics: The Social Construction of Deviance . Oxford : Blackwell Publishing Ltd . [Google Scholar], 2009 ——— . 2009 . Moral Panics: The Social Construction of Deviance , 2nd ed . Oxford : Blackwell Publishing Ltd . [Google Scholar]). We employ this new framework in an evaluation of Gainesville, Florida's adoption of the anti-rave law. Our findings suggest that both individuals and groups were vital in the construction of an interest group model moral panic that led to the adoption of this law. Although researchers have utilized the moral panic framework in analyzing many social and legal changes over the past 40 years, it has also garnered much criticism. In an effort to further advance the framework, we provide several modifications to Goode and Ben-Yehuda's (2009 ——— . 2009 . Moral Panics: The Social Construction of Deviance , 2nd ed . Oxford : Blackwell Publishing Ltd . [Google Scholar]) most recent reconceptualization and recommendations for future moral panic research.     

Discerning intentions in dynamic human action

When we observe others in motion, we usually care little about the surface behaviors they exhibit. What matters are their underlying intentions. Judgments about intentions and intentionality dictate how we understand and remember others' actions, how we respond, and what we predict about their future action. A generative knowledge system underlies our skill at discerning intentions, enabling us to comprehend intentions even when action is novel and unfolds in complex ways over time. Recent work spanning many disciplines illuminates some of the processes involved in intention detection. We review these developments and articulate a set of questions cutting across current theoretical dividing lines.     

Object Perception,Attention, and Memory 2008 Conference Report 16th Annual Meeting,Chicago, IL,USA

We investigated how processing unfolds across time as adults view novel manual activity. Adults advanced through slideshows of an actor performing sleight-of-hand manoeuvres; dwell times were recorded to each slide. As in past work involving larger-scale intentional action scenarios, adults allocated more attention to slides depicting breakpoints—transitions from one event segment to the next—than slides displaying mid-stream action, indicating that dwell times are sensitive to adults' recovery of segmental structure in intricate manual activity. Adults also allocated increased attention towards slides indicative of causal structure, indicating that dwell times index processing of causally relevant information as well as segmental structure. We were additionally curious if adults' learning outcomes would differ as a function of whether they paced themselves or watched slideshows advance at a computer-controlled pace. Memory did not differ, but adults viewing computer-controlled slideshows displayed an advantage in performing the tricks. A single attentional focus may have helped adults learn to re-enact the actions, relative to a split attentional focus.     

Intraclass correlation associated with therapists: estimates and applications in planning psychotherapy research

It is essential that outcome research permit clear conclusions to be drawn about the efficacy of interventions. The common practice of nesting therapists within conditions can pose important methodological challenges that affect interpretation, particularly if the study is not powered to account for the nested design. An obstacle to the optimal design of these studies is the lack of data about the intraclass correlation coefficient (ICC), which measures the statistical dependencies introduced by nesting. To begin the development of a public database of ICC estimates, the authors investigated ICCs for a variety outcomes reported in 20 psychotherapy outcome studies. The magnitude of the 495 ICC estimates varied widely across measures and studies. The authors provide recommendations regarding how to select and aggregate ICC estimates for power calculations and show how researchers can use ICC estimates to choose the number of patients and therapists that will optimize power. Attention to these recommendations will strengthen the validity of inferences drawn from psychotherapy studies that nest therapists within conditions.